You have found information about the rear right door lock of a Chevrolet Niva - go ahead, we are waiting for you. Your personal assistant in DIY car repairs. How to repair a car yourself at home. We will help you with repairs and repair the car yourself. We know how to restore a car with minimal investment. I have attached video instructions.
Category: Do-it-yourself repairs
Laughter on topic: A drunken man barely squeezes into a very crowded bus. At the sight and smell of it, everyone turns away and is indignant: Why couldn’t you get on an empty bus? Answer: WELL GUYS, I CAN’T, I’M FALLING IN IT.
Published by Admin: at the request of Friedrich
Car owner criticism: Reliability. Dynamics. Originality.
Initially, a Chevrolet Niva is equipped with a central lock that can remotely control opening. For this purpose, each of the 5 doors has a special device - an actuator. It is responsible for removing the lock when receiving a signal from the alarm system.
But in practice, most problems with opening the rear door are not at all related to the operation of electronic components.
In 95% of cases the problem is related to mechanical parts. This can be either the lock itself or the rods located inside. In some cases, this may be due to the fact that the Chevrolet Niva door seal freezes on a recently washed car. But in this case it is easy to determine the source of the problem, so further we will consider situations in which the problem mainly arises with the operation of the lock.
The traction is broken.
Basically, the rod can bend if it was assembled incorrectly. The problem can also appear if the car is often used in off-road conditions and dirt gets into the cavity. This can happen if the plastic film peels off from the door frame. In this case, dust may accumulate inside it.
During movement, dust settles not only at the bottom of the cavity, but also on all components, including the levers. After the car gets caught in the rain or washed, all the dust turns into dirt, firmly settling on the insides. As it accumulates, it leads to a decrease in the lock stroke, and at the moment when the passenger tries to open the door, great efforts have to be made. Because of this, the rod begins to bend over time. And at some point its progress is not enough to unlock it. Even after it is straightened, the integrity of the system will already be compromised and components will need to be replaced.
In this situation, complete replacement of the door lock components, or dismantling, lubricating all components and cleaning the lock can help. This must be done as early as possible, even if the slightest problem arises, so that the Niva Chevrolet door handle does not become completely blocked.
The rear door device is quite simple and does not contain complex mechanisms. The lock used is the same as on most AvtoVAZ models. The only difference is that its locking and unlocking is actuated by an actuator. Sometimes they fail and then it becomes necessary to open them manually.
Handle selection
Most analogues are made of plastic or metal; the shape of the handle can resemble a hook or be in the form of a flat thin panel.
The advantage of the budget option is that the driver does not need to buy a kit; he can choose one part and reinstall it himself; its price starts from 90 rubles. a piece. The disadvantages include a minimal service life, thin metal is used for fasteners, and the brackets bend quickly.
Experts recommend choosing a new class of repair kits - Euro handles for the Niva or using original factory components, which, due to the thickness of the metal, begin to fail after 3 years of operation. Euro pens are made of metal or fiberglass; a set includes three or five pieces, costing from 600 rubles. for a set of 3 units.
Spring failure.
Basically, the problem of lock failure lies in the fact that the tendrils of the spring break off, which loads the rear door lock lever. This occurs due to the use of low-quality steel in the production of the part or violations of operating conditions. In any case, such a breakdown leads to the fact that one of the lock levers begins to move in a random direction and it is impossible to predict whether the lock will open at the moment or not. There are even situations when the rear door lock of a Niva Chevrolet can open while driving. Therefore, you should not wait for unpleasant situations to arise and carry out repairs immediately if any problems arise with the lock.
Causes of malfunction
Experienced drivers, when buying a Niva, loosen the pull rods of the outer handle and additionally lubricate the movable parts. This allows you to increase the service life of the part up to 5 years. At the same time, the door will open and close smoothly, without knocking, and the lock mechanism will be stable.
If this is not done, after a year drivers will notice that a gap begins to form between the handle and the door, the element dangles, but the opening/closing process occurs smoothly. The reason is that the inner bracket or bracket that connects the inside of the handle and the door is sagging. Reasons for failure:
Regardless of the causes of the malfunction, during repairs it is necessary to remove the inner door trim and remove the locking mechanism from the car. Despite their simple design, door handles are not repaired, but replaced. In rare cases, when there is no suitable color of the upper adjustment on the market, the internal mechanism is reinstalled into the old cover.
Castle repair.
Before starting repairs, the door trim on the Niva Chevrolet must be removed. The door card can be removed even after the door is completely locked.
- After this, the window lifter handle is removed. To do this, use a flat-head screwdriver to bend it and pull the latch up.
- The decorative cover of the handle is removed. It is held on by latches; to disconnect it, you only need to pull it towards yourself with force, after prying it off with a flat-head screwdriver.
