Niva Chevrolet heater tap where is the video

It is indispensable if you live outside the city, it justifies itself as a car for the whole family and is very stable. With the arrival of the autumn-winter period, good and high-quality operation of the heater will be relevant. If the stove does not heat well, the Chevrolet Niva will become a very uncomfortable car, and you will have to forget about its advantages. Moreover, if the car was parked in the garage overnight, it is problematic to be in it and feel the cold comparable to that of a basement. Let's consider the main components of this technological unit of the car:

radiator;
fan;
dampers;
pipes;
air duct;
unit for regulating fluid movement.

The stove will work properly if each of its parts works properly and in a coordinated manner.

Main malfunctions and methods for eliminating them in the Chevrolet Niva car stove:

The ventilating elements of the heater burned out. This will be immediately visible in winter by the formation of characteristic condensation on the windows. They simply need to be replaced with new ones;
the unit that regulates the temperature breaks, since it can be made of plastic rather than rubber or rubber, which has greater wear resistance. Naturally, the possibility of the cable falling off should also be considered. Depending on the situation, you either carefully return the part to its place and it continues to perform its traction function, or you need to purchase a new one and replace it;
poor filter performance due to clogging. Accordingly, they need to be cleaned or purged, otherwise air pockets will form in the stove, disrupting its productive operation;
problems with the cooling system - you should rinse and fill in a new coolant - antifreeze or antifreeze, which is changed annually for prevention;
The damper that regulates the supply of cold and hot air has broken. It will have to be replaced;
The thermostat is not working well. It might simply get jammed. Please note that the heater will malfunction when driving fast. It must be replaced immediately, because poor quality work will lead to an increase in temperature throughout the Chevrolet Niva;
The resistor on the radiator has burned out or the radiator is clogged. There can be many reasons: antifreeze, insects, leaves and other debris. Also, water should not be allowed to get into this part of the stove. The radiator must be cleaned periodically, and in case of a malfunction, a new resistor must be purchased and installed. Cleaning is carried out with compressed air or a vacuum cleaner, an industrial hair dryer;
The heater control unit, the so-called controller responsible for regulating the interior temperature, may fail. This is already a problem with electronics; to fix it, you need the services of a specialist.

Recommendations for normal and long-term operation of the heating-cooling system in a Chevrolet Niva:

periodically lubricate the bearings of the stove ventilation device;
Check the filters and radiator regularly, and if necessary, clean them or purchase new ones. The filter cleans the air from dust and infections coming from the street;
remove air pockets when the engine is idling and muffled;
clean the pipes with citric acid or a special product, since poor quality coolant forms sediment and build-up in the pipes.

At a temperature of minus 20 degrees, the Chevrolet heating system should heat the top of the cabin to an average of 10 degrees, and the temperature in the legs is 5-7 degrees higher. Passengers in the rear seats will receive air with a temperature of about 14 degrees. This way, everyone will be in comfortable conditions, and the trip in winter will be quite pleasant.

To avoid problems with the heating and ventilation system, preventive maintenance should be carried out systematically. After all, a car is a complex device that will drive well and function properly only with proper care.

Of course, problems with the stove are not the most critical troubles or breakdowns, but your health, mood and, naturally, performance depend on your comfort and the comfort of your passengers. We value not the quantity, but the quality of the years lived, so let your Chevrolet Niva be a high-quality, elegant and capable car.

How to fix the problem in which the stove on a Chevrolet Niva does not blow at your feet

It is not difficult to fall in love with a vehicle like the Chevrolet Niva with all your heart. The car is truly beautiful and comes with a fair amount of benefits. Unfortunately, in modern reality it is almost impossible to find a device or mechanism that does not have flaws.

The Chevrolet Niva was also no exception, so it is not at all surprising that after some period of direct operation of this vehicle, complaints from car owners begin to arrive. This flow of some discontent especially intensifies in the winter.

Complaints are related to the fact that on the Chevrolet Niva the stove does not blow into the feet at all, which freeze very quickly, depriving both the driver and passengers of comfort. Why the stove refuses to blow in this direction is not a mystery. It’s just that most drivers are convinced that this is a technical defect due to insufficient attention from the designers who developed such a model.

To ensure proper comfort for the driver and passengers, it will be necessary to modify the heater damper drive.

This way you can come to an agreement with the Niva Chevrolet stove and make it evenly warm up the interior.

The stove is good (if it works). The stove is hot, the cabin is warm, I can’t find where to blow into my feet...

The filter cleans the air from dust and infections coming from the street; remove air pockets when the engine is idling and muffled; clean the pipes with citric acid or a special product, since poor quality coolant forms sediment and build-up in the pipes. As a result, it cannot effectively blow in several directions at once, but when the flow is directed towards the legs, the air is distributed anywhere, but not in the desired direction. This is done as follows:

If you move the lever in the opposite left direction until it stops, air will flow between the side and top deflectors. Actually, this is a design feature of this model.

