Mechanics is a fairly methodical profession. However, if there is one problem that is at times hard to explain, it is unstable idling or acceleration holes. Whether it concerns a Toyota Prius, or any other type of automobile. However, we can help you understand. Undeniably, the reason can come from many components of the engine block, or even electronic. To find the origin of the breakdown of your Toyota Prius, it will be necessary to follow a strict methodology. But first, let's see the signs of a slowdown idle.idle-problem-Toyota-Prius

Idling problem on a Toyota Prius: symptoms

Un unstable idle close to stall . This is completely the most recurring idle dysfunction. This feeling that the engine will stall while traveling at ordinary speed, or that the Toyota Prius grazes . It may indeed happen that the vehicle stalls. It is therefore really dangerous for the driver. If so, do not delay in worrying about it. We suggest that you carry out your own diagnosis via the next paragraph. We can also understand that the Toyota Prius has a acceleration malfunction . No more reports this time with an idle malfunction. Losses of power and acceleration holes can appear for various reasons. We must avoid confusing these two phenomena. We suggest you browse our posts related to power losses.

Toyota Prius: developing a diagnostic to understand the origin of idling

You have to start by carrying out a number of very simple checks, before going into even more detail.

Idling of the Toyota Prius: exhaust fumes.

A black smoke escapes from the exhaust. This often means that the air and fuel mixture is bad. Or that your air filter is clogged. In both cases, an idle malfunction may appear on the Toyota Prius. A White smoke escapes from the exhaust. This time too it can come from a disturbance. White smoke is often water vapor. It is therefore probable that it is a malfunction of the intake or of the cylinder head gasket.

Checking the engine block components

As we have seen, an idle malfunction on a Toyota Prius can come from many points. Take the time to inspect the engine block carefully. However, it is still recommended to be very careful and not to tamper with the components of the engine block, as this may aggravate the problem or divert the source of the malfunction. We suggest of course going to a mechanic for a more in-depth audit. Here are therefore step by step the constituents to check.

  • The first thing to do is check all hoses . They can be perforated or even detached.
  • You also have to look at the sensors and sensors of your engine block. It is however complicated to control their good functioning. Tutorials are easily found on youtube, and it usually requires electronic devices.
  • Perform a check of pressures hydraulic. Again, pressure testing requires appropriate equipment.

Idle malfunctions are common but are complex to diagnose. A visual check on the Toyota Prius gives the opportunity to have an idea, but it is more advisable not to tackle amateur DIY.