DIY niva chevrolet heater engine repair

In detail: do-it-yourself repair of a Niva Chevrolet heater engine from a real master for the site my.housecope.com.

While enjoying comfortable trips in their own cars, some owners overly dull their vigilance, not noticing the "news" sent by the "iron friend". It is with the help of their vehicle that the vehicle seeks to notify the owner of a technical malfunction. Experienced car owners strongly recommend not just starting the engine, but listening to how it works, not just turning on the stove and expecting the flow of warm air, but again listening if there are any third-party sounds. If you notice alarming "signals", we recommend that you roll up your sleeves and fix the problems that have arisen, without waiting for the moment when they increase a hundredfold.

We would like to note that the owners of Chevrolet Niva often have to deal with a situation when problems arise in the heater electric motor. In this case, nothing can be done, you just need to visit a car shop, buy a new stove fan and replace it. If you have not encountered such a problem before, of course, it is unlikely that you already have a plan in your head for how the heater fan should be replaced. Most likely, you hardly even know where the failed stove motor is located in your Chevrolet Niva. For this reason, we are ready to take a little patronage over you and equip you with the necessary portion of technical knowledge.

So, if there is an urgent need to replace the stove motor, we recommend that you hurry with the repair, without waiting for the onset of frost. Believe me, it is quite uncomfortable to ride in a vehicle in which the heating system does not function. In addition, in severe frosts, such trips are still extremely unsafe, since the lack of heat does not allow the ice concentrated on the windows to thaw. Frozen glass restricts the driver's visibility of the roadway, respectively, provoking emergency situations.

Video (click to play).

So, take a new fan in your hands and check the quality of rotation of the blades. If you have not purchased it yet, we recommend that you give preference to the model with bearings, of course, if the car dealership offers you an expanded range of heaters suitable for your Chevrolet Niva.

Now that you have already prepared for the direct replacement, we recommend that you familiarize yourself with the algorithm of actions. By the way, on some forums you can find advice from car owners, which indicate the need to completely remove the entire panel. On other forums, you can easily find an alternative opinion, which we also adhere to. You can dismantle the old stove fan on the Niva, and then install the new motor in the same way without having to completely dismantle the panel. It is quite possible to get by with the removal of the glove compartment and air duct. Do not neglect one more of our advice. Purchase a new cabin filter in advance. You will not incur serious financial costs, but at the same time you will facilitate the work of the heater, and also exclude the emergence of an urgent need to replace a dirty filter in the near future.

Unscrew all the bolts holding the glove compartment, remove it, then remove the cabin filter. After that, you will find already a fan that you need to dismantle and then change. You will find a latch on the impeller, we advise you to press it, and then unscrew the three screws that fix the electric motor directly.We recommend that you have patience and endurance, since these actions will not be easy for you. It is very inconvenient to get to the places where these screws are located. If you have a screwdriver with a small handle, then it will be more profitable for you to use them directly.

As soon as you manage to unscrew the screws, the fan will immediately begin to slide. You need to hold it, but at the same time swing it slightly in different directions, which will pull it off the shaft. As soon as it is in your hands, consider that you have already done half of the work.

We are now setting you up for the preparatory work prior to installing a new fan. Examine the motor carefully. During such a visual inspection, you can easily find holes on the surface of the impeller. Pull a wire with a thin section through them, then fix it in the shaft where the motor should be placed. Make sure that the impeller “stays” correctly. In particular, the groove located on its surface must fit into the pin on the motor shaft. In addition, the impeller must be perpendicular to the axis of your vehicle.

The turn has come to install a new fan. We recommend to lubricate it, and only then subject it to installation. By the way, this procedure is also quite complicated due to the fact that although all the actions are clear, they are inconvenient to perform. Twist, twist your new fan, do whatever you want, as you like, only the electric motor has to be in the right place. Once you've made sure you've actually positioned the fan correctly, you can start securing it by tightening a few screws securely. Now don't forget that you have a wire connected. Of course, the moment has already come when you no longer need it. Get to it through the engine compartment, bite off and remove it. The last final step is connecting the pipes. Now that you have done everything that we recommended you so diligently, you can check the result of your work. Start the engine, warm it up, and then observe how well your stove, as well as the fan, began to work.

So, the work associated with replacing the fan is not so much difficult as it is extremely inconvenient. However, if you love your car, you are determined to do everything personally with your own hands, then your replacement will be carried out as successfully as possible. Be sure to just strictly follow the algorithm we have proposed.