- The door card itself is held on pistons in the center, top and bottom of the door. They can also be snapped off by prying them off with a screwdriver.
Chevrolet Niva 2011, 80 l. With. — self-repair
We unscrew it COUNTER-clockwise, adjust the chisel so that the angle of inclination is sharper, so that the force of the blow goes sideways, and not directly into the head.
And we try to make a notch on the head of the breakaway bolt with a chisel; the most important thing here is to remove the bolt from the thread so that, once stuck, it begins to move.
In this way, moving the chisel, punching mm by mm, we turn the bolt to the left until it loosens. Then you can unscrew it with your fingers or pliers if it still doesn’t turn well.
10.11.2 Removing and installing the front door lock
This is what such a bolt looks like, it goes to the cone. The most difficult one will be the one on the top right, it will be very difficult to crawl there, and then try to make a notch with a chisel, and then use a long flat screwdriver to rest against this notch and gently tap.
By the way, we also shot a video on the third bolt, inspired by the success. Take a look, I think it will become clear how to unscrew them. Sorry, my friend’s hands are shaking, but the essence is still clear, it is described above. Having unscrewed the bolts, you have practically won, now you can replace the lock itself without any problems, everything is quite simple here, you disconnect 4 wires - red, blue, pink and black.
We repeat this several times until the bolt is loosened and can be unscrewed using pliers. We continue in the same way with other fasteners.
Some difficulties may arise with the right upper mount, since access to it is relatively limited.
After the bolts are unscrewed, you can disconnect the wires from the lock. You can also now unscrew the bolts that hold the lock itself. They are located on the inside of the bracket.
Niva Chevrolet door lock repair part 1
You can unscrew them using a Phillips screwdriver. When the lock itself is removed, you can take out the cylinder and inspect it for damage.
In normal condition it should look like the photo below. Stoppers diverge in all directions, limiting the rotation of the larva.
After the key is inserted, they retract and do not interfere with rotation. But if some pins are damaged and are in the way, you can try to treat them with natfil. Also, when examining the larva, you can notice burrs on the side.
They can be formed by a pressure pin. This problem can occur in older cars.
In this case, the own travel will be limited and the key may be blocked in position I. When processing this area with natfil, it is necessary to make the angle as sharp as possible. This procedure can save you money on buying a new lock.
Unlocking the lock.
To open a locked door, you need to pull the plastic tongue of the actuator. You can also move the lock latch itself. After it is unlocked, you can remove the lock, but you must disconnect the battery terminals. The lock itself is held in place with screws at the end.
After they are unscrewed, you need to use a screwdriver to disconnect the rods and disconnect the terminals. Then you can pull the lock out of the case. Once it is pulled out, it is much easier to carry out an external inspection to determine the exact cause of the problem. If in doubt, it is better to immediately replace the part with a new one that will definitely be in working order.
Back door to the field
Design features
The Niva's back door, like the others, is connected to the central alarm unit. The door opening process is controlled by an actuator. The equipment removes the lock when receiving a corresponding signal from the car’s security system.
In 90% of cases, when the door does not open either from the outside or from the inside, this indicates a breakdown of the mechanical part. If the trunk does not open, the problem may be a broken spring in the locking mechanism.
In winter, it sometimes happens that after washing the car, water remains in the rubber seals of the doorway, it quickly freezes and prevents it from opening. Car mechanics identify two main failures in the mechanical part of the lock:
- deformation of the lock rod;
- a malfunction of the latching pawl mechanism, when the handle turns, but the lock does not open from the inside.
Why doesn't the back door of a Niva Chevrolet open?
The Chevrolet Niva is equipped with a standard central lock; therefore, each of the five doors has an actuator that unlocks the lock when the central device is activated.
However, as practice shows, electronics are not at all involved in problems with locks.
In 99% of cases, the problem is still in the mechanics, either in the lock itself, or in damage to the rods. We will not consider cases where the door freezes to the body; this is an exception, but most often the owners are let down by the lock.
Broken lock rod (rod is bent)
The rear door lock rod is marked with an arrow.
There are often cases when the lock rods bend not due to improper assembly (although this is possible), but due to the banal entry of dirt into the door cavity.
It all happens something like this: the protective polyethylene film can peel off from the door frame in some places, and because of this, dust gets into the door cavity. Everything would be fine, but dust accumulates not only at the bottom of the cavity, but also on the levers of the lock itself. One fine moment we go to the car wash or get caught in a heavy downpour, the dust turns into dirt and limits the working strokes of the lock.
Eliminating backlash
The play of the handles on the door of an SUV is associated with the design of the fasteners. Inside there is a silumin tongue or bracket on which the second fastening screw is fixed. In the process of opening the door, the thread of the second screw becomes loose. The next common cause of backlash is that the silumin bracket comes off or bends. The repair procedure in this case is as follows:
If the bracket is bent, it is enough to straighten the tongue and screw the handle back; when the bushing is broken off, many drivers do not look for a replacement; they glue the part with superglue. The effect of this work will last 2-3 months.
