What Causes Car Vibration When the AC is On?
1 Answers
Car vibration when the AC is on is primarily a symptom related to the throttle body and engine. The detailed causes and solutions for car vibration when the AC is on are as follows: 1. Carbon buildup in the throttle body: Turning on the AC increases the engine load, prompting the engine control unit to command a larger throttle opening to maintain idle stability. Excessive carbon buildup in the throttle body can cause unstable idling, leading to vibration. Solution: Clean the throttle body. 2. Poor quality rubber components inside the engine mounts. Solution: Visit a 4S shop to install higher-quality rubber components inside the engine mounts.