2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
During the operation of the car, the owners are faced with uneven engine operation - the so-called tripling. Along with this, power is lost, fuel consumption increases, extraneous noise and vibration appear in the operation of the motor. For many, and especially for beginners, tripling is not clear. Let's figure out what it means to troit the engine, what are the causes of this phenomenon, as well as what the consequences can be and how to solve this problem.
What does that mean?
Many cars are equipped with four-cylinder engines. Often there are situations when one of the cylinders fails. In this case, the engine is forced to work on the remaining three cylinders. Hence the expression - the engine troit.
This malfunction is associated with incorrect operation or complete inoperability of one or more cylinders in an internal combustion engine. That's what it means - the car troit.
Key Features
It is important to correctly diagnose the breakdown. After that, the problem will be localized and it will be possible to perform a competent repair of the power unit. As for the tripling effect, it is necessary to know the main signs, as well as the main causes.
We already know what troit means - a failure of one or more engine cylinders. This is not necessarily due to the failure of the cylinder. The mixture of fuel and air for some reason does not ignite inside the combustion chamber, ignition is delayed or the fuel mixture does not burn completely.
During the operation of the engine in idling mode, malfunctions are clearly audible and visible. They can be manifested by vibrations or twitches of the unit. Sometimes vibrations can be very strong and even transmitted to the car body, steering wheel, gear knob. If in the case of the first symptom, the problem can manifest itself only periodically, then in the second, even without diagnostics, one can say that one or more cylinders are not working.
Another sign is loss of power while driving. The driver may feel dips when pressing the accelerator pedal. Acceleration may not be smooth, but jerky. This may increase fuel consumption. On injection power units, a light may come on indicating engine malfunctions. These symptoms can occur for many other reasons, but these are the main signs that the engine is troit. So the car needs to be carefully checked.
Other signs
Often, tripping can be determined by jumping revs at idle and under load. RPM fluctuations can be both in a small range and quite serious.
You can also identify problems by spark plugs - they will be covered with a dry black coating. We know what a motor troit means, but in this case, a raid will not always indicate a faulty cylinder. Sometimes the cause of the raid lies in the candle itself. Even after replacing them, carbon deposits will form again after a short time, since the cause of such unstable operation has not been eliminated.
Triple is determined by the sound of the exhaust. Instead of the usual and rhythmic work, the engine will work with jerks, which is well heard from the exhaust pipe. These jerks can be felt on the body - it will vibrate.
If at least one of these symptoms is found, then a diagnosis should be made quickly. You need to find out if the problem is directly related to the engine or the failure is caused by related equipment. If you ignore this, then very soon the motor can seriously fail and require complex and expensive repairs.
Key reasons
What does the engine troit mean, we already know. Many, after learning about this problem, want to know why this happens. In fact, there can be a huge number of reasons. Diagnosis can take a lot of time and effort. But you can identify the main reasons that most often lead to unstable engine operation.
One or more cylinders cannot work due to malfunctions in the ignition system. This happens most often. The performance of the fuel system and fuel supply devices may also be impaired. Another popular reason is low compression in the cylinder due to the natural wear of the cylinder-piston group.
During diagnostic procedures, all causes should be ruled out. This will save a lot of time in subsequent repairs.
How to identify a broken cylinder?
For repairs, it is important to find out which of the cylinders is not working. For this, experienced motorists recommend an old and proven method over the years. It consists in the fact that candle wires are removed from each cylinder in turn.
For such a test, it is necessary to find some kind of base on which you can stand and which does not conduct electricity. It can be a rubber mat or a board made of wood. Next, start the engine, and keep the speed within 1500 rpm. After they take the wire and disconnect it from the candle. If the motor has changed the sound, then everything is in order with the cylinder. If the sound has not changed, then this is the idle cylinder.
Candles and wires
If the motor troit, what does it mean? This indicates that one of the cylinders is not functioning. Among the reasons were indicated possible problems in the ignition system. Let's consider this point in more detail.
Can a power unit with low mileage triple? Quite possible. This is the thought that should come to mind.normal car enthusiast in the first place. Also, a late or too early ignition point, a weak spark, lead to a problem. Drivers are advised to remove the candles and check them for integrity. If during the visual inspection it was possible to identify damage to the insulator, then the candle must be sent to the trash.
Nagar, as discussed above, can also indicate a problem. Too rich mixture enters the combustion chamber. A thick layer of soot leads to interruptions in the operation of the candle. Among the reasons for these interruptions - the engine often overheats, the cylinder has a low compression ratio, the timing belt has jumped, there are problems with the fuel supply equipment.
If the engine started, as they say in jargon, to triple (what it means, we have already found out - to work on three cylinders) on a cold engine and no problems with the candles could be found, then it is recommended to visually check the condition of the wires. This effect can be observed at high humidity. If the integrity of the high-voltage wire is broken, then this will lead to tripping. But as it warms up, the symptoms will disappear. If the engine is running on three cylinders hot, then you need to look at the condition of the cylinders and piston rings.
Air supply system
One of the popular reasons is too much or too little air in the intake tract. The system may lose tightness, due to which the motor will suck in excess air. The air supply system should be checked in the garage.
For diagnostics, block the air intake pipe near the airfilter. Then pump in air? This is necessary in order to create pressure. If it falls, then there is no need to talk about the tightness of the system. You should look for a place where there is a leak. Insufficient amount of air may be due to a clogged air filter. It's better to change it. The engine should then run normally.
Motor problems
In order for the engine to operate normally and efficiently burn the mixture of fuel and air, the combustion chamber must be closed at certain points. If damage to the cylinder-piston group or gas distribution mechanism occurs inside, then this will necessarily lead to malfunctions in the timing. Then the tightness will be broken.
We know what troit means, and the cause of cylinder failure is simple. The piston cannot compress the mixture to such an extent that it ignites normally. This is caused by stuck piston rings, burnt valves, scuffing in the cylinders.
To determine the problem, you need to measure the compression of the cylinders. If in one of them the indicator is below the norm, then engine oil is poured there with a syringe. Next, the compression is measured again. If the indicators have risen, then this indicates that there are problems with the cylinders and pistons. If there were no changes, then the valves or the cylinder head failed.
Can I drive?
In addition to discomfort when driving, the effect of tripping can lead to more serious damage. The combustible mixture will be supplied to the cylinder. Gasoline thensettles in the crankcase and gets into the oil. The latter will become more liquid and lose its characteristics. The engine will run under heavy loads dry. Therefore, if such a problem occurs, you should find the cause and eliminate it. Moreover, we know what it means: the engine is troit.
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