Mechanics is a rather methodical profession. However, if there is one problem that is sometimes hard to explain, it is unstable idling or loss of acceleration. Whether it concerns a Kia Optima 2 Sw, or any model of automobile. However, we are here to help you. In fact, the cause can come from many components of the engine, or even electronic. To find the source of the breakdown of this Kia Optima 2 Sw, you must follow a strict methodology. But above all, we will see the signs of a slowdown idle.problem-idle-Kia-Optima-2-Sw

Idling problem on a Kia Optima 2 Sw: the symptoms

Un unstable idle close to stall . This is undoubtedly the most recurring concern in slow motion. This impression that the engine may stall while driving at normal speed, or that the Kia Optima 2 Sw grazes . It may indeed happen that stalling occurs. It is therefore a real danger for the driver. In this case, don't wait too long to worry about it. We suggest that you carry out your own diagnosis via the paragraph below. We can also understand that your Kia Optima 2 Sw has a concern for acceleration . More report this time with a concern of idling. Losses of power and acceleration holes can happen for multiple causes. We must avoid confusing these two phenomena. We invite you to browse our files concerning power losses.

Kia Optima 2 Sw: develop a diagnosis to understand the origin of idling

You have to start by carrying out various very easy checks, just before going into a little more detail.

Idling of the Kia Optima 2 Sw: exhaust fumes.

A black smoke escapes from the exhaust. This usually means that the air and fuel mixture is bad. Or that your air filter is clogged. In both situations, a problem of idling can happen on your Kia Optima 2 Sw. White smoke escapes from the exhaust. In this case also it can be due to a defect. White smoke is usually water vapor. It is thus possible that it is a concern of admission or of the cylinder head gasket.

Engine components check

As we have seen, a slowdown problem on this Kia Optima 2 Sw can come from several points. So try to inspect the engine carefully. However, it is advisable to be extremely careful and not to tamper with the components of the engine, as this could aggravate the problem or conceal the nature of the problem. We recommend of course to go to an auto repairer for a more suitable check. These are therefore point by point the elements to be examined.

  • The first thing to do is check all of the hoses . They can be pierced, or even detached.
  • It will also be necessary to examine the sensors and sensors of your engine. It is however complicated to control their good functioning. You can find tutorials on youtube, and it usually requires electronic devices.
  • Perform a control of pressures hydraulic. Again, pressure testing requires appropriate tools.

Idle malfunctions are common however are complex to recognize. A visual check on your Kia Optima 2 Sw will allow you to have an idea, however it is more advised not to tackle amateur DIY.