Mechanics is a rather methodical profession. But if there is one problem that is sometimes hard to understand, it is unstable idling or acceleration holes. Whether for a smart smart, or for any other vehicle model. But we can help you understand. Indeed, the cause can come from a good quantity of engine parts, or even electronic. To detect the nature of the breakdown of this smart smart, you must follow a strict method. But first, let's see the signs of a faulty idle.problem-idle-smart-smart

Idling problem on a smart smart: the symptoms

Un unstable idle close to stall . This is undoubtedly the most common idle problem. This feeling that the vehicle will stall while driving at a normal speed, or that the smart smart grazes . It even happens that stalling occurs. In this situation, it is really dangerous for the driver. If so, do not delay taking care of it. We suggest that you make a diagnosis through the paragraph below. We can also understand that your smart smart has a acceleration problem . No link this time with a low speed problem. Losses of power and acceleration holes may appear for multiple causes. These two different concerns should not be confused. We invite you to read our files related to power losses.

smart smart: develop a diagnosis to understand the origin of idling

You have to start by performing various extremely easy checks, before going into more detail.

Idle of the smart smart: exhaust fumes.

A black smoke escapes from the exhaust. This usually means that the air and fuel mixture is bad. But also that your air filter is clogged. In both cases, an idle problem can appear on this smart smart. A White smoke escapes from the exhaust. This time too it can come from a disturbance. White smoke is usually water vapor. It is therefore plausible that this is an intake or cylinder head gasket problem.

Engine components check

As we have demonstrated, an idle problem on this smart smart can come from many points. Take the time to inspect the engine carefully. However, it is advisable to be extremely careful and not to tamper with engine components, as this can worsen the breakdown or divert the nature of the problem. We obviously recommend that you go to a mechanic for a more suitable audit. Here are therefore step by step the constituents to check.

  • The first thing to do is check all of the hoses . They can be pierced, or even detached.
  • We will also have to check the sensors and sensors of your engine. However, it is complicated to check that they are working properly. Tutorials are easily found on youtube, and it usually requires electronic devices.
  • Perform a check of pressures hydraulic. Again, the pressure tests require an appropriate tool.

Idle worries are common, however, are difficult to diagnose. A visual check on your smart smart gives the opportunity to have an idea, however it is better not to venture into amateur DIY.