Chevrolet Niva thermostat at what temperature should it operate

What is a thermostat for?

The thermostat is necessary to maintain the coolant temperature within the operating range. In simple words, a thermostat is a valve that shuts off and opens the flow of coolant through the cooling radiator.

The operating temperature of the engine is from 80 to 95 degrees, this temperature is considered normal, and a working thermostat maintains exactly this coolant temperature. When the thermocouple is faulty, the temperature becomes less or much more than expected, which can even lead to engine failure.

Symptoms of a problem

You can judge whether the thermostat is malfunctioning by finding signs of a malfunction in your car, such as insufficient coolant temperature, that is, when driving on the highway or in the cold season, the antifreeze temperature begins to drop rapidly or does not rise to operating temperature at all.

• The engine does not heat up to operating temperature;
• The engine overheats and constantly boils;
• Insufficient heating of the internal combustion engine during the cold season (cold air blows from the stove);

It should be noted that if the engine overheats, the reason may be not only the thermostat, but also the breakdown of the water pump blades.

Types of thermostats

The standard Niva thermostat is a fairly reliable element and serves faithfully for a very long time. The opening temperature of the factory thermoelement is 85⁰С, which is not enough for the stove to operate efficiently in cold weather. There are a huge number of analogues of the factory thermostat, and one of them is a thermocouple with a large circle opening temperature of 92⁰C, which will allow the internal combustion engine to operate at higher temperature conditions and will make the interior heater work much more efficiently, which will not affect the operation of the internal combustion engine.

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How to check

There are two methods for checking the functionality of the regulator, depending on whether a thermostat is installed in the car or not. If the unit is already connected to the engine and while warming up, the upper pipe going to the radiator immediately becomes hot, the exchange device is not working properly. The same applies to the case when the engine is warmed up, but the “large circle” line remains cold.

Another test method is used when the thermostat is disconnected from the vehicle systems. If low pressure air is supplied through the inlet pipe, it should not come out of the top of the thermostat. Only at the bottom. A violation of the current current directly indicates a faulty unit.

Which manufacturers of thermostats for Chevrolet Niva should you trust and how to replace them yourself?

Thermostat is a device in the engine cooling system that automatically regulates the temperature of the coolant.

The device maintains optimal thermal operating conditions of the engine; with its help, the engine warms up faster.

Structurally, it is a valve, inside of which there is a heat-sensitive element that blocks the flow of water, antifreeze, antifreeze through the radiator until the engine is completely warmed up.

Installation location: in Chevrolet Niva it is located on the left front edge of the engine, connecting the lower pipe of the stove, pipes from the radiator, engine and throttle valve.

Examination

The check can be done without removing the part from the car. To do this, start the cold engine and wait until it warms up to operating temperature. During warming up, we touch the lower radiator pipe several times and evaluate its temperature. Before the car reaches operating temperature, the lower pipe must be cold; if it warms up at the same rate as the other pipes, then the thermostat is faulty and is stuck in the open position.

Manufacturers and types

Standard sizes of thermostats, which by their design are suitable for installation in the engine of a Chevrolet Niva car, are produced by a number of global companies. The table below presents a list of products.

There is an opinion among car owners that the highest quality, reliable and durable thermostats are products produced by Russian factories. There are currently three such enterprises:

Among foreign models, car owners have good reviews of the Metal Inkar model from the Polish manufacturer.

These products work great in the Chevrolet Niva cooling system, the engine warms up quickly, there are no complaints.

The only negative is that the body is made in two versions - plastic and brass. The second option is not very popular among drivers, although it also works well in a circuit.

Zommer, Luzar, WEEL thermostats should only be selected from approved manufacturers. There are a lot of fakes on the market and on the Internet. Retailers seek to sell their dubious products under the guise of original ones to newcomers in the automotive business. To avoid getting burned, when purchasing, you must require licenses, certificates and supporting documents from sellers.

Articles and prices

To make it easier for you to decide which one is best to install on your car, the table below shows the article numbers and prices for the previously discussed models.

Reviews from Chevy Niva owners

Alexey Bondarenko, Kazan

For a year now I have been driving with a WEEN thermostat, article number 181-0034. The device turns on at a temperature of 87°C. My first thermostat was also a WEEL brand. I traveled with him for less than a year. He stopped maintaining his temperature. I've had my current device for one year and a summer. There were never any problems. The temperature always stays between 85-92 degrees.

Maxim Kalashnik, Pskov

I have been operating a VAZ Chevrolet Niva for more than 10 years with a Thomson thermostat. I have no complaints about the thermostat. Its peculiarity is that thermal inserts work for about 2 years in normal mode. Then they begin to underestimate their indicator. The standard temperature for them is 81°C. In the summer they work fine, that is, 87°C, and in the winter it feels a little cool at 81°C.

Sergey Poltorak, Bologoe

Finnord installed it on the previous Shniva, it worked 100%, last year it started to freeze on the new Shevik, but I couldn’t find Finnord, I installed Luzar - not cold but not so hot either...