Unfortunately, in modern reality it is almost impossible to find a device or mechanism that does not have flaws. The Chevrolet Niva was also no exception, so it is not at all surprising that after some period of direct operation of this vehicle, complaints from car owners begin to arrive. This flow of some discontent especially intensifies in the winter.

Complaints are related to the fact that on the Chevrolet Niva the heater does not blow into the feet at all, which freeze very quickly, depriving both the driver and passengers of comfort.

Why the stove refuses to blow in this direction is not a mystery. It’s just that most drivers are convinced that this is a technical defect due to insufficient attention from the designers who developed such a model.

The radiator must be cleaned periodically, and in case of a malfunction, a new resistor must be purchased and installed. Cleaning is carried out with compressed air or a vacuum cleaner, an industrial hair dryer; The heater control unit, the so-called controller responsible for regulating the interior temperature, may fail.

We recommend: Why antifreeze boils in the expansion tank: a review of common breakdowns

This is already a problem with electronics; to fix it, you need the services of a specialist. Recommendations for normal and long-term operation of the heating-cooling system in a Chevrolet Niva: The filter cleans the air of dust and infections coming from the street; remove air pockets when the engine is idling and muffled; clean the pipes with citric acid or a special product, since poor quality coolant forms sediment and build-up in the pipes.

At a temperature of minus 20 degrees, the Chevrolet heating system should heat the top of the cabin to an average of 10 degrees, and the temperature in the legs is degrees higher.

You can also relatively smoothly regulate the amount of air supplied in different directions. After such a modification, you may encounter a decrease in air flow. This is due to air redistribution.

Chevrolet Niva 2004, 80 l. With. — self-repair

The result is that in the middle position the cabin is still quite cool. To eliminate this drawback, you will need an unnecessary plastic canister.

We cut off the neck from it and attach it to the deflector. The result is a fairly powerful and targeted flow.

The cause of cold in the cabin may also be a simple heater failure. Therefore, we will consider the most common causes of breakdowns. All of them lie on the surface, and in principle are characteristic of many modern cars. The most common cause is a blown fuse. Check the appropriate fuse and replace it if necessary.

Heater diagram

If the temperature with a fully warmed-up engine is within degrees, we look for the reasons for the lack of air in the legs in the heater design.
A feature of the stove on a Chevrolet Niva is the absence of a heater radiator tap, that is, antifreeze circulates in a full circle in winter and summer and passes through the heater radiator. Taking this fact into account, the factory somewhat complicated the design of the air ducts and air dampers - there are two of them in the Chevrolet Niva. One works for frontal airflow, the second is responsible for supplying air to the feet of the front and rear passengers and the driver.

It is with this damper that problems arise that we will try to solve. We take out the central air duct and the air duct that conducts air to the driver’s feet.

Unscrew 2 screws on the radiator.

And we begin to assemble in reverse order. If during assembly you have a couple of extra screws left, then you have assembled everything correctly! If you have any questions or maybe I forgot to add something, please contact me, I’ll be happy to help.

Niva Chevrolet Shaitan Cyclone in the legs, revision!

The selection of the stove operating mode, temperature and air flow direction is made using the stove control unit located on the center console. Heating system with air conditioning The principle of operation of a car heater with air conditioning is similar to that described above. However, its design is significantly different. Instead of an intermediate heater housing, an air conditioner evaporator is installed, hidden by a plastic casing.

When the air conditioner is turned on, air is supplied to the cabin through the evaporator using a damper. The design of a car heater with air conditioning is somewhat different: To carry out high-quality repairs, you first need to understand the reasons and identify the faulty element of the system.

The stove does not heat the footwell. There may be several reasons why the stove does not direct air to the feet. First you need to find out whether this mode is turned on correctly.

Due to the design features of the damper system, the direction of air to the legs is carried out as follows: Set the fourth rotation speed of the stove fan. Set the heater mode switch to the upper vertical position.

Switch the mode controller one position to the left. After this, air should begin to flow into the legs. If this does not happen, the procedure should be repeated several more times.

If the mode still does not turn on, you should check the following components: Coolant leakage If antifreeze leaks from the cooling system without visible streaks on the radiator and pipes, you need to pay attention to the condition of the heating system

The main signs of a coolant leak through the heater are: Typically, the leak occurs through the heater radiator. To verify this, you need to remove the lower part of the center console.

DIY heater replacement

If traces of moisture are detected in the area of the stove body, it is recommended to replace the radiator. If a coolant leak is detected through the heater radiator, it should be replaced. Before replacing the heater radiator, you should check the tightness of the heater pipes and their connections.

The stove does not warm up the air well. Often the stove does not warm up the interior effectively enough. Instead of hot air, slightly warm or even cool air comes from the deflectors.

This usually happens for the following reasons: Before the decisive step of removing and replacing the heater, you should pay attention to the heater core. It may well be that the reason for the non-working state lies precisely in this

In a Chevrolet Niva car, the stove can be installed and removed without any problems, the main thing is to follow the procedure. Radiator The radiator of the Niva-Chevrolet stove is a sensitive topic and deserves separate consideration.

