For 1990-2009 cars only
HVAC Compressor Flapping Noise - keywords ac vibration
| Subject: | HVAC Compressor Flapping Noise - keywords a/c vibration |
| Models: | 2007 Chevrolet Silverado |
| 2007 GMC Sierra |
This PI was superceded to update recommendation/instructions. Please Discard PIT4266.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some owners may comment of a flapping type noise when the a/c compressor is engaged.
Recommendation/Instructions:