Mechanics is a relatively methodical profession. However, if there is indeed a concern that is at times difficult to explain, it is unstable idling or loss of acceleration. Whether it concerns a Volkswagen Jetta, or any other car model. However, we can help you understand. Undeniably, the reason can come from many components of the engine block, or even electronic. To find the source of the breakdown of this Volkswagen Jetta, you must follow a strict method. But first of all, we will see the symptoms of a faulty idle.
Idling problem on a Volkswagen Jetta: symptoms
Un unstable idle close to stall . This is undoubtedly the most recurrent dysfunction in slow motion. This feeling that the engine will stall while driving at ordinary speed, or that the Volkswagen Jetta grazes . It may also happen that stalling occurs. In this case, it is a real danger for the motorist. If so, do not delay in dealing with it. We suggest that you do a check through the following paragraph. We can also understand that your Volkswagen Jetta has a acceleration malfunction . No more reports this time with an idle malfunction. Losses of power and acceleration holes could happen for multiple reasons. These two phenomena should not be confused. We invite you to read our files concerning power losses.
Volkswagen Jetta: developing a diagnosis to understand the origin of idling
We need to start by performing several extremely easy checks, just before going into more detail.
Idling of the Volkswagen Jetta: exhaust fumes.
A black smoke comes out of the exhaust. This usually means that the air and fuel mixture is out of order. Or the air filter is clogged. In both situations, an idle malfunction can occur on the Volkswagen Jetta. A White smoke comes out of the exhaust. This time too it can be the result of a deregulation. White smoke is usually water vapor. It is therefore likely that it is a malfunction of the intake or the cylinder head gasket.
Checking the engine block components
As we said, an idle malfunction on this Volkswagen Jetta can be caused by many components. So try to run through the engine block carefully. On the other hand, it is advisable to be extremely careful and not to touch the components of the engine block too much, as this may amplify the problem or divert the cause of the malfunction. We naturally recommend that you go to an auto repairer for a more thorough check. Here, therefore, point by point, the constituents to be checked.
- The first thing to do is check all of the hoses . These can be pierced, or even detached.
- You also need to check the sensors and sensors of your engine block. It is nevertheless difficult to check their correct functioning. Tutorials are easily found on youtube, and this often requires electronic devices.
- Perform a check of pressures Hydraulic. Again, pressure checks require suitable tools.
Idle malfunctions are common however are difficult to recognize. A visual check on your Volkswagen Jetta allows you to have an idea, however it is better not to venture into amateur DIY.