Temperature sensor Daewoo Nexia: where it is located and how to replace it

We remove the sensor for replacement if irregularities are detected in the readings of the coolant temperature indicator in the instrument cluster. On a car with an F16D3 engine...

...the coolant temperature indicator sensor is screwed into the cylinder head in its lower part under the intake pipe of the first cylinder, next to the coolant temperature sensor of the control system (the intake pipe has been removed for clarity).

To remove it, drain the liquid from the cooling system.

Disconnect the wire from the temperature gauge sensor.

Using a 13mm head, unscrew the temperature gauge sensor...

...and remove it.

On a car with an A15SMS engine.

...the coolant temperature gauge sensor is located at the top of the engine - screwed into the threaded hole in the intake manifold.

Therefore, when replacing it, you can do without completely draining the coolant.

Drain a small amount of coolant through the radiator cap.

By sliding, disconnect the wire tip from the sensor.

Using a high head “12” we turn out the sensor...

...and remove it .
Install the sensor in reverse order. The thread of the sensor is conical, so we screw the sensor until the rotation resistance increases significantly, after which we slightly “tighten” the sensor. We pour coolant into the cooling system and bring its level to normal (see “Replacing the coolant”). ( 8

Source: https://daewoo.biz/remont-daewoo/nexia-2008/remont-avtomobilya/sistema-okhlazhdeniya/snyatie-datchika-ukazatelya-temperatury-okhlazhday/

Where is the Gentra temperature sensor: location, replacement

Often, when the cooling system fan on a Daewoo Gentra does not work, it is necessary to check the temperature sensor. In this case, it is necessary to know the location of the node in order to carry out diagnostics and replacement.

Sensor location

Sensor diagnostics

There are a number of factors that indicate a malfunction of the temperature sensor. Let's consider what causes and diagnostic methods exist:

If the coolant temperature sensor is not working, you need to check the fuses first.

• If the temperature gauge shows excessively high or low temperatures, warm up the engine.
• If the temperature sensor shows a high temperature when the engine is not yet warmed up, disconnect the wires from the sensor. If temperature changes are observed, then the sensor should be replaced. If the sensor shows a high temperature, then the wires are shorted.
• If after warming up the engine the temperature sensor is still not functioning and the fuses have been checked, turn off the engine. Disconnect the wire from the sensor and ground it to the engine body. Turn on the ignition without starting the engine. If the sensor shows high temperature, it should be replaced.

Replacement

When the engine is completely cool, remove the radiator cap, compress the upper radiator hose and replace the cap.

1. Disconnect the sensor from electricity.
2. Prepare a new temperature sensor.
3. Install a new sensor.
4. Carefully insert the sensor and connect the wiring harness.

Add coolant and start the engine. Check the system for leaks.

Conclusion

The Daewoo Gentra coolant temperature sensor is located on the cylinder block. You can diagnose the unit yourself; to do this, you only need to remove the part from the car.

Source: https://koreanautoreview.com/daewoo/gentra/gde-naxoditsya-datchik-temperatury-dzhentra.html

The engine temperature arrow jumps: why does this happen and what should the driver do?

Many drivers are well aware that constant monitoring of engine temperature allows timely detection of possible problems with the cooling system and protects the engine from overheating and costly repairs.

For this reason, experienced car owners constantly pay attention to the internal combustion engine temperature gauge while driving a car.

In this article we will talk about why the engine temperature arrow rises, then the pointer drops, and also why the power plant temperature sensor may give incorrect readings, the engine temperature arrow floats while driving, etc.

Temperature sensor on Daewoo Nexia: where is the DTOZH located?

There are many different sensors in cars that provide information to the driver about speed, temperature, oil, pressure and much more. Regardless of the make of the car and the type of engine - 8 cl or 16, without a well-coordinated control system it is impossible to function properly.

It is no secret that the level of heating of a car engine directly affects its performance, and therefore the functioning of the entire vehicle system as a whole.

Two points help regulate the temperature level of the motor:

1. ventilation system;
2. coolant.

The quality of operation of the cooling system is monitored by sensors located in its area.

Daewoo Nexia has three detectors monitoring the heating state.

The coolant temperature sensor is designed to monitor the heat level of the coolant, allowing the system to determine the required richness level of the fuel mixture, as well as determine the need to activate the fans.

For models of different generations of Daewoo Nexia, the coolant temperature sensor is located in different places:

• for N150 - it is fixed near the ignition coils;
• on N100, under the ignition distributor;
• for cars running on F16D3 engines, the detector is located between the second and third cylinders.

