The optimum temperature in the cabin is the key to a comfortable ride. In the summer, this function is performed by climate control and air conditioning, and in the winter - the stove. However, what if the car does not heat the VAZ 2114? The reasons for low engine speeds can be very diverse. So, let's look at its device and malfunctions.
Device and purpose
This unit performs the function of air redistribution in the cooling system. The principle of its operation is quite simple - the stove takes part of the heat from the motor and sends it to the salon. This keeps warm inside the car. This node consists of several elements:
- Branch pipes.
- Radiator stove.
- Faucet adjusting the level of circulation of antifreeze.
- Ducts and dampers controlling the speed and direction of air supply.
- Electric fan.
A working unit must provide unhindered air circulation through all of the above elements. But what if the VAZ 2114 stove (injector, 8 valves) does not heat? The reasons may be different. Let's consider each of them.
Malfunctioning electric fan
In this case, it is necessary to disassemble the stove. First you should start the car and turn on the system to the maximum level of work. In the absence of noise, it is the electric fan that is responsible for the malfunction. Experienced motorists recommend changing it to a mechanical one. It is believed that he is more reliable in this regard.
Thermostat
In addition, the reason that the stove on a VAZ 2114 car does not warm well (including at idle) is a breakdown in the thermostat, namely, valve non-opening. Thus, the circulation of the coolant is carried out only in a small circle. A machine with such a malfunction often boils, and in winter the stove does not work, or it warms very weakly. Checking the health of the thermostat is quite simple. When dismantling it, place the part in a container of water and heat it in a cupboard. Before boiling in water (bubbles will form), the valve should open. If this does not happen, the item should be replaced with a new one.
Fortunately, it is inexpensive. By the way, experienced motorists recommend changing thermostats depending on the season of operation. For example, in summer it is better to set the element at 82 degrees, and in winter - at 72. It is not necessary to adhere to specific values, just remember the principle - the colder it is outside, the lower the temperature the valve should open. If the VAZ 2114 stove does not warm well, you can check the part indiscriminately - for this, on a warm engine, you need to touch the upper and lower pipes of the main radiator. Both elements must be hot. If one of them is cold, most likely the valve did not open, and the thermostat must be replaced.
Airlock
If the stove on a VAZ 2114 car does not heat well, the reasons for this are the airing of the system. A plug may form after turning off the engine when the antifreeze temperature drops. It was at this time that air could enter the part of the radiator from the expansion tank, which then “stuck” in the area of the thermostat. At a subsequent start-up, the system will circulate air instead of coolant, which will cause the motor to overheat and the stove to work badly. How to get rid of this cork? To do this, motorists loosen the coolant pipe clamp and slowly add antifreeze to the expansion tank to the maximum. By the way, you cannot mix different brands of coolant - the system may foam. Therefore, we add only the brand that was used previously, or use distilled water. The latter method is used in any season, with the exception of winter, since water at freezing temperatures will simply freeze in the tank. Antifreeze itself should be as transparent as possible (factory color does not count), to the touch - slightly oily. If it has not changed for a long time and lost these properties, it became cloudy, then it is better to merge it whole and use a new “frost-free”. If the stove does not heat well (VAZ 2114 1.5 including), you can get rid of the air plug in another way - just call the front of the car to lift and open the lid of the expansion tank. After waiting 3-5 minutes, the system itself will push out all unnecessary air.
Tap breakage
This detail also should not be ignored by attention. If the stove does not warm well (VAZ 2114 injector of 8 valves), the reason may be hidden in it. In most cases, it does not fully open. The reason is poor fixation of the cable of the stove. On cars "Samara-2" it is located near the pedals. To resume the operation of the unit, it is necessary to tighten the element with pliers.
It happens that the VAZ 2114 stove does not warm well, the damper is open, and antifreeze is dripping into the cabin. The cause of the malfunction lies in the depressurization of the seals (most often on the faucet). If there are clamp connections, they should be tightened. Also carefully look at the condition of the pipes themselves. They should be soft, without cracks or other signs of wear. Otherwise, you need to purchase a repair kit and completely change the pipes (it is best to purchase new clamps, as the old ones turn sour).
Radiator clogged
Debris and dirt can accumulate in its combs, which is why the flow of warm air into the cabin is very weak.
The way out is washing the element with citric acid or anti-scale products.
Breakdown in the radiator
If the honeycomb is damaged, the antifreeze circulation will deteriorate significantly. In this case - only a replacement. And you need to change strictly to a new one. Never buy a used radiator.
In order to replace it, it is necessary to disassemble the console and the front panel of the car. Next, prepare a clean container with a volume of 5 or more liters and drain all the antifreeze from the system through a faucet on the radiator. Then it is necessary to remove all mounting pipes and radiator fixing bolts. The location of the latter is indicated in the photo by an arrow.
After installing a new element, do not forget to fill the antifreeze into the system again. To avoid air congestion, do not pour liquid into the expansion tank with high pressure. Poured 200 ml - wait 10-15 seconds, then add more. And so on until the system is completely filled with antifreeze.
water pump
It happens that the stove ceases to function due to low pressure in the system. The water pump - the pump - is responsible for this function. Symptoms - when the car is moving, heat does not enter the passenger compartment. The way out of this situation is to replace the water pump. Motorists recommend choosing a duralumin part - it is much more reliable than the standard one.
Antifreeze level
Why is the stove warming badly on a VAZ 2114? The reason may be commonplace - a low level of antifreeze in the heating system. In winter, it should be slightly more than the maximum mark (1-2 centimeters). As we said earlier, you cannot mix different brands, and in order to avoid air congestion, pour in small doses, with short breaks.
Cylinder head gasket
Sometimes the cause of a faulty stove is a burnt cylinder block gasket. This malfunction can be identified by several signs. Firstly, the presence of the smell of gasoline or exhaust gases in antifreeze. Secondly, on the dipstick and the cover of the oil filler neck, a certain mixture is formed - “mayonnaise”.
It arises as a result of mixing automobile oil with coolant. Also, characteristic white smoke will be visible from the exhaust pipe while the engine is running. If at least one of the above signs is present, it is necessary to diagnose the condition of the gasket and urgently replace it.
Stove motor
This item may also fail. Check its serviceability is quite simple. To do this, turn the knob responsible for the temperature regime. If nothing has changed (the air, as it was cold, remains the same), it is necessary to replace the stove motor. After that, the problem with its functionality disappears.
Fault Prevention
In order not to ask the question “why does the stove heats up badly on the VAZ 2114”, regular maintenance of the unit is necessary. It consists in periodic analysis of the system and cleaning of each of its parts. Change antifreeze more often. Fresh antifreeze will freely flow through the thermostat valve into a large circle, including the stove. Also check for leaks in the faucet and fittings that fit the radiator. If they have cracks, they should be replaced. On a well-warmed engine, drips are unacceptable. For better tightness, motorists advise using a “fum tape”, wrapping it around technological connections. On top of it, the pipes are dressed and fixed with clamps. Once every 2 years, flush the cooling system completely .
Conclusion
Observing these rules, you not only prevent the breakdown of the stove, but also extend the life of the motor. After all, each of us knows that heat and engine are incompatible concepts.
At the slightest overheating, it leads the block head. And repairing it is much more expensive than a new antifreeze canister.
So, we found out why the VAZ 2114 stove does not warm well. As you can see, the problem can be solved with your own hands with minimal investment (if you notice a malfunction in time).