The standard heating system in this car does not always work well and produces little heat. The standard radiator begins to leak over time, and you have to replace it.

But don’t rush, maybe it makes sense to clean it or solder it? But if there is no option other than replacement, then that’s what you should do.

Before replacing the radiator, you need to understand the existing types of such devices. Types of radiators Radiators are made from two types of materials: Each has its own pros and cons. An aluminum radiator heats up quickly, is inexpensive and has good rigidity with low weight.

Refinement of the heating system of the Chevrolet Niva

When the intensity of supply of air heated by the heater into the cabin decreases, it becomes necessary to modify the heating system. This is due to errors in the assembly of the system. The main problem is the lack of tightness in the air ducts and dampers. This leads to incorrect distribution of warm air throughout the cabin. The modification is carried out as follows.

The steering column casing and driver's side console are removed.
On the heater side, a plate is removed that sets the direction of air supply.

The die located on the heater side needs improvement
The slot at the top of the die is made straight while maintaining the starting and ending points. To give the desired trajectory of movement of the damper, you can glue a plastic card to the die. To give the desired trajectory of movement of the damper, you can glue a plastic card to the die
The lower flap, which is responsible for supplying air to the legs, is rigidly attached. To do this, a homemade bracket is cut out.

The last stage of modification of the stove is the rigid fixation of the lower damper

As a result, warm air will be distributed throughout the cabin strictly in accordance with the position of the flow direction regulator.

Thus, even an inexperienced car enthusiast can ensure a comfortable microclimate in the interior of a Chevrolet Niva car. To do this, you just need to strictly follow the instructions and recommendations of professionals.

VAZ 2121 (Niva 4x4): replacing the heater radiator with your own hands

Replacing the pump yourself on a Niva Chevrolet: quickly, efficiently and with your own hands

Heater diagram

The most common reason for its failure is: Warm air does not enter the lower part of the cabin Before starting repairs of the stove, you should check the temperature of the coolant. Perhaps the problem is not in the interior heater, but in the cooling system.

With the help of damper position regulators, warm air is directed to different parts of the cabin. First, the dampers should be adjusted. To supply hot air to your feet, follow these steps: The engine warms up until the warm air can be felt with your hand. Consequently, it is almost impossible to open the tap without breaking it.

stove Niva Chevrolet

https://youtube.com/watch?v=UNMCm8ypDbI

To get to it, you need to dismantle the dashboard in the cabin on the passenger side. The stove tap is mounted in a special niche in the engine compartment. If the tap has been replaced, then it is better to install new pipes along with it, because during operation they have probably lost their elasticity.

Collective farm tuning of the Niva Chevrolet stove: In some cases, the correct switching method does not work and then you have to modify the heater in order to achieve its full functionality. The main problem with dampers and ducts is leakage.

We will improve the cracks and eliminate leaks in the stove. Remove the heater control unit by disconnecting all wires and cables from it. If there is a radio, remove that too. Disconnect the transmission tunnel lining.

You don’t have to remove it completely, but only lift it by unscrewing two screws on the driver’s and passenger’s sides. Remove the steering wheel, steering column trim and unscrew the screws securing the front panel. When removing the dashboard, mark all the wires to make it easier to reattach them in their places in the future.

Without removing the entire front panel, when dismantling the heater unit, some elements of the air conditioner and the stove itself can be damaged. Remove the front panel frame attached to the body with screws. The heater housing cannot be removed without dismantling the front panel frame. Behind the frame you will find the heater unit casing, connected to the intermediate housing of the heater or to the evaporator section on a car with air conditioning.

Chevrolet Niva 2012, 80 l. With. — self-repair

Installation of a new unit is carried out in reverse order. The most common purpose of such tuning is to improve the air supply to the driver's and front passenger's footwells. To do this, install additional air ducts and adjust the shape of the damper drive strip

For such modification you will need: You must work with the plastic of the heater housing very carefully, as it is quite fragile

The steps are performed in the following order: Select tubes suitable for the role of additional air ducts. You can use plumbing pipes as additional air ducts. Remove the side trims on the center console on both sides.

Air flows in the cabin are distributed by air ducts, which are located under the instrument panel and under the floor tunnel lining, and under the floor upholstery to supply air to the feet of the rear passengers.

To control the distribution of air flows, use the distribution regulator handle on the center console of the instrument panel, as well as the regulators and guides of the central and side deflectors on the instrument panel.

To heat the interior, move the temperature control knob to the hot red zone. In this case, the outside air is directed using a damper through the heater radiator, which is integrated with the engine cooling system.

Remove the screws of the tie rod brackets. Disconnect the rods from the heater damper levers. Unscrew the screw of the bracket securing the recirculation flap drive rod and remove the lever bracket and disconnect the wiring harness block from the heater electric fan switch.

Heater diagram First of all, we want to orient you that the Niva already has a liquid-type heater installed, which allows you not only to supply warm air into the car interior, but also to cool the running engine, preventing it from overheating. It's no secret that overheating the engine entails extremely undesirable consequences.