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A breakdown of a stove fan on a Chevrolet Niva is perhaps the worst thing that can happen to a driver who is in a thirty-degree frost far from home. However, this turn of events can be avoided. The main thing is to pay attention to the characteristic signs in time, indicating that the stove fan will soon fail. And then you can replace the device yourself without putting yourself at risk of frostbite.

The heater fan is located in a special niche under the cabin filter, just below the windshield of the car. Under its impeller there is a heater electric motor connected to the on-board power supply and to the car's safety block.

The impeller of the Chevrolet Niva heater fan is located under the cabin filter and is marked with the number 15

If the owner of the Chevrolet Niva decided to replace the stove fan, then there are two ways to remove it: through the interior of the car, partially disassembling the dashboard, or through the opening of the cabin filter (but before that you have to remove the filter itself, of course). The second method will be considered below, since it is considered the least time-consuming and even a novice driver can use it.

There are several typical signs that a driver can tell if there is something wrong with the fan. Here they are:

As mentioned above, almost any malfunction of the electric motor of the stove disables fuse F18. It is installed in a safety block to the left of the steering column, just above the driver's left knee. The unit is covered by a plastic console, so you need a Phillips screwdriver to work.

The plastic bracket of the fuse box is held in place by two self-tapping screws. They are unscrewed with a Phillips screwdriver. Two self-tapping screws on the Chevrolet Niva panel are unscrewed using a Phillips screwdriver
Now the console is gently bent down until its lower edge disengages (the edge of the console is held by a plastic latch and a characteristic click will be heard when it is opened). Plastic console "Chevrolet Niva" folds down until it clicks
After removing the console, the fuse F18 is removed from the socket. Its location is shown in the photo below. Fuse F18 in the Chevrolet Niva block is located in the lower right corner
The fuse is being inspected. If it fails, then the insert in its body will be torn and melted. The fuse body itself will most likely also be melted and traces of soot will be visible on it. The F18 fuse on the Chevrolet Niva burned out and melted
The blown fuse is replaced with a new one, the console is returned to its place.

Before starting work, you need to stock up on everything you need. Here's what we need:

hex keys, set;
Phillips screwdriver;
new heater fan.

The hood of the Chevrolet Niva opens. Near the windshield there is a niche with a cabin filter installed in it, which is covered with a plastic cover with latches. They are opened manually, the cover is removed, then the cabin filter is also removed. Access to the kiln fan impeller is opened. After removing the cover from the Chevrolet Niva cabin filter, access to the fan impeller opens
There is a bracket on the impeller. Using a Phillips screwdriver, the bolt that holds it is loosened, the bracket moves to the side and is removed. The mounting bracket on the Chevrolet Niva impeller moves to the side
The car interior opens. With the same Phillips screwdriver, the screws that hold the glove compartment panel are unscrewed. The glove compartment is removable. Now there is access to the heater electric motor. The Chevrolet Niva fan motor can be accessed by removing the glove compartment
The electric motor is supported by three self-tapping screws. They are unscrewed with a 10 hexagon. The fan motor of the "Chevrolet Niva" is supported by three self-tapping screws
After unscrewing the last self-tapping screw, the electric motor is carefully lowered (no problems should arise, since the mounting bracket has already been removed from the impeller). Chevrolet Niva fan motor removed through the glove compartment
When the electric motor is removed, the fan impeller is completely free and can be removed through the cabin filter niche. The impeller of the "Chevrolet Niva" heating fan is removed through the cabin filter niche
The old impeller is replaced with a new one, then all assemblies are assembled in reverse order.

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

Replacing a broken fan on a Chevrolet Niva is not that difficult. Even a novice car enthusiast who has at least once held a Phillips screwdriver 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.

In order to provide a comfortable atmosphere in the cabin of any car, including the Chevrolet Niva, an air heating and cooling system is provided. The manufacturer took care of this and equipped the car with a stove motor, specifically an electric motor, an impeller and a shaft fitted to it.

Video about replacing the stove motor on a Chevrolet Niva:

But sometimes it happens that this miniature structure breaks down, ceases to fulfill its intended purpose and needs to be replaced. In this article, we will analyze in detail how to replace the stove motor on a Chevrolet Niva, as well as how to service it if necessary.

