Why does the engine troit?
The engine build (or missing) is not the most popular breakdown, but very serious, and therefore everyone should be able to notice and eliminate it in time. The most difficult thing in solving this problem is to carry out the correct diagnostics, that is, to determine why the engine is troit, because there are quite a lot of reasons why this breakdown occurs. Let's take a closer look at these reasons.
"Engine troit" - what does this mean?
Before you understand the causes of separation, it is worth a little more to understand the nature of this failure. The fact is that before the most common type of engine was a four-cylinder engine, it worked, which is logical, on four cylinders, and when one of the cylinders broke, the engine switched to work on three - and from here the phrase “engine troit” works on three cylinders.
Also, this failure is called Missing. Why? This term is borrowed from the English language - missing, which means missing, missing, missing. That is, the use of this term is also very logical - one of the cylinders is skipped.
So, the nature of the breakdown is clear - the engine troit when one of its cylinders stops working.
How to determine that the engine began to troit?
The engine sounds very characteristic when it is missed, the car starts to “thunder”, instead of the uniform operation of the four cylinders, the owner hears some intermittent hoarse whipping. This sound, of course, is very difficult to describe in words, but when your car issues it, you are unlikely to mix it up with something.
Troits engine: causes and how to eliminate them.
The most common problem that leads to engine building is spark plug failure, so first of all we inspect the spark plugs. We take out the candle from the cylinder and carefully study it - the color of the side electrode and the insulator should be light brown.
If you see soot on a candle - it means that problems may arise with it during work - soot interferes with the normal flow of sparking. This candle, of course, should be replaced.
When checking the candles we recommend also to pay attention to its body. It should be a light uniform color - black bars or dots indicate problems.
In the event that you did not notice any problems during a visual inspection, you should still check the spark for a spark. For this:
- Unscrew the candle and insert into the tip of the high-voltage wire.
- Put the candle in a metal case to the engine - the electrode of the candle should touch the engine case.
- Ask the assistant to turn the engine over with the starter and watch the candle yourself. Is there a spark? Is it weak or strong?
If a visual inspection of the candle made you and when scrolling the starter, it gives a good spark - we are looking for a breakdown further.
High voltage wires
Quite often, the cause of motor tripping is the “breakdown” of high-voltage wires or their damage. Carefully inspect all the wires, they should not be any plaque, as well as gray, black and brown dots and stripes.
If you have a multimeter, measure the resistance of the wires, it should not exceed 20 kΩ. In the event that one of the wires shows a large or, on the contrary, zero resistance, it means that you have found a problem - one of the wires is faulty.
It would not be superfluous to check the correctness of connecting the wires - on the ignition coils, of course, the numbers are always indicated, allowing you not to confuse anything and connect the correct cylinder to the correct coil, but an error is always possible due to the human factor.
Ignition distributor cap
If high-voltage wires, as well as candles, are arranged for you, proceed to inspect the ignition distributor cap. In the event that a breakdown occurred, you should see a strip of dark color in the contact area.
Also, the sample can be checked as follows:
- Start the engine.
- Screw one end of the wire to the car body.
- With the second end move near the distributor cap at a distance of about 0.5-1 mm. The presence of a spark indicates breakdown.
By the way, breakdown of the distributor is often caused by faulty plugs and wires, which means that the following situation is possible - the engine closes, you find faulty plugs and replace them, and the engine still misses the cylinder. Why? It is likely that the candle "hooked" the distributor, and it also needs to be replaced.
Malfunction of the injectors, injector or valve timing
These three reasons do not so often lead to engine separation, but they cannot be ruled out. Failure of the injectors, injector and valve timing can be caused by a number of reasons, ranging from the use of low-quality fuel and ending with wear of hydraulic compensators, and therefore it is very difficult to understand which of the causes is relevant in your case.
We recommend that if the inspection of the plugs, wires and the distributor did not allow you to detect the problem, contact the specialists, who will carry out a complete diagnosis, accurately determine and eliminate the cause of the breakdown.