An electromagnetic clutch is built into the compressor pulley, which engages and disengages the compressor shaft from the pulley according to signals from the engine control system controller. Refrigerant vapor from the compressor under high pressure enters the condenser located in front of the radiator of the engine cooling system. Passing through the honeycombs of the condenser, the refrigerant is cooled by the counter flow of air and with the help of fans of the cooling system.

Chevrolet Club - Information

First of all, check the flow in the expansion tank at idle. There should be a vigorous flow. If there is no stream, then throw the pump in the trash. The pump must be original, no cheap one will do, it has a smaller impeller. With a non-original or faulty pump, a stream appears in the tank only when you re-gas it.

Pump and test. Lech wrote:. Good day everyone! I would also like to make my small contribution to the forum if, of course, anyone else is interested. Not long ago I had problems with the heater which I solved by replacing the pump. If I posted the topic incorrectly, please correct me.

The essence of my problem was that with the engine well warmed up, the temperature in the cabin left much to be desired. The strong air flow from the heater was lukewarm. Thanks to the respected forum participants, the decision was made to change the pump. Indeed, in my case, the stream in the reservoir at idle was completely absent, appearing only closer to the engine speed. Having removed the pump, it turned out that there was a “hepa” with a small impeller:. The hepa impeller has a diameter of 64mm. The TZA impeller has a diameter of 72mm.

Measuring the air temperature from the heater in the glass mode with a well-warmed engine before replacing the pump showed the following result: After replacing the pump with the original one, a steady stream appeared in the expansion tank at idle speed and the heater air temperature in the same mode on the glass increased significantly: Now I I felt warm, I even unscrew the heat-cold knob to 12 hours, otherwise it’s too hot..

The presence of a wheel on the windshield is especially incomprehensible. What can we now understand from this diagram? Theoretically, nothing blows from there until you put the front in position.

In practice, it constantly blows from the front if the dampers are not treated using the technology below. In short, you need to turn the wheel in the front position. Feel what is blowing from there and never touch it again. Additional airflow to the windshield never hurts. The diagram has errors, but not major ones, the main thing is to grasp the meaning. Treatment using technology improves the overall warming of the feet.

Indications for treatment are:. This bonus significantly increases the comfort in the car interior when the damper is in frosty weather.. Bigfoot wrote a:. Everything works perfectly, now it blows where I want, in the legs of Tashkent it even blows in the legs of the rear passengers. This has never happened before.. It is better to increase the efficiency of heating the legs by eliminating air leaks from the large technological holes podiums for fastening the damper cables, which are installed at the factory no one is fooling around.

The holes are through, air is blown out of them from the stove... Here they are visible in the light. Don’t put the foam rubber too far into them, otherwise the damper will jam the heat and cold. In the photo the largest one is in the center. The flap with its small squiggle on the right can pinch and drag pieces of foam rubber inside. Where else can cold air siphon from?

From the joints of part number 4. Owners of Shniv with a condo can relax or tense up. Because simply removing the glove compartment will not solve anything. But you can check it by removing the glove compartment and rushing through in the cold with a breeze, the passenger can feel everything.. No problems were found with the other joints. Maybe this will reassure owners of Eltse trim levels.

Replacing the stove fan

Replacing a heater motor is quite simple.

Required Tools

To work you will need:

set of hex keys;
Phillips screwdriver;
new electric heater motor.

Removing the stove fan

The stove fan is removed as follows.

The negative terminal of the battery is disconnected.
On the right (in the direction of travel) under the windshield there is a cabin filter protected by a snap-on lid. After removing the cover and removing the filter, access to the heater fan is available. To access the heater fan, the cabin filter is removed
The impeller is removed. To do this, use a Phillips screwdriver to unscrew the bolt holding the mounting bracket. The impeller moves to the side and is removed. To remove the impeller, you need to unscrew the bolt and remove the mounting bracket
In the cabin, in front of the passenger seat, the fastening of the glove compartment panel is unscrewed. To access the electric motor, the glove box panel is removed
The connector with the power wires is disconnected. To remove the electric motor, you must disconnect the connector with the power wires
Use a short 10mm hex to unscrew the mounting bolts and remove the electric motor. The heater motor is secured with three bolts
After removing the engine, the impeller is carefully removed through the cabin filter niche. The impeller can be pulled out freely from the cabin filter side

Installing a stove fan

The faulty electric motor is repaired or replaced with a new one. A damaged impeller should also be replaced. A thin wire is threaded through the holes in its body and the cavity of the cabin filter is secured. The impeller must be installed in such a way that the groove located inside it fits into the pin of the electric motor shaft.

Before installing a new engine, the axle is lubricated with a special lubricant.

Assembly is performed in reverse order. If the impeller does not fit into place, it should be moved several times in different directions until it is completely seated on the motor shaft. Then, under the hood, the wire is cut with wire cutters, the mounting bracket is installed and the bolt is tightened. New heater fan installed.