Checking the DVT on a Daewoo Nexia is as easy as on any other simplest car - using a multimeter and a thermometer.

The detector is dismantled, connected to the device, switched to ohmmeter mode, and then lowered along with the thermometers into a container with heated coolant.

The obtained degrees and Ohms are compared with a table, on the basis of which conclusions are drawn about the performance of the device.

The second temperature device is a coolant temperature gauge analyzer. On the Daewoo Nexia, a temperature sensor of this type is located in the cylinder head (near the first of them), not far from the intake manifold. The serviceability of the device is checked in the same way as the DTOZH.

The third device that regulates engine operation is the intake air temperature detector. The sensor is located in the air filter housing of older Daewoo models, or in the air pipe of newer cars. This sensor is checked in the same way as the previous two.

The peculiarity of these devices is that if one of them fails, most likely there will be a need to check all three in turn, since the signs of their malfunction are generally the same:

• difficulty starting the car;
• excessive consumption of fuel;
• Unstable operation at idle.

What is a Rustle security sensor?

How to replace DTOZH on Daewoo Matiz?

The principle of replacing the device does not differ from the similar procedure for other models of this manufacturer, be it Daewoo Espero, Nexia, 8-valve or 16 cells. there is no fundamental difference. It is necessary to follow several general rules and know exactly where the device is located for this particular model:

№Useful information

• disconnect the wires from the device;
• unscrew the sensor;
• replace it with a new one;
• perform all the above manipulations in reverse order;
• Start the engine and check the functionality of the system.

Source: https://alertok.ru/oborudovanie/datchiki/gde-nahoditsya-datchik-temperatury-v-deu-neksiya.html

relays and fuses

Check the relay in strict accordance with the figure. If the relay appears to be in good condition, remove the main engine relay and check it according to the figure.

Between pairs of terminals 3-5 and 2-4, the ohmmeter should show a closed circuit. There should not be a closed circuit between pins 1 and 2. If voltage from the battery is applied to terminals 3 and 5, then there should be a closed circuit between terminals 1 and 2, and an open circuit between terminals 2 and 4.

If all the tested relays are in good working order, then the car should be submitted for diagnostics to the dealer's car service service or to a specialized workshop. It is not recommended to carry out further testing yourself due to the complexity and variety of circuits used in the vehicle.

Disconnect the battery from ground. Disconnect the connector on the fan motor. The air conditioner fan is located in front of the radiator and is secured on the right side using a plastic piston, indicated by an arrow.

The right arrow indicates the fan connector. On the left side, the air conditioner fan is secured with two bolts, one bolt for the hood lock pillar indicated by the arrow and one from the bottom. Access to the lower bolt is provided through a hole in the bumper.

Warning: Vehicles with air conditioning have two fans. Fan N2 is installed in front of the radiator, which is designed for additional cooling when the air conditioner is turned on.

The procedure for checking this fan and relay is exactly the same for fan N1. Drain some of the coolant to disconnect the upper radiator hose, see. Unscrew the two lower mounting bolts, then the two upper bolts are indicated by arrows and remove the casing assembly with the fan from the car, lifting the casing up.

Holding the fan by the blades, unscrew the impeller fastening nut and remove the washer, if any. Now we need to call the 87 wire that comes with the relay.

We find it and see that the low speed wire that comes from the fan does not match the wire that comes from the relay. We pin out the connector on the fan side, since there are only two wires there, it’s very convenient, and we mount it in the desired connector.

4.4. Fan and fan relay

We wait for the engine to warm up to 97 degrees, and voila, low speed started working, the temperature crept down. Now I’m happy as an elephant, I can rush to the South.

In general, it’s good for the engine, and for me, too. And my heart bleeds when the fan turns on at low degrees. The license plate light bulbs have burnt out.

Replacing the Deo Lanos Fan Sensor.

I didn’t think for a long time, I made a signet, well, I made scarves with LEDs. Three lights for one scarf for the eyes:

All sensors on Daewoo Nexia

The coolant temperature sensor receives the temperature of the coolant and sends data to the ECU to form the fuel-air mixture. The sensor signals regulate the fuel-air mixture, so if the sensor malfunctions, increased fuel consumption and difficulty starting the engine are possible, especially in winter. The Check Engine light comes on on the dashboard.

Location: Located under the ignition coils (Euro-3) and under the ignition distributor (Euro-2). On the F16D3 engine, it is located under the intake manifold between the first and second cylinders of the engine.

