Why does the car engine shake when the air conditioning is turned on?
1 Answers
When the air conditioning is turned on during normal use, the car engine shakes because the operation of the air conditioning compressor increases the engine load, causing the engine speed to drop and resulting in body vibration. Idle speed acceleration device: Most vehicles are equipped with an engine air conditioning idle speed acceleration device. When the air conditioning compressor is working, the air conditioning system simultaneously sends a command to increase the engine speed to the required range, solving the problem of engine shaking when the air conditioning is turned on. Main faults: Engine surging accompanied by shaking is a common and tricky car fault. The main reason is excessive tire inflation. Appropriately increasing the tire inflation requirement can reduce rolling resistance and save fuel when the tire is inflated.