Thus, diagnosing faults, repairing and replacing the heater fan on a Chevrolet Niva is not very difficult. This will require a minimum set of standard tools. Keep an eye on the stove, and the inside of your car will always be warm.

Important nuances

There are several important points that must be taken into account when changing the heater fan on a Chevrolet Niva. Here they are:

The cabin filter cover should be removed very carefully, since the latches that hold it in place are easily broken. This point is especially relevant if you have to change the fan in the cold; when lowering an unscrewed electric motor, you should remember that there is a small guide bushing on its shaft, which is very easy to lose: it falls, rolls down the glove compartment directly into the engine compartment and it will be very difficult to find it there;

when lowering an unscrewed electric motor, you should remember that there is a small guide bushing on its shaft, which is very easy to lose: it falls, rolls down the glove compartment directly into the engine compartment and it will be very difficult to find it there;

It is not always possible to find a “native” fan for a Chevrolet Niva on sale (its catalog number is 21238118020)

For this reason, many car owners install LUZAR brand fans (and its number is lFh01211). These devices cannot be called a good alternative, and here's why. “Native” fans for the Chevrolet Niva can rotate at a speed of 3000 rpm, while the analogue from LUZAR reaches a maximum speed of 2800 rpm. The “native” fan consumes a current of only 18 A, and the LUZAR consumes 25 A. At the same time, fuse F18, mentioned above, is designed for 25 A, that is, the risk of its burnout when using the LUZAR fan increases many times over. In such a situation, the best option would be to install a “native” fan on the Chevrolet Niva.

Replacing a broken fan on a Chevrolet Niva is not that difficult. Even a novice car enthusiast who has held a Phillips-head screwdriver at least once in his hands can cope with this task. The main thing is not to damage the latches on the cabin filter cover and not to lose the fan guide bushing.

My account

After removing the glove compartment, access to the heater valve opens. A rod is attached to the crane lever using a clamping bracket. Use an open-end wrench size 7 to loosen the nut located on the bracket.

The traction cable is removed from the crane lever. Using an open-end wrench, the fastening of the rod is loosened. Using a 10mm socket, unscrew the two bolts securing the faucet to the wall of the engine compartment. The mounting bolts of the heating tap are unscrewed with a 10 mm socket wrench. The heater tap is removed from its niche and replaced with a new one.

The heating tap is removed from its seat. The tap is assembled and installed in the reverse order. Initially, you should disconnect the hose from the pipe. This action is quite difficult, since the hose sits tightly on the pipe. If you move incorrectly, your hand may slip and you may be injured.

For this reason, we recommend that you wear gloves to avoid such unfortunate consequences. Now, using a screwdriver, unscrew the screws that secure the seal, pressing it against the partition.

To dismantle the stove faucet, it is necessary to drain the antifreeze. Open the faucet as far as possible. We substitute the hose and insert one end into the basin. To drain the antifreeze, you need to unscrew the plug on the cylinder block. Lightly hold the hose with your hand and gradually open the cap located on the expansion tank.

We do this work carefully, as the stream of antifreeze will gradually increase

In order to remove the stove valve, it is necessary to completely drain the antifreeze. Loosen the clamp on the carburetor heating pipe and remove this part from the fitting. After all the coolant has flowed out, screw the plug into the block and tighten it well. Antifreeze leakage from the stove In used cars, coolant often begins to leak from the stove. The reason for this is usually wear and tear on the pipes or a malfunction of the heater tap.

Since antifreeze circulates under pressure, all connections must be tight. However, during prolonged use, hoses and gaskets lose their elasticity and burst. After inspecting the heating system and identifying the leak, the worn part is replaced with a new one. When making repairs, you should not use clamps made in China due to their poor quality.

Due to loss of elasticity, the stove pipes crack over time and leak antifreeze. The coolant can also leak from the heater radiator itself. In this case, it will have to be replaced with a new one.

Replacing a Chevrolet Niva Chevrolet heater core

https://youtube.com/watch?v=PgDz4rJ2GJ0

The stove does not heat well. To diagnose the malfunction, turn on the ignition, start the stove and try to change the intensity of the air supply. If at the first three speeds the air is not supplied or is supplied cold, the cause of this is a faulty resistor that needs to be replaced.

The reason for the inability to switch speeds is the failure of the resistor. If the resistor is OK, the diagnosis continues. If it is low, add antifreeze to normal and check it after a few days.

If the level has noticeably decreased, you should pay attention to the hoses and pipes, wear of which is usually the cause of coolant leakage. One of the reasons for poor heating of the interior by the heater may be a low level of coolant in the system. If the control unit malfunctions, it will have to be removed

Faucet replacement process

Repairing the unit at home is only possible if you have the appropriate tools - it’s easier to contact a car service center.

Another reason for the stove stopping may be a dust-clogged cabin filter.

In this case, the load on the electric motor increases, which, in turn, leads to failure of the heater fuse. In this case, it should be washed. This is true when purchasing and operating used cars. However, it can sometimes fail. Replacing the heater cable Sometimes it is not possible to change the position of the heater damper.