The thermostat is screwed up! which one should I buy? — Chevrolet Niva, 1.7 l., 2011 on DRIVE2

Hello everyone, my dear subscribers, guests and just readers of this in-flight magazine. The cold has arrived, down to minus 10 and I have encountered such a problem as poor warming up of the car to 90 degrees. I have a problem with the thermostat, the car has been heating up poorly lately, the heater in the cabin is bad It heats with barely warm air even on a warmed-up car, the upper pipe going to the radiator is hot, but the lower one from the thermostat is cold even at 90 degrees, and the radiator itself is warm at the top but cold at the bottom, it turns out that because of a non-working thermostat, the O.Zh. in a small circle, bypassing the radiator. The question has arisen about replacing the thermostat, but which company is better to take? There are all sorts of plastic and iron ones, my native factory one is unclear from what company, but it says 80 degrees Celsius and it is iron. Nivovody, tell me which one is better to take? Otherwise, I’m tired of driving and freezing and taking a long time to warm up the car.

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Hello everyone, my dear subscribers, guests and just readers of this in-flight magazine. The cold has arrived, down to minus 10 and I have encountered such a problem as poor warming up of the car to 90 degrees. I have a problem with the thermostat, the car has been heating up poorly lately, the heater in the cabin is bad It heats with barely warm air even on a warmed-up car, the upper pipe going to the radiator is hot, but the lower one from the thermostat is cold even at 90 degrees, and the radiator itself is warm at the top but cold at the bottom, it turns out that because of a non-working thermostat, the O.Zh. in a small circle, bypassing the radiator. The question has arisen about replacing the thermostat, but which company is better to take? There are all sorts of plastic and iron ones, my native factory one is unclear from what company, but it says 80 degrees Celsius and it is iron. Nivovody, tell me which one is better to take? Otherwise, I’m tired of driving and freezing and taking a long time to warm up the car.

Replacing the thermal switch

The thermostat is replaced if the engine's thermal conditions are violated. This usually happens after 60 thousand km. The replacement process is not difficult. It is not necessary to completely drain antifreeze or antifreeze from the system.

Important! When the pipes are disconnected, a certain amount of coolant spills out, so you need to buy it first to top it up.

Required materials and tools:

1.Loosen the screws on the five clamps, using a screwdriver, tightening the pipes.

2.Pull off the rubber pipes from the thermostat housing.

3.Remove the old thermostat.

4.Install the new device in reverse order. Before installation, lubricate the joint with sealant. Tighten the new clamp screws securely with a screwdriver.

Note! All thermostats used structurally for the Chevrolet Niva are unified and suitable for VAZ classics.

In the winter cold everyone is young. Thermostat…

I return to this topic about thermostats periodically. I follow the posts here on the drive and the topics on the shnivo forum. Usually everyone has a problem - the spare parts are rubbish and the thermostat is stuck in a small or large circle. Over the long history of ownership, I probably replaced 3-4 of them. I never considered it a breakdown - it took about an hour to fuss with replacement, without draining the coolant (or rather, draining about a liter). In August/September I encountered this issue once again - the summer heat passed and I noticed that the car was not heating up. I decided that everything was clear and went to the store. I bought a thermos from Ladaimage in a blue box. Inside was a Pramo set to 80 degrees.

The old one, which I thought was jammed in a large circle, turned out to be exactly the same Pramo at 80 degrees.

I changed it and was disappointed. The car doesn't heat up at all. Or rather, it only heats up to 80 degrees. At idle in warm weather you can wait for 84, but mostly 81. When driving around the city 80-81, in the worst traffic jams 85.

I went to the store to look for the truth. But she's not there. There is a Pramo in the box LadaImizhd 80 degrees. There is Pramo in the Pramo box, exactly the same. There was also a plastic Luzar, also 80 degrees.

The plastic Luzar seemed completely scary. The valve was blown without straining. The seller tried several pieces and everything was the same - the valve was not completely closed.

Pramo in the box Pramo was not blown through at all. And the choice fell on him.

I decided to boil it at home as advised. I threw a thermos and a thermometer into the water. And he began to wait - at 46 degrees the first drops began to appear. It began to flow like a stream at 80. It reacts adequately to cold water - it closes well.

I also checked the old one - everything is the same. Opens/closes.

I decided to look further because I couldn’t heat it up. And so a friend told me that there is a winter thermostat. I don't know what this is, but I can order it. So I fought back in the catalogue. Ordered - 450 rubles. It's ok for an experiment.

I have never dealt with such parts before.

He compared it this way and that, twisted it, blew it, cooked it, poured it with cold and hot water one by one, and Pramo and Hofer. Blowing showed that the hofer does not close tightly. It doesn't blow much, but it always does. The boiler said it opens at 85, but before that it always drips.

There are no complaints about the quality of production. The fittings have small notches and are painted. I didn't see any more difference. I decided to test it on the car. I replaced the working one a week ago with this experimental one. As expected, it has warmed up. The temperature is kept at 85, at idle it was possible to wait until 90. When driving 85. in a city with traffic jams 87-88. In general, I consider this mode to be comfortable, but I don’t know what will happen in the summer in the heat. Do not change winter/summer thermoses. I was thinking about adjustable one - there are two worker donors, maybe it’s worth a try.

Along the way, I replaced the Vagov tank (which never cracks). After 8 years, I also began to snot at the seams. I bought something similar - but the fittings are slightly in the other direction and the mount (ears) turned out to be wider. I'll have to sculpt another bracket - for now I've attached the standard one to an elastic band.

While I was ordering thermoses, the anti-freeze lid caught my eye on the tanks. Mine hasn't turned on for a long time. Maybe it was never screwed on at all - I just put the lid on and that’s it. The new one turned out to be convenient.

It is rubber and when opened it creates a funnel for accuracy.

When closed it does not interfere with anything. I like it. The fit on the neck of the tank was perfect.

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