What Causes Steering Wheel Vibration When the AC is Turned On?

1 Answers
NathanLynn
07/30/25 1:28am
Introduction to the causes of steering wheel vibration when the AC is turned on: 1. A dirty throttle body affects the engine. When the AC is activated, it increases the engine idle load, leading to steering wheel vibration. 2. Steering wheel vibration when the AC is on may also occur due to insufficient vehicle power, especially in automatic transmission models. Methods to check for AC-induced vibration: 1. Inspect the high and low pressure of the AC system, as excessive pressure can cause a sudden increase in engine load. 2. Check the engagement of the AC electromagnetic clutch. 3. Examine whether the AC radiator is clogged with dirt. 4. Verify if there is an excess of refrigerant.
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