The reason for this is a broken cable. To replace it, you will need a standard set of tools and a headlamp. Replacing the cable is carried out as follows. The driver's seat moves back. The handles are removed from the damper control panel and the screws are unscrewed.

The panel is dismantled on the left side at the location of the driver's feet. To access the cable, you will need to remove the heater control mechanism. The latches securing the cables are removed. The recirculation damper mechanism is dismantled and the cable is removed.

Each end must be twisted into a ring and securely fixed. Using a cable, the position of the air supply flap is changed. Assembly is carried out in the reverse order.

Solutions to the problem

However, realizing that poor bottom heating is a technical mistake of car developers, drivers still do not want to put up with such a problem and strive to modernize something on their own, eliminating the discomfort that has arisen. In principle, such owners do the right thing. You cannot give in to problems; it is important to look for ways to solve them. If it is difficult to find the right course of action on your own, then by visiting specialized forums, it becomes much easier to come to the right decision with the collective wisdom.

Technical problems

Initially, we suggest that you figure out why such a problem arises on Niva. In this vehicle, the heating and ventilation systems are interconnected. Air penetrating from outside enters the radiator, then it can be heated, and after that the warm flows will be redirected into the car interior. At the same time, the developers provided the vehicle with three main ways for warm air to enter the cabin. It all depends on what position the driver sets the switch:

When the lever is moved all the way to the right, air will penetrate through the upper deflectors.
If you move the lever in the opposite (left) direction all the way, air will flow between the side and top deflectors.
If the lever is installed centrally, the air should be directed directly to the legs, but, unfortunately, in practice this cannot be achieved.

It should be noted that by choosing the first option for installing the lever, the driver will be able to provide a good flow of warm air onto the windshield, helping to quickly remove ice if it occurs. Experienced drivers do not recommend choosing the second option for installing the lever, since in this case the warm air flows will be mainly directed under the dashboard, leaving only “crumbs” to heat the interior.

Solutions

Now that the reasons for poor heating, especially in the lower part of the car’s interior, have become clear, it doesn’t hurt to delve into the recommendations we have proposed, which will guide you towards actions that can completely eliminate the problem.

So, most of all the problem lies in the incorrect operation of the dampers, which do not rotate enough in the right direction, and sometimes close completely. An old bank card will help you solve a technical problem. No, you will not pay off, spend your financial savings. Please note that we suggested that you use the old, no longer needed card. We'll just really need to cut some things out of plastic.

Now remove the decorative panel of the heater, then remove the damper control. While holding this regulator in your hands, remove its lower part. We recommend that you do not make hasty movements, since all parts of this regulator are made of not very durable plastic. It is not difficult to break such fragile plastic structures. Unfortunately, this will complicate your work later, since you will have to use a soldering iron to restore the integrity of the structure.

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Now set the upper flap to the upper position. To forcefully “tightly” secure this position of the dampers, prepare a suitable-sized bracket (you can even cut it yourself), and then secure it with self-tapping screws. Be sure to make sure that the bracket you install creates a real obstacle to choosing a different direction for the lower flap. From the prepared plastic card, cut out a new path for the air flow, singe the edges of the cut out part and introduce them into the structure you have modernized. Of course, after performing these not very complicated steps, you need to return the device to its place, doing all the same steps in the opposite direction.

Unfortunately, while anticipating the joy of high productivity of your own work, you suddenly discover that the air is directed exactly where you wanted it, but at the same time you notice that the strength of the air flow has become less. For this reason, the problem of poor foot heating has not been completely solved. However, we propose to continue some technical changes. Take an old plastic canister, cut out the neck, install it to the deflector, and secure it securely with self-tapping screws. This very simple technical trick will ensure increased flow.

Additional reasons

There are also additional reasons why heating the Niva’s interior becomes impossible. This can happen when a fuse blows due to a short circuit in the vehicle's electrical circuit. Of course, you will have to identify the blown fuse and replace it. In the same way, a resistor can fail; you will also need to remove it and install a new one in return.

If the heater is working, but you are not very happy with the heating power, we recommend checking the coolant level. Oddly enough, a small amount of antifreeze or antifreeze prevents the vehicle from heating well. Sometimes, by pouring in coolant, without following the recommendations, and performing all these actions hastily, the driver himself “airs” the system, which is why the heating power also drops. In this case, it will be necessary to bleed the system to eliminate any air pockets that have arisen in the system.

The following can also negatively affect interior heating:

excessive contamination of the fan;
failure of the stove motor;
thermostat malfunction;
destruction of bearings.

So, if you are attentive to your vehicle, immediately delve into the essence of the problems, eliminate them in a timely manner, following the algorithm we propose, your Niva will last a long time and will delight you with excellent work.

If this happens regularly, then it makes sense to check the wiring. The problem may also be in the fan itself. To test, turn on the ignition and check the voltage at the engine terminals.

If it is missing, you will have to replace the motor.

Naturally, each specific car has its own gaps in the heating system, so there cannot be a single treatment recipe. However, with little effort, without removing the front panel and the entire heater, you can modify the guides for the dampers so that the main flow of warm air is supplied to the feet.