The stove motor is not easy to reach!Before proceeding with the dismantling of the stove, we prepare all the necessary tools and pay attention to the fact that the key is not inserted into the ignition lock.First of all, turn off the negative terminal. This is necessary in order to de-energize the circuit and protect yourself from a short circuit.In order to make it easier to dismantle the stove motor, the manufacturer recommends dismantling the entire dashboard, along with the dashboard, wiring and other fasteners, followed by their dismantling and removal from the passenger compartment. However, we consider this method too long and not rational, because it is much easier and easier to dismantle the motor just by looking from below.In the production of dismantling, we observe accuracy.

We remove the air duct on the right side, and the power plug on the motor housing itself.

Next, using a Phillips screwdriver, unscrew the three self-tapping screws connecting the motor to the impeller.

We put the loosened screws aside so as not to lose.Sturdy screwdrivers are required to carry out such work.All bolts are marked with arrows.In order for the impeller to come off better from the seat, we shake it from side to side.We inspect the motor and impeller for damage.Depending on the presence of certain malfunctions, the stove motor may need:

Cleaning and blowing the impeller from dirt and dust.

Lubricate all moving parts to avoid heat build-up and excessive friction.

Replacement of power wires or rubber tube.

In order to diagnose the condition of the motor, it is enough just to bring its terminals (red and black wires directly to the battery - approx.). And if the motor is running, it will turn on at maximum power. Image - Do-it-yourself Niva Chevrolet heater engine repair

If you can see that the motor is crookedly dressed, then remove it from the impeller with a screwdriver.

After all the repair work has been done, inspect the duct itself for dirt and other foreign objects, ensure they are cleaned.
Further, when you install a repaired or a new motor, tighten all the bolts by analogy with removal, ensure the most secure fixation of all terminals, pipes and connecting bolts.
It is also recommended to replace the cabin filter, and if, after connecting the battery terminal and turning on the ignition, the engine emits "buzzing" sounds, you have carried out the installation correctly.

On Chevrolet Niva cars, the stove is turned on from the inside of the car, using a regulator located on the dashboard.

It has four latching positions, one position is responsible for shutdown, and the rest for the air flow rate. Therefore, if, when it is turned on, no air blowing occurs, or extraneous sounds are heard, this will mean that the device requires at least maintenance.

The required regulator is marked with a marker.

The main reasons why the stove motor fails are the following:

There is no power to the device ... This may be facilitated by the lack of contacts or a problem with the battery.
There is damage to motor wires due to their location in a niche, they can be prone to chafing.
Fuse blown ... This could happen if a current of the highest magnitude from the standard passed through the circuit. It is in the 25A standard. Number F18.

The fuse for the stove motor is indicated by an arrow.

In any of the above cases, in order to understand what happened to the motor, it is necessary to dismantle it.

I read scary stories about removing the front panel for lubricating / replacing the heater fan. I decided to try it through the glove compartment.Experienced stories about this removal / installation method were vague and incomplete. I could not understand in any way what was interfering with the fan. Having unscrewed a bunch of different plastics, this picture was opened.
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Everything else is not difficult and basically comes down to working with a screwdriver.

In parallel, the procedure was combined with replacing the cabin air filter (on which it will be great to blow in the legs in winter or not) and cleansing the insides of leaves and other nasty things.

After the release of all the fixed elements, it turned out that something was preventing the fan from being removed by a thick-thick layer of noise insulation.
He mercilessly cut it in the right place in the form of the letter "P" and bent it back.
Further, the motor with a fan fell out into the cabin after a slight finger pressure.

The released unit was sent for flushing and lubrication (by the way, there were no traces of factory samzka found AT ALL! Dry and clean.)
I wanted to lubricate it with a practical graphite grease just designed for such unfortunate sliding bearings. But I was afraid that it could get on the conductive parts of the engine - the graphite conducts current. Lubricated with love and tenderness with a solid layer of Litola-24 (I did not find anything else in the garage).

I assembled everything in the reverse order, straightened the soundproofing and sealed the surgical incision with tape. The whole procedure with intermediate tea took about 1.5 hours of leisurely work in a warm garage.
Included. Oh music! The fan even became quieter, not to mention the disappearance of the high-pitched howl.

The heater fan does not affect the driving performance of the vehicle. However, experienced drivers know how important it is, especially during the cold season. In the cabin, the temperature drops sharply, the windows freeze, and movement becomes impossible. Replacing the interior heater fan with your own hands is quite simple.

On a Niva Chevrolet car, the stove fan is located in the engine compartment under the cabin filter, slightly below the windshield. A motor is installed under the impeller, which is connected through the fuse box to the on-board network of the machine.

