Cleaning the throttle regularly can prevent the hidden danger of high idle speed!

When your SUV has been driving for about 5 years, about 80 thousand kilometers, but the idle speed of the car has been very high, it is still the same to go to the 4S shop to change the idle motor. What caused it? How to deal with it?

In this case, if the idle speed is high and the idle motor has been replaced, further inspection should be carried out according to the following three points:

1. Check the vacuum tube of the engine for air leakage. If it is determined that there is air leakage, replace the vacuum tube.

2. Check whether the engine fault light of the instrument version is on. If engine failure is found, you should immediately go to the 4S shop for computer testing to see which component has problems that lead to unstable idle speed, including sensor failure, engine combustion failure, valve position sensor failure and so on.

3. Check whether the throttle valve is dirty. Whether there is carbon deposit in throttle and idle Madari. Unclean throttle will cause the throttle to close loosely or the idle stepper motor to get stuck, both of which will lead to high engine idle speed.