To do this, you need to remove the casing from the console on the driver's side and, if desired, the steering column casing. In front of us, on the stove side, is a die that is responsible for the direction of movement of both dampers, and therefore the direction of air supply.

All that remains is to unscrew the die with the slots, change the shape in the uppermost slot from curved to straight, maintaining the starting and ending points. Having changed the geometry of the movement of the upper damper, it remains to firmly fix the lower one, which is responsible for blowing the legs. It is enough to fix the lever of the lower damper with a self-tapping screw in the position of blowing the legs.

Now there will be constantly warm air in the legs, and its quantity and proportions between the windshield and the legs are smoothly selected by a conventional air direction regulator.

What is a stove tap, its functional features and location

The stove tap is a metal part that resembles a regular water tap. Antifreeze (coolant or coolant) constantly flows through it.

In the Chevrolet Niva, the coolant can flow through 2 cooling circles: winter and summer. The heating tap gives the driver the opportunity to switch to one of them. For example, with the onset of summer, when the tap is fully open, it is almost unbearable to be inside the car due to the heat, so it is closed for this period of time, and with the onset of cold weather, the tap is opened again. Due to active use, the part eventually becomes unusable and leaks coolant.

It is very easy to determine whether a part is faulty - lift the cover in the Chevrolet Niva interior. If there are obvious signs of leakage, the unit must be replaced.

In the diagram you can see where the heater tap is located and the circulation of antifreeze in two circles

It is best to replace the metal faucet of the stove with a ceramic one, which will increase its service life several times.

Introduction

Modifying the Chevrolet Niva stove with your own hands does not require huge labor costs and investments. As practice shows, it can be done by absolutely anyone who wants to upgrade a standard unit in such a way that the airflow is maximum. All owners of a Chevrolet Niva car note the impossibility of adjusting the warm air in such a way that the glass and the area where the feet of the driver and passengers are located are simultaneously heated.

In fact, there are several methods to make interior heating more optimal and productive, however, in the material below we will consider a method that allows you to carry out all the manipulations without first removing the front panel. In addition, this modernization method does not require large financial investments.

How to remove and install the stove tap

To replace a part, you must initially prepare the appropriate consumables, as well as tools:

open-end and socket wrenches;
pliers;
flat screwdriver;
a five-liter tank into which you will need to drain the liquid from the radiator;
new faucet.

After preparing the necessary tools, you can begin replacing the tap, and the sequence of actions should be as follows:

We install any container with a volume of about five liters under the radiator and unscrew the cap on it. Wait approximately 10 minutes until all the coolant has drained.
Next, open the hood of the car and loosen the pipe clamp on the tap pipe.
We take pliers, carefully bend them and pull out the short cotter pin.

Remove the heating tap clamp using pliers

Unscrew the screws securing the seal using a 7" wrench

Remove the sealing plate from the faucet

In order to get to the stove tap, unscrew the nuts and remove the glove box

Using an open-end wrench, loosen the nut fastenings to remove the traction cable

Unscrew the heating tap mounting bolts

A pipe is installed on the part, as well as rod fastenings; in this case, new gaskets must be used, which are pre-coated with sealant.

Sealing plates are coated with sealant to reduce the risk of coolant leakage

The tap is put in place as follows:

We tighten the two nuts on the pipe with the rod using a “10” wrench.
We put the part in place and tighten the fastening bolts located on the tap.
We install the rod and tighten the clamping bolt using the key to “7”.
We tighten the self-tapping screws that hold the sealing gasket with an “8” wrench.
We insert the pipes into the fittings and tighten the clamps.

The new heating tap is installed in the reverse order

Check whether the second pipe is tightly connected to the radiator; if not, then replace the gaskets there too. In addition, we strongly recommend installing new hose clamps.

When filling the system with liquid, fill it slowly to avoid air pockets. Antifreeze is poured in until it begins to flow out of the pipe. Moreover, the heating tap must be open.

Antifreeze must be poured into the heating system carefully, avoiding the formation of air pockets.

Video: how to install a heater tap on a Chevrolet Niva

Replacing a broken tap with a new one on a Chevrolet Niva is easy. To do this, you need to acquire the usual set of tools that are found in every car, and buy a new faucet. After which even an inexperienced driver will be able to install it on the car.

If only fourth speed works

In cases where the motor refuses to work at the first, second and third speeds, but turns perfectly at the fourth, the same resistor with three isolated windings is to blame. If you can’t buy it, you can try to restore it yourself. True, only in the case when the thermal fuse has blown, naturally, no one will rewind the windings, the game is not worth the candle.

