Many motorists are facing a situation when a car does not start hot after a few minutes. Depending on the engine in question, carburetor or injection engine, there may be different reasons for this problem. Why doesn't the hot carbub engine start?

Why doesn't the hot carbub engine start?

In the case of a carburetor, the reason that the car is not turned on or ill is hot, is hidden in the carburetor, as well as the properties of the petrol.

The fact is that during the work of the engine, the air flowing through the carburetor cools it, making the carburetor temperature stable lower than the temperature of the engine itself. However, when the engine is plugged, the carburetor starts to heat up from the hot drive. And since gasoline is volatile, its remains in the float chamber are beginning to evaporate quickly. As a result of this process, the fuel system will generate air traffic jams that make it difficult to start the engine on the hot side. In addition, if during this time to try to start the engine again, the combustion chamber will receive a rerich mixture, which will simply fill the candles.

To avoid problems with running a carburettor to a hot start, the fuel mixture should be prepared in advance, so that the engine will start properly. To do this, it is necessary to squeeze the gas pedal: it is usually sufficient to squeeze it in half, but for some motors it is necessary to do it in its entirety. At the same time, it is necessary to press the gas pedal once, because if you press the candles, it will be filled even more strongly.


If you are talking about a car with a carburetor, the reason is that it doesn't start to get hot or hot, maybe a gas pump. VAZ pumps are poorly carried out and very often overheat, making it difficult to start a hot motor.  Why a diesel or injection gasoline engine

Why a diesel or injection gasoline engine

If it is a diesel engine or gasoline engine with an injector, there can be much more reason. Here are the most common:

1. Coolant temperature sensor. It is possible that an incorrect signal is received from this sensor on the ECU, which disrupts the correct fuel delivery.

2. Fuel injectors leak. This problem leads to the reenrichment of the fuel mix. If the test on the stand showed that the fuel injectors are not airtight, they should be better replaced, as the cleaning of the nozzle is unlikely to correct this problem.

3. Defective DDP in diesel motors. This is very often due to the wear and tear of the plunger. Test the plunger is easy: the rear part of the TDDP should be cooled, cold water. If the engine doesn't work, then it's the plunger. In addition, the diesel engine may not be hot due to the wear of the drive shaft or toil of the HFID.

If you did not check these nodes and the details of the result, the problem should be explored further. The reason that the car is not turned on or ill is hot, can also be:

  • in the Colenwala,
  • Air mass flow sensor,
  • fuel line pressure regulator,
  • idle regulator,
  • Armored,
  • Ignition module, etc.




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