Coolant Temperature Gauge Sensor

The coolant temperature gauge sensor on the Nexia is used to display the antifreeze temperature on the dashboard. You can find out the exact readings of the sensor by connecting a diagnostic scanner to the ECU.

Location: The sensor is located under the intake manifold, in the area of ​​the first cylinder.

On some models, it is possible that the DTOZH and DTOZH are the same sensor.

Crankshaft position sensor (CPS)

The crankshaft position sensor on the Nexia determines the speed and position of the crankshaft. If the sensor fails, the engine will not be able to start or operate.

Location: The sensor is located at the crankshaft pulley opposite the toothed disk. on the F16D3 engine the sensor is located under the oil filter.

Camshaft position sensor (CPRV, phase sensor)

The DPRV sends a signal to the ECU about the position of the camshaft and the opening of the injectors for more efficient execution of the stroke.

Location: The camshaft position sensor on the F16D3 engine is located near the timing case at the top of the engine.

Throttle Position Sensor (TPS)

The throttle position sensor on the Nexia sends a signal to the ECU about the throttle position, controlling the air supply. Signs of a malfunction of the DZ position sensor - the Nexia will not respond to the gas pedal, the speed will randomly increase and jump regardless of your efforts to press the gas.

Stove repair and modification

Video: Instructions for removing the heater control unit (climate control unit) Daewoo nexia

How to remove the heater control unit (climate control unit) Daewoo nexia
Even a working Daewoo Nexia heater cannot fully heat the interior. Which is noticeable already at an outside temperature of -15°. You can improve the Daewoo Nexia stove by installing an additional mechanism - a water pump from a GAZelle car.

The choice fell on GAZelle for the following reasons:

1. Optimal price-quality ratio.
2. Power, efficiency based on heating cubic capacity.
3. Relatively long service life.

Installation sequence

1. We place the car within the perimeter of the repair area, take priority safety measures, fix the rear row of wheels;
2. Open the hood, drain the antifreeze from the system (the procedure is described above);
3. We cut the supply pipe coming from the radiator in half;
4. We connect the cut site with a pump, and fix the screed with metal clamps.
5. After physically installing the pump and fixing it, we supply power. The likely place of attachment is the air conditioner pipe with plastic ties. To prevent the pump from freezing when the air conditioner is active, we place a rubber layer.
6. The final stage: connecting the relay to supply current. It is most convenient to fix it to the contact block near the air duct. Plus, we start the car with a separate mechanical button in the area where the ignition switch is located. We attach the minus to the body.

Note to the driver. You can install the pump without draining the antifreeze from the system. We pre-clamp the incision site with zip ties to reduce pressure and prevent leakage.

The modification of the Daewoo Nexia stove is completed, we start the car, warm it up to an operating temperature of 45 - 60°, and activate the heater. Provided that the installation algorithm is followed and original parts are purchased, the service life of the pump is 50 – 60 thousand km.

Daewoo Nexia 2008. The smell of antifreeze in the cabin

Daewoo Nexia 2008. The smell of antifreeze in the cabin

Leak from expansion tank

As a rule, the cabin smells of coolant if it leaks from the expansion tank. In most cases, this malfunction is caused by long-term operation of the vehicle or a violation of the technical condition of the car.

But, no matter how surprising it may be, antifreeze leaks often occur on modern cars. The main reason for antifreeze leakage is wear of system components or manufacturing defects. Also, working fluid may leak if pipes or other components of the cooling system are incorrectly replaced.

Since the coolant tends to erode, the car owner may not notice a slight leak of the mixture. In this case, a malfunction of the car’s cooling system will be indicated by a foreign smell in the cabin. Visually, it is easier for the vehicle owner to detect a significant leak.

In this case, the liquid leaves noticeable stains on the system components. If antifreeze or antifreeze quickly leaves the expansion tank, this can be determined by the readings of the corresponding analyzers or when characteristic leaks appear.

When the fluid leaves the system to a small extent, you can feel a sweetish smell in the vehicle interior. In this case, it is necessary to promptly begin diagnosing the vehicle’s cooling system.

The heater or radiator is leaking

Often the reason is that the stove or its radiator is leaking. Since it has a complex design, it is recommended to replace it with a new one rather than make repairs.

Leakage can also occur due to loose connections between the pipes.

If it is not possible to change the heater radiator, then you can continue driving as is, but you should check the fluid level in the cooling system more often.

Diagnostics

First of all, it is necessary to conduct a visual diagnosis of the cooling system. During diagnostics, it is necessary to carefully check all conductors of the system for mechanical damage or leaks. If damaged conductors were found during the inspection, it is necessary to restore the tightness of the cooling system by replacing them.

