After washing the engine, the car does not start: possible causes and ways to solve the problem
Among motorists there are a large number of owners, who seek to maintain maximum cleanliness not only of the interior and body of the car, but also underhood space. In other words, it's about washing the engine. As you know, the engine can be washed in different ways, however, this situation often arises, when the fresh power unit does not start.
Most often, the starter turns, the engine is even trying to start (grabs), but the startup does not occur. Also on many cars the unit manages to be started, the machine throbs after washing the engine and then stalls. In this article, we will look at the main reasons, on which the engine refuses to start, "check" is lit after washing the engine, the power plant works intermittently, etc.. P.
The owner washed the engine and the car does not start: possible causes of failure
so, must be noted immediately, that the power unit is usually not started in that case, if its washing was performed taking into account serious violations.
In other words, deviations or complete disregard of certain rules in the course of this procedure were allowed.
It does not matter, wash the engine by hand, Kercher or washed the engine with steam. One thing is clear - water or moisture got into the responsible elements of different systems, resulting in failure or short circuit. However, do not immediately despair and pull the car into service. It should be noted, that many consequences of such washing can be eliminated independently on the spot.
- First of all, you need to carefully inspect the hood space for possible accumulation of water in various niches and recesses. Particular attention should be paid to remote and inaccessible places.
- To remove water, rags and sponges are best. The sponge is optimal for hard-to-reach areas, since, unlike rags, able to absorb large amounts of water.
We also recommend reading the article about it, how to properly wash the engine in winter. In this article you will learn about the features of the engine wash and hood space in the winter, that is, taking into account the negative ambient temperatures and possible consequences.
- The next step is to remove moisture from the battery terminals, high-voltage armored spark plugs, as well as other wiring elements under the hood. Example, high humidity leads to that, that a characteristic gray plaque is formed on the battery terminals. Such a plaque significantly impairs the contact between the terminals and the battery. As a result, the engine is difficult to start.
- After, as all areas will be dried, you can try to start the car. If the cause of the problem was moisture, then after its removal the unit should start and start working exactly.
In cases, when surface water removal does not help, you need to approach the issue of drying on the other hand. One of the most problematic areas can be considered the place of installation of spark plugs. If there is water or flooded candles, then the unit will not start, as there will be no sparks to ignite the fuel in the cylinders. In this situation, you need to unscrew the spark plugs and dry them separately.
At the same time it is necessary to dry candle wells. You also need to inspect the high-voltage spark plug wires and their joints with the spark plugs. Usually, to prevent short circuits, you need to inspect all wiring under the hood.
As for cars with shock absorbers, the engine will not start, if moisture has accumulated under the cover of the shock absorber. In this case, the shock absorber must be unscrewed, wither it all dry, then reassemble the item.
Let's add, what if there is such a possibility, after removing water and moisture, it is recommended to additionally blow the problem areas with air from the compressor. After completing all procedures, you need to double check the reliability of all connections, tighten the terminals on the battery and try to start the car.
By the way, the car can have an ignition system without a shock absorber. In this design, separate ignition coils are provided for each cylinder. These coils must be removed, wipe and blow. On some motors it is easier to do, than disassemble the shock absorber, however, on others, the removal of the coils may be associated with certain difficulties due to access.
Tips and tricks
As you can see, if the car does not start after washing the engine, there can be many reasons, from the most obvious to the breakdown, which is difficult to determine on the spot.
On different cars water can get inside details, which leads to their failure after short circuit. In this case, it is useless to dry the engine and bonnet space, as damaged elements need to be replaced or repaired to start the internal combustion engine.
During the initial diagnosis should be considered, that the ignition system most often suffers from water. For this reason, the initial review should begin with the elements of the specified system. If the driver noticed, that the car was still poorly started in wet weather or after washing the body, then it can speak for itself, that somewhere there is a breakdown of isolation of armored pipelines, crack in the cover of the shock absorber, etc.. P.
pay attention, if the engine is washed, then check the space under the hood for moisture accumulation before that, how the first launch of the internal combustion engine. In other words, it is better to dry the engine immediately after washing, before starting the unit. This will avoid such problems, like burnt ignition coils, short circuits, etc.. P.
We also recommend reading the article about it, than you can wash the engine at home. In this article you will learn about the available ways to wash the engine, as a special chemistry, and improvised household appliances.
We will note still, that if the culprit of a difficult start is a gray plaque on the battery terminals, then, after disconnecting the terminals from the battery, the plaque dissolves well and is removed with ordinary water. Enough to pour water on the terminal and then dry, instead of, to clean plaque with brushes or sandpaper for a long time.
As a result
Given the above information, it becomes clear, that most of the problems described occur after improper engine cleaning. Remember, the engine sometimes even needs to be washed, and this can be done by Kercher. However, in no case should a stream of water be supplied under high pressure. Also, all problem areas should be protected from moisture before washing.
As for the safest way to wash the engine, it is best to wash the motor by steam in those places, where this service is professional and the work is guaranteed. Another way is to wash the engine yourself. To do this, you must purchase a quality external engine cleaner from oil and dirt.
You will also need to prepare rags and brushes. In parallel, you need to insulate individual areas and elements from water. The toothbrush is well suited for work in hard-to-reach places. Although this method takes a long time to get good results, however, the risk of breaking or flooding something is significantly reduced.
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