Fan resistor

You can remove and check the resistor without dismantling the engine. This is done like this:

Use a Phillips screwdriver with a short blade to unscrew the rightmost screws securing the glove compartment.
Unscrew the rightmost screws securing the glove compartment.
We gain partial access to the motor, but this is enough to get to the resistor.
Move the glove compartment aside to get to the resistor.
Remove the terminal block and move the wiring harness to the side.
We remove the contact block.
Using a Phillips screwdriver, unscrew the screw securing the additional resistor.
Unscrew the screw securing the resistor.
We remove the resistor from the housing.
Resistor contacts.
We take out the resistor.
We check the integrity of the thermal fuse with a multimeter. If it is faulty, you can try to replace it.
Installation of a new or restored resistor is carried out in the reverse order.

Types of radiators

Radiators are made from two types of materials: copper and aluminum. Each has its own pros and cons. An aluminum radiator heats up quickly, is inexpensive and has good rigidity with low weight. However, such a device cannot be repaired, since it is very problematic to solder it. Aluminum also does not retain heat well, so it cools quickly.

Copper radiators are more expensive, but have their own positive characteristics:

Unlike aluminum ones, they last longer because copper does not corrode.
They maintain the set temperature for a long time, despite the fact that they heat up slowly. In the Niva SUV, the stove requires heating more space than in conventional sedans. This is why you should choose a high-quality radiator.

The downside of a copper radiator is one thing: acquiring parts of acceptable quality is not very easy. A copper device is more expensive than an aluminum one. Its price is in the range of 2000–2500 rubles.

The main elements of the system and what are the benefits of silicone pipes

The details of the system are presented in the diagram above, these include:

air cooling radiator (art. 2123-1301012);
casing with fans (art. 2123-1300025-01);
temperature sensor (art. 2101-3808600-02 and 2112-3851010);
water pump (art. 2123-1307010);
thermostat (art. 2123-1306010);
pump (art. 21230-1307011-82).

All elements of the cooling system are connected to each other through various hoses and pipes, which in most cases are made of rubber or polymers with similar properties.

Note: the material used depends solely on the manufacturer of the specific spare part, so when choosing, you should pay attention to this point.

As a reasonable alternative to rubber hoses, car enthusiasts increasingly prefer silicone analogues, which are significantly more expensive. The main reason for this is that silicone does not “tan” in the cold and does not crack. This prevents coolant from leaking out of the system, which greatly affects its performance. Complete set of Chevrolet Niva cooling system pipes:

Upper radiator hose - 1 piece;
Lower radiator hose - 1 piece;
Thermostat and water pump pipe 1 piece;
Heater radiator supply hose;
Heater radiator outlet hose.

Symptoms of a malfunctioning stove fan

The main signs of a stove fan failure are as follows:

the electric motor does not work;
the rotation speed of the electric motor decreases;
The fan starts to creak.

Depending on the symptoms that appear, the procedure for eliminating the problem is determined.

The electric motor does not work

If the electric motor stops working, the noise in the cabin disappears when the heater is turned on.

Often the reason for this is the failure of fuse F18 with a rating of 25A in the corresponding block, through which voltage is supplied to the stove motor.

Another reason may be damage to the fan motor winding - if the wire insulation is damaged, an interturn short circuit may occur. In this case, the electric motor must be replaced.

When there is an interturn short circuit, the electric motor stops working.

The rotation speed of the electric motor decreases

When the rotation speed of the motor shaft decreases, it is somewhat more difficult to determine the source of the problem. The noise level becomes noticeably lower as the motor power decreases. This may be due to severe wear on the armature or brushes. In addition, the fan begins to consume much more current, and this can lead to the failure of fuse F18.

If the armature is heavily worn, the electric motor will rotate much more slowly.

The fan starts to creak

The fan begins to creak when the motor bearings wear out. The more wear, the stronger the squeak. If you do not take any action, the heater fuse will burn out and the motor itself will jam. In this case, the electric motor should be replaced with a new one.

Replacing the heater fan fuse

Almost any malfunction of the stove motor leads to the replacement of fuse F18. On a Chevrolet Niva car, the fuse box is located in the passenger compartment under the instrument panel and is closed with a cover secured with two self-tapping screws. When replacing F18, it is recommended to check and, if necessary, replace other fuses.

The heater fuse is located in the fuse box under the instrument panel

If fuse F18 has to be changed quite often, then the problem should be looked for elsewhere. There may be a short circuit somewhere in the motor power supply circuit. Sometimes the fuse blows as a result of severe contamination of the cabin filter. In this case, the electric motor does not have enough power for normal air ventilation, and the fuse fails.

Often the cause of the heater motor stopping is a blown fuse.

The suspicious fuse is removed from its seat in the block using special tweezers. If it burns out, a new one is installed in its place. When checking, it is better to use a multimeter, since it can be difficult to visually determine the integrity of the fuse.

Important nuances

There are several important points that must be taken into account when changing the heater fan on a Chevrolet Niva. Here they are:

The cabin filter cover should be removed very carefully, since the latches that hold it in place are easily broken. This point is especially relevant if you have to change the fan in the cold;

The guide bushing from the Chevrolet Niva heater fan is very easy to lose

It is not always possible to find a “native” fan for a Chevrolet Niva on sale (its catalog number is 21238118020)

Installing a LUZAR fan on a Chevrolet Niva is justified only as a last resort