Turn on the air conditioner and it will shake. Turn it off and then turn it on.

The reason why turning on the air conditioner will shake the flameout is that the throttle valve is dirty and affects the engine. If the air conditioner is turned on again at this time, the idle speed of the engine will increase and the steering wheel will shake. So as long as the throttle is cleaned, this situation can be avoided.

When you don't turn on the air conditioner, the compressor doesn't work, and the throttle stays on normally, so the effect of dirty blockage is not amplified. But after you turn on the air conditioner, the engine load suddenly increases and the throttle opening increases. At this time, the shortcomings of dirt are magnified, and the throttle opening is stuck or can't be opened in the correct position, which leads to the blockage of air intake and finally evolves into engine jitter.

Matters needing attention

When the air conditioner is turned on, it causes idling jitter. Possible problems include ignition system, high compressor pressure, dirty throttle, engine carbon deposit, oil pump blockage, air conditioning failure and so on.

If the maintenance is carried out on time according to the regulations, the possibility of such problems can be reduced. It is recommended to fix such problems. I can feel whether the cleaning and maintenance are serious.