Causes of a heater fan malfunction

In general, it is not difficult to understand when to change the heater. It is enough just to pay attention to whether it performs its direct function - heating. If not or weakly, then this indicates that the device needs to be either repaired or changed.This happens often due to the fact that car owners forget to replace filters in a timely manner. It also happens that a heater malfunction is associated with a long service life. Among other things, the heater may not work for the following reasons:

lack of battery power;
fuse problems;
not included ignition;
the preliminary resistance is defective.

Read also: DIY Fiolent router repair

All these problems can be easily solved if you know a little about mechanics. If the heater is not helped by any repair work, this means that its service life has expired, that is, it needs to be replaced.

Many people ask the question: replacement or repair of the fan of the Niva Chevrolet stove can occur through the glove compartment. Of course, repairs can. However, the replacement can be done in other, easier ways. First you need to figure out how to remove the heater. First you need to disconnect the negative on the battery. Further, the scheme of actions is as follows:

you first need to remove the dashboard from the passenger compartment;
then you need to disconnect the connector on the motor;
if the previous action fails, then the board should be replaced;
then you need to squeeze the locking ears with a screwdriver;
turn the heater case;
bring the motor out to the middle of the panel and remove it;
then you need to check the device for damage.

If the heater is worn out and needs to be replaced, then the process of installing a new unit will consist of the following stages:

The backplane is first screwed onto the new device.
Then they insert the motor into place and turn it well to the left.
When it is in the hole, it must be locked so that it does not move.
After that, you need to connect the wires to the bar, and the pipes to the stove.
Next, you need to check how the motor functions with the ignition on.

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With air conditioning or

even a polishing motorist is able to cope with a heater. It is enough just to know how the parts are arranged and what they are connected to. Then you can start to work in sequence. The main thing is not to rush, but to act harmoniously and accurately.

Recently, it is necessary to use the heater in the passenger compartment of a Chevrolet Niva more and more often, because it becomes cold outside. Everything was fine until recently - the electric motor of the stove began to screech. The howl is not very strong, but still annoying. I bought a new electric motor and took up repairs over the weekend. I used to have an old Mercedes, I also repaired it myself, but then it became so outdated that I simply took it for disassembly.

Since I had no experience in this matter, I read the information on the Internet before starting the replacement. I did not find detailed information, everything is written somehow vaguely, not specifically. I will not focus on disassembling the glove compartment and the plastic insert under the windshield, this is written in great detail in the operating instructions. Dismantled the glove compartment, removed the cabin filter, got to the stove fan.

We press the latch on the impeller, then we climb under the dashboard and unscrew the three screws securing the electric motor. There is very little space here, so I recommend stocking up on a short Phillips screwdriver in advance to save your nerve cells. After unscrewing, the electric motor slides under the hood. We grab the impeller, begin to move it back and forth and gradually pull it off the shaft. Well, the first stage has been successfully completed.

Next, you need to prepare the impeller for installation. There are already holes on the body, we put a thin wire there and fix it in the shaft of the electric fan.Keep in mind that the impeller must be positioned so that the groove inside it fits into the pin on the motor shaft, and it must also be perpendicular to the axis of the machine.

We take a new electric motor, thoroughly lubricate its axle with special grease and install it in its original place. It is also not easy to install, you will have to twist, twirl the ED so that it enters where it is necessary. Install, fix, connect. Then we climb into the engine compartment, bite off the wire with side cutters and the impeller at this moment should exactly sit on the shaft. Do not forget to connect the pipe through which warm air is supplied to the passenger compartment. This completes the work, the unpleasant hum has been successfully eliminated.

Heating system device on Chevy Niva

Heating and ventilation system for the Niva Chevrolet body: 1 - ventilation duct, 2 - windshield heating air duct, 3 - intermediate housing, 4 - intermediate air duct, 5 - air intake filter housing, 6 - heating system fan, 7 - central nozzle for cabin ventilation, 8 - trim panel for control levers, 9 - front air duct for heating the passenger compartment, 10 - rear air duct for heating the passenger compartment, 11 - air duct for heating the legs, 12 - heater assembly, 13 - side nozzle.

Heater parts: 1 - heater radiator, 2 - left heater casing, 3 - heater flap control lever, 4 - intermediate lever, 5 - screw, 6 - levers sector, 7 - air distributor flap drive lever, 8 - heater control flap, 9 - heater hoses , 10 - clamp, 11 - hose shield, 12 - bracket, 13 - air distributor flap, 14 - seal, 15 - right heater casing, 16 - air duct for heating the passenger's feet, 17 - radiator gasket.

