What Causes the Car to Shake When the Air Conditioner is On?

[KimberlyMarie]

Vehicle shaking when the air conditioner is on is caused by a dirty throttle body, which has the following effects: 1. Insufficient power during driving; 2. Increased fuel consumption; 3. Engine stalling. The reasons for a dirty throttle body are: 1. Poor filtration by the air intake filter and high dust levels in the surrounding environment; 2. Use of low-quality engine oil with high evaporation rates; 3. Excessive oil vapor and impurities in the crankcase; 4. Dust being drawn in due to an improperly sealed throttle body after engine shutdown. The cleaning method for the throttle body is: 1. Remove the plastic heat shield on the engine; 2. Take off the throttle body; 3. Use a solvent to dissolve carbon deposits, then wipe dry with a towel after 2 minutes; 4. Let the engine idle for 3 minutes.