Also, one of the most common malfunctions of the cooling system is coolant leakage into the engine crankcase. This malfunction can lead to quite serious consequences and significantly disrupt the function of the engine.

This malfunction can be identified by visually inspecting the oil tank cap. If coolant enters the crankcase, a white emulsion appears on the cover. If coolant leaks out, you may notice a formation under the car.

If the inside of the car smells like antifreeze, then coolant leaks directly into the interior. The smell of antifreeze in the cabin indicates a leak in the heater core.

If the radiator leaks, some of the coolant leaks directly into the passenger compartment and the driver of the vehicle may notice a characteristic sweet smell. Also, coolant can get under the gas distribution mechanism drive.

In this case, it is quite difficult to visually determine the leak, but by diagnosing the space under the timing belt, you can notice characteristic traces of moisture. As a rule, the cause of moisture formation under the timing belt is a faulty pump.

As you know, the combination of maintaining temperature conditions plays an important role in the proper and long-term functioning of the engine. If the cooling system malfunctions, the engine is subject to overheating and premature wear of the components.

During vehicle operation, the cooling system operates in difficult conditions. System components are constantly exposed to high pressure and temperature changes.

In this regard, the elements of the cooling system are subject to increased wear and require timely diagnostics and regular maintenance.

The smell of antifreeze in the cabin indicates a malfunction of the connecting hoses of the systems and the need for diagnostics. With prolonged use of the vehicle, the rubber components of the system wear out and often become unusable. If diagnostics have shown the maximum permissible wear of the system conductors, they must be replaced.

To secure the cooling system hoses, it is best to use special metal clamps, which are characterized by a long service life, reliability and do not allow leakage of the working mixture. In addition, it is necessary to pay attention to the condition of the radiator and, if necessary, restore its tightness or replace it.

If there is a coolant leak, the car engine is subject to increased wear. In this regard, if you do not pay attention to the condition of the cooling system in a timely manner, you can end up with a large number of engine repair costs.

Timely diagnostics and regular maintenance of the cooling part will allow you to remain confident in the reliability of the engine and increase the service life of its elements.

Danger to the body

You also need to remember that antifreeze is harmful to the body and toxic, and therefore, with a high concentration of vapors in the cabin, you can lose consciousness and create an emergency situation on the road. To prevent this from happening, it is recommended to eliminate all antifreeze leaks and stop using such a car unless absolutely necessary.

Source: https://zinref.ru/avtomobili/Daewoo/001_Daewoo_nexia_s_2008_goda_za_rulom/099.htm

Cooling system diagram

Let's look at what the Daewoo Nexia cooling system diagram looks like:

Elements of the DAEWOO NEXIA engine cooling system: 1-electric fan; 2-electric fan casing; 3.36-nuts; 4,7,9,10,12,13,15,17,18,20,27,29,32, 34,38 40,41,43,45,47-clamps;5,30,48,49,53 -bolts; 6-supply hose for heating the throttle assembly; 8-tee; 11-heater supply hose; 14-way hose; 16-outlet heater hose (the dotted line shows the shape of the hose when installing an automatic transmission); 19-outlet hose for heating the throttle assembly; 21-sensor for turning on the electric fan; 22-o-ring sensor; 23-thermostat housing; 24-o-ring thermostat cover; 25-thermostat; 26-water pump pipe; 28-outlet water pump hose; 31-connecting pipe; 33-fluid reservoir hose; 35 expansion tank; 37-expansion tank plug; 39-steam removal hose of the expansion tank; 42-radiator inlet hose; 44-radiator; 46-radiator outlet hose; 50-radiator mounting bracket; 51-upper radiator mounting pad; 52-electric air conditioning fan; 54-lower radiator mounting pad.

Temperature sensor Daewoo Nexia

The Daewoo Nexia has not one temperature sensor, but three. Each of them is responsible for different temperatures in certain parts of the engine.

Coolant temperature sensor

A temperature sensor is necessary to monitor the temperature of the coolant to maintain the optimal level of the air-fuel mixture. If this sensor malfunctions, the electronic engine control unit no longer receives correct information about the coolant.

As a rule, this makes the car “sore”, that is, it is difficult to start even at 0 temperatures. In addition, average fuel consumption will increase. In the event of a malfunction, it also happens that the ECU goes into emergency mode and the “CHECK ENGINE” lamp lights up on the instrument panel.

