Modern cars are equipped with variousoptions that should facilitate the launch of a cold motor, but often these devices do not cope with their tasks, and the engine is badly wound to the cold, and even not at all. Thus the warmed-up engine can work very easily and well.
Early in the morning under the hood of the car beginsvanity and fuss in attempts to warm up the unit and start it. Every car enthusiast dreams to get into his car in the morning, just to get it and go, and not to think, the motor will start or not.
Solving the problem with a cold start is prettydifficult, because there is no exact answer to the question of the poor start of the cold engine. For the basic reasons, one can take the absence of a combustible mixture in the combustor or the malfunction of the candles. This is a consequence. All the rest is the cause. Sometimes the fault is incorrect fuel supply to the combustion chamber. The mixture may not be enough, or, conversely, too much.
Among the main reasons for poor start-up are the following:
Do not immediately try to find all or one of these symptoms. If the car is badly started on the cold, first thing is to observe the behavior of the machine during start-up.
Often when you start the starter works fine,but the engine can not start. If you unscrew the candle, it can be either dry or filled with gasoline. This is a kind of indicator. A lot can tell the smell of fuel. If gasoline does not have a characteristic pungent smell, then the reason is in it. However, if the candle is wet and the gasoline smells as it should, then the essence of the breakdown is hidden somewhere else. If everything is in order and the smell of fuel is correct, the injectors are completely clean and the pressure in the fuel system is normal, then you should continue the search.
On a cold machine it gets badly started because ofseveral reasons. So, it is necessary to check the battery level. If it is extremely discharged or its service life is coming to an end, it may not produce enough current to start up. Understand that the reason in the battery, you can by how the starter behaves. He does not spin the engine or spin, but unstable.
Often there is a problem with the treadmill from Honda.
There may be problems with the armored cable. This is also a frequent breakdown in the tumbler auto.
Often a bad start can be associated with a strongwear of the ignition coils. If only one coil is installed in the vehicle, then the diagnostics can be carried out using a tester. But if the coil is not alone, then it is almost impossible to diagnose, and all of them almost never fail out of action. For a normal start-up, even one running coil will suffice. The variant with coils should be checked last, if everything else is already excluded.
Sometimes the machine gets cold on the cold because of any problems with the spark plugs.
If it has traces of gasoline, then thisindicates that they were flooded. It is necessary to constantly have a set of serviceable in the trunk, or better - a new one, not to clean and dry the old ones, but simply to install new ones.
The car can be badly started up in a frost at weak or at all absent a compression in chambers of combustion.
A problematic start may be due to a faultystarter. Frozen oil, condensate in the exhaust system, crystallized antifreeze. To get out of the situation when a cold machine gets badly started, it is necessary to use oils with a viscosity of 5W30, 5W40 or 0W30 and 0W40. The starter should untwist the crankshaft to 100 rpm. The most important thing is fuel. It should have saturated vapor in the composition.
If the classic VAZ is badly started on the cold, it means that the settings were lost or a lot of small defects accumulated in the car. It is necessary to conduct a small maintenance.
During this inspection, check fluid levels in the engine crankcase, gearbox, fluid level in the cooling system and the braking system.
If VAZ is carburetor, then this element canbe clogged. Also it is necessary to examine the membrane of the starting device, the tightness of the tubes of the vacuum amplifier, the membrane of the gasoline pump. Also make sure that the starter is working correctly.
If it gets bad on a cold injector, thenhere it is necessary to search for a malfunction in the injectors. The injector unit will operate as a clock, but only if it is in perfect condition. Especially their condition is actual in the winter period, when clumps of non-fuel origin can seriously complicate the launch.
Often, the nozzles are changed according to the regulations fromcar manufacturer. It is also necessary to wash them regularly, especially as the quality of fuel leaves much to be desired. When flushing nozzles at home, it is necessary to monitor their tightness.
If the injector engine is started and immediatelyit's a sign that the ECU is trying to feed a rich fuel mixture to the combustion chambers. Candles are flooded with gasoline and as a result, the engine will not work properly.
If the first problem for gasoline engines -this is a candle, then for diesel - a bad compression. Badly gets on a cold diesel engine at weak compression. A little better engine will work if it is warmed up.
About poor compression signals unevenwork, vibration, blue smoke from the exhaust pipe. If you look under the hood and open the engine, the unit will be completely in oil. Another lack of compression can be identified by reducing power, increased noise during operation, as well as a large consumption of fuel and oil.
If you get a bad start on a cold diesel, then first of all measure the level of compression.
Also the cause can be searched in the nozzles.During the operation of engines on poor-quality fuel, the injectors wear out badly. First, the control valve is depressurized, and then the tip of the injector is reclaimed.
Also it is necessary to inspect the injection pump.Each element of the pump and the injection system are generally subject to severe wear and tear. If the engine is badly wound and the starter needs to be rotated for a long time, it is not out of place to check the pump.
It is superfluous to check and candles.They do not have large dimensions and are often hidden behind the motor. If one or more of the candles is out of order, the motor will not start in the cold. It is necessary to replace the candles. This is a typical reason why the machine is cold on a cold one. But for a better start it's worth buying a preheater.
So, we found out the main reasons why the car does not start.