For rear doors, the play of the handle is removed in a similar way; you need to tighten the screws or replace the metal insert. There is a difference in the procedure for dismantling the trim; it is necessary to remove the window lifter retaining ring when removing the door card.
You can repair a door handle for a Niva yourself in 30 minutes if you follow the work procedure. How long the handle will last depends only on the quality of the selected part.
Source
Removing the rear door lock on a Chevrolet Niva for repairs
You will have to remove the rear door trim.
Even if the door no longer opens, you can easily get to the lock and unlock it, and then remove it and repair it. This is done like this:
- The rear door door card is removed even when the door is locked. First, unscrew the two screws from the bottom of the door card.
- Remove the window handle by bending the handle with a flat screwdriver and pulling the latch upward.
- Unscrew the screw securing the decorative trim under the door handle, pulling the handle towards you.
- The door card is held on by six pistons - two at the bottom, two at the center and two at the top. They snap off if you pry them with a long screwdriver. The door card can now be removed.
The decorative card has been removed.
Video about removing the lock on a Niva Chevrolet
Opening the door
The lock can be unlocked by pulling the plastic tab of the actuator or another lever; using a long screwdriver, you can move the lock latch itself.
When the door has opened, you can remove the lock, but before that you need to remove the negative terminal from the battery. The lock is held on by fastening screws at the end of the door.
Trunk door lock.
After removing them with a long screwdriver, you need to remove the drive rods, disconnect the terminal blocks and remove the lock from the door cavity along with the actuator. After this, when the lock is in hand, the reason will become visible. In extreme cases, the lock can be replaced. Good luck to everyone and obedient locks!
Trying to open the door with the handle, we make more and more effort, as a result of which the rod bends.
Tools and Supplies
To get to the handle fastening bolts, it is necessary to dismantle the door trim. During the renovation process, removal and installation of cladding remain the most labor-intensive operations. A plastic film is installed under the door card, which protects the insides from dust.
It is recommended not to remove the boot completely; just peel off the upper left corner and unscrew the film to the middle.
For the work you will need the following materials and tools:
Removing the limit switch from the Chevy Niva door lock
This way we remove the glass frame. Next, unscrew the filler plug and remove the neck trim of the tailgate glass washer reservoir. Carefully pry up the upholstery with a screwdriver and remove the pistons. During work there is a danger of damaging the painted surface.
There will not be a serious dent, but a scratch may still remain, so it is recommended to wrap the end of the screwdriver with insulating tape. The upholstery is put back in place in the reverse order.
If the pistons are damaged, they must be replaced with new ones. Let's move on to the tailgate lock drive.
The same screwdriver will come in handy during the process. The rear door door card is removed even when the door is locked. First, unscrew the two screws from the bottom of the door card. Remove the window handle by bending the handle with a flat screwdriver and pulling the latch upward.
Replacing the lock cylinder on a Chevrolet Niva
Unscrew the screw securing the decorative trim under the door handle, pulling the handle towards you. The door card is held on by six pistons - two at the bottom, two at the center and two at the top. They snap off if you pry them with a long screwdriver.
The door card can now be removed. Video about removing the lock on a Niva Chevrolet Opening the door The lock can be unlocked by pulling the plastic tongue of the actuator or another lever, using a long screwdriver, you can move the lock latch itself. When the door has opened, you can remove the lock, but before that you need to remove the negative terminal from the battery.
The lock is held on by fastening screws at the end of the door. After removing them with a long screwdriver, you need to remove the drive rods, disconnect the terminal blocks and remove the lock from the door cavity along with the actuator. After this, when the lock is in hand, the reason will become visible. In extreme cases, the lock can be replaced.
Eliminating play in Shevik door handles
The handles on the doors had been dangling for a long time, but when yesterday I saw how far the right front handle had moved, I decided to go through them all.
First, let's disassemble the front door. I already wrote how to do this in the topic about installing front tweeters. Next, we bend the polyethylene to access the internal fastening of the handle:
I thought that it was he who had loosened, but it turned out to be properly tightened. Therefore, the handle had to be disassembled further)) The second screw securing the handle on the front door is located here:
It is not necessary to remove the handle, just put it in this position:
It was this screw in the front of the handle that was loosened:
Just in case, I unscrewed the screw and saw that the silumin tongue had been broken off. To calm things down, I glued it with superglue)) Although I understand that this won’t last long:
If the tongue is broken, then the front part of the handle is held only by a self-tapping screw. By the way, they were broken off on all the doors)) After assembly, the play disappeared.