On new generation Daewoo Nexia cars (N150) this sensor is located under the ignition coils. On older Daewoo Nexia (N100) models with Euro-2 exhaust emissions, this sensor is located under the ignition distributor. On F16D3 engines there is a coolant temperature sensor between the first and second cylinders of the engine.

How can you check the sensor for its functionality? You need to check its resistance at different temperatures using a multimeter and a thermometer. The sensor readings should follow the table of optimal temperatures. As a rule, this table can be found either on the Internet or with a “smart” book for operating Daewoo Nexia.

Coolant temperature gauge sensor

This sensor is needed to display temperature information on the instrument panel via a pointer.

This sensor on Daewoo Nexia is located in the cylinder head (cylinder head) near the intake manifold, near the first cylinder.

This sensor is also tested for performance by resistance at different temperatures using a multimeter and thermometer. These readings must also correspond to the table of optimal temperatures.

Air temperature sensor entering the cylinders

Using this sensor, the electronic engine control unit monitors the intake air temperature to optimize the air-fuel mixture. If there is a malfunction, the car has difficulty starting and sometimes stalls when idling. In addition, the electronic control unit goes into emergency mode and the “CHECH ENGINE” lamp turns on.

This sensor is located in the air filter housing on old Daewoo Nexia. On new Nexias with the F16D3 engine it is located in the air supply pipe. To check its functionality, like the previous two sensors, it should be tested for resistance at different temperatures. Again, this will require a maltimer and a thermometer.

Source: https://grandrepairauto.ru/datchik-temperatury-daewoo-nexia.html

Analogs

Each time replacing an absolute pressure sensor with an original model from the manufacturer is quite expensive, and it is not possible to get it everywhere.

Table of original spare parts:

As an option, you can take advantage of offers from third-party manufacturers, which differ in price and sometimes in quality for the better.

Table of spare parts from third-party manufacturers:

Where is the Crankshaft Sensor on the Daewoo Nexia?

List of sensors on the Daewoo Nexia, their description and methods of checking functionality

Crankshaft position sensor (CPS)

Determines the position of the crankshaft and its rotation speed, and is also involved in determining misfires. If the sensor fails, engine operation is impossible.

Installation location: located at the crankshaft pulley opposite the reference (geared) disc. On the F16D3 engine, it is located in the cylinder block closer to the flywheel, under the oil filter.

Method for checking the sensor: disconnect the connector from the sensor, check the resistance with a multimeter by connecting it to pins 1 and 2 (numbers on the block) - the resistance should be 500-600 Ohms.

Camshaft position sensor (CPRV, phase sensor)

The ECU, based on sensor signals, determines the position of the camshaft to synchronize the moment of opening the injectors with the intake stroke in order to achieve better filling of the cylinder and its timely purging.

Installation location: installed behind the camshaft housing, next to the timing belt cover under the crankcase ventilation pipe. On the F16D3 engine, it is located in the cylinder head (cylinder head) between the camshafts near the timing belt housing.

Some solutions to the condensation problem

Before replacing a faulty sensor with a known working one, it is worth drying it well to remove condensate. The pipe going to the sensor also needs to get rid of moisture. It is possible that after these procedures the unit will continue to perform its normal operation correctly.

Silicone

Car owners call silicone one of the ways to combat the problem of condensation. It completely fills the body of the device, which prevents subsequent moisture from entering its parts.

The procedure for modifying the DBP itself is quite simple: the case is opened at the place of gluing. The insides are filled with silicone construction sealant. The closing lid is installed in place, and the entire structure is dried on a radiator or in a warm place for 24 hours.

Filter

Another method to avoid moisture getting inside the detector is to place a gasoline filter on the pressure pipe between it and the DBP itself. Water will collect inside and stop entering the sensor.

Change location

One of the most radical ways is to change the location of the pressure-determining unit. It is moved to a place where the device is “warm” during operation, regardless of the ambient temperature. To do this, other fasteners are often made and the pipe is extended.

Engine with sensor attached outside of standard location:

Idle speed control

To regulate idle speed, the Nexia engine has a special sensor-valve that regulates idle speed by opening or closing a small air channel through which air passes during engine operation at idle.

Signs of malfunction:

• The speed is XX;
• The engine stalls at idle;

Signs of breakdown

Symptoms of IAC malfunction:

• the engine does not idle. In this case, the idle speed may jump, freeze, and then return to normal again;
• the engine idles;
• there is no compensation for the increased load on the engine;
• Difficulty starting the engine. If pressing the gas makes starting easier, then this is a sure sign of an IAC malfunction;
• insufficient or no warm-up speeds are maintained;
• The car stalls at idle, when releasing the gas, or changing gears.