Mechanics is a relatively logical area. However, if there is one phenomenon that is often hard to explain, it is unstable idling or acceleration holes. Whether for a Citroen Sm, or for any other type of car. However, we are here to help you. Indeed, the cause can come from a large number of engine components, or even electronic ones. To detect the source of the breakdown in your Citroen Sm, you must follow a fairly simple method. But above all, let's see the signs of a faulty idle.idle-problem-Citroen-Sm

Idling problem on a Citroen Sm: the symptoms

Un unstable idle close to stall . This is undoubtedly the most frequent concern in slow motion. This impression that the engine may stall while driving at a normal speed, or that the Citroen Sm grazes . It also happens that stalling occurs. In this situation, it is a real danger for the motorist. In this case, don't wait too long to take care of it. We invite you to carry out your own control via the following paragraph. We can also understand that the Citroen Sm has a concern for acceleration . No link this time with a concern of low regime. Losses of power and acceleration holes will be able to happen for multiple causes. These two phenomena should not be confused. We advise you to read our posts concerning power losses.

Citroen Sm: develop a diagnosis to understand the origin of idling

You have to start by performing several extremely easy checks, just before going into a little more detail.

Idling of the Citroen Sm: exhaust fumes.

A black smoke emanates from the exhaust. This often means that the air and fuel mixture is out of order. Or that your air filter is clogged. In both cases, a problem of idling can happen on this Citroen Sm. A White smoke emanates from the exhaust. This time again it may be due to a deregulation. White smoke is often water vapor. It is thus plausible that it is a concern of admission or of the head gasket.

Engine components check

As we said, a slowdown problem on a Citroen Sm can come from many components. So try to run the engine carefully. However, it is suggested to be extremely careful and not to touch the engine components too much, as this can amplify the problem or divert the cause of the problem. We naturally recommend that you go to an auto repairer for a more thorough check. Here are therefore step by step the elements to check.

  • The first thing to do is check all hoses . They can be perforated or even detached.
  • In addition, the sensors and sensors of your engine. It is however difficult to verify that they are working properly. Tutorials are easily found on youtube, and this often requires electronic devices.
  • Perform a check of pressures hydraulic. Again, the pressure controls require appropriate equipment.

Idling problems are frequent, however, are difficult to diagnose. A visual check on the Citroen Sm gives the opportunity to have an idea, however it is wiser not to venture into amateur DIY.