Mechanics is a fairly Cartesian profession. But if there is a phenomenon that is sometimes hard to understand, it is an unstable idle or loss of acceleration. Whether for a Renault Juvaquatre, or any other vehicle model. But we can help you understand. And yes, the cause can come from a lot of engine components, or even electronics. To find the origin of the breakdown of your Renault Juvaquatre, it will be necessary to follow a strict procedure. But above all, let's see the symptoms of a slowed down idle.problem-idle-Renault-Juvaquatre

Idling problem on a Renault Juvaquatre: symptoms

Un unstable idle close to stall . This is completely the most common problem in slow motion. This feeling that the engine will stall while driving at an ordinary speed, or that the Renault Juvaquatre grazes . Sometimes it happens that stalling occurs. It is therefore a real danger for the driver. In this case, do not delay taking care of it. We suggest that you carry out a check through the next paragraph. We can also understand that your Renault Juvaquatre has a acceleration problem . More report in this case with a problem of low regime. Losses of power and acceleration holes are going to happen for multiple reasons. These two symptoms should not be confused. We suggest you read our articles related to power losses.

Renault Juvaquatre: developing a diagnosis to understand the origin of idling

We have to start by carrying out various extremely easy checks, before going into a little more detail.

Renault Juvaquatre idling: exhaust fumes.

A black smoke comes out of the exhaust. This usually means that the air and fuel mixture is out of order. Or that the air filter is blocked. In both situations, an idling problem can occur on the Renault Juvaquatre. A White smoke comes out of the exhaust. In this case also it can be the result of a deregulation. 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 shown, an idling problem on a Renault Juvaquatre can come from many factors. So try to inspect the engine carefully. On the other hand, it is advisable to be extremely careful and not to touch the engine components too much, as this could amplify the malfunction or conceal the origin of the problem. We obviously advise you to go to a garage for a more detailed check. So these are step by step elements to examine.

  • The first thing to do is check all of the hoses . These can be perforated or even detached.
  • It is also necessary to control the sensors and sensors of your engine. It is however difficult to check their correct functioning. You can find tutorials on youtube, and that often requires electronic devices.
  • Perform a check of pressures hydraulic. Again, pressure testing requires adequate equipment.

Idle concerns are common but are hard to diagnose. A visual check on your Renault Juvaquatre will allow you to have a clearer vision, but it remains preferable not to tackle amateur DIY.