To dismantle or replace the heater radiator for a Niva Chevrolet with air conditioning, you will need flat and Phillips screwdrivers. Disconnect the wire from the "minus" terminal of the storage battery, remove the instrument panel.

Pulling towards you, remove the heater control handle

Recirculation control handle

Heater control levers panel trim. Remove the screws securing the bracket for the heater control levers

Remove the arm panel illumination lamps

Disconnect the wiring harness block

Remove the screws of the tie rods fastening brackets and disconnect the tie rods from the heater flap levers

Remove the screw of the retaining bracket of the recirculation damper actuator

Remove the arm bracket and disconnect the harness block from the heater blower switch

Remove the screws of the tie rods fastening brackets and disconnect the tie rods

Remove the heater fan switch

Remove the screws securing the heater to the instrument panel cross member. The Niva Chevrolet heater is in your hands. Installation takes place in reverse order.

Below is the material on the answer to how to change the stove radiator on a Chevrolet Niva. If coolant leaks from the heater, then the radiator is leaking and must be replaced. To replace the heater radiator for a Chevrolet Niva with air conditioning, you will need a screwdriver.

Remove the glove box and windscreen trim, drain the engine cooling system.

Remove the outside air filter

Remove the screws securing the filter housing

Remove the screws securing the fan housing

Remove the screws of the heater mounting bracket

Remove the passenger foot heating duct

Unfold the heater bracket

Remove the intermediate air duct

Remove the screws that secure the heater radiator

Loosen the clamps on the radiator inlet and outlet hoses and remove the hose and remove the heater radiator from the casing.

Install the heater radiator and all removed parts in the reverse order of removal and fill the engine cooling system with fluid.

Before starting work, disconnect the negative terminal from the battery

Remove the dashboard together with the heater

Disconnect the heater blower fan harness connector

Remove the two screws securing the air box

Remove the box assembly with the electric fan

Remove the heater control levers panel trim

Remove the screws for the tie rods

Remove the screw of the retaining bracket of the recirculation damper actuator

Remove the arm bracket and disconnect the harness block from the heater blower switch

Remove the screws of the tie rods fastening brackets and disconnect the tie rods

Unscrew the plastic nut securing the heater fan switch and remove the switch. After the operations done, the heater motor is removed. Installing a new stove fan on a Chevrolet Niva is carried out in the reverse order according to the instructions above.

You shouldn't have removed the impeller ..
knocked down the balance of the factory.

🙂 Do you think she is there? With such imbalances of the cardan shafts, the impeller balancing can be hammered

Yeah, the balance weights were like the old ones
and on a new engine.
Maybe it is not so high quality and made, but if you knock down this one too, then the bearing life will become even less and the noise will be more: mocking:

Strange .. And what did you bet ?? and how much did you buy, if not a secret.
I set myself Luzar. Universal for tens and shniv.
Decently assembled, in a beautiful box. I bought it for 900.
On the market I saw my own for 1200. The hand did not go up to buy: mocking:
SVK, you should have seen the "new" - it is all in burrs, and not a hint of some kind of balancers.

Maybe this is a way of balancing.
Do not attach weights, but bite off the pieces: rofl:

ayfred, 🙂 yeah, I also wanted to do that, but in general, my hand did not rise to shred the Shumka, so the above exercises were done: rofl:

Not so much shredded: rofl :. I made a 5 * 3 cm cut with a scalpel or a knife on paper, and back a drop of glue and everything is ok, you won’t find fault. Well, if 0.02 dcibels are added, you simply won't notice: rofl :!

Lyoyoha, cool. +1
My stove is noisy, it sounds like “air” is it possible to make Shevik's stove noiseless in principle. Well, at least for a deuce - they ate rustling. A?
And then why do Shumkov, if the stove does not know how to work quietly.

The question is how to make the stove work silently ?!

All the work took me 3 hours, maybe a little more. Now I enjoy the silence and even powerful flow of warm air: smile :.

Video (click to play).

Good day. There is a silver lining. They drove a car with a faulty heater engine, but the panel is not like everyone else's, well, I thought to do it as expected, but my back caught me. I took and pulled out the old engine (having previously unscrewed three screws) is still unusable. It turned out with a slight deformation of the impeller. I tried a new impeller in terms of elasticity - the same as the old one. I glued the seal around on a new ED and installed it. Works great at all speeds. Time spent on everything 30 minutes with phone calls. He pulled out the “booty” in front, but installed it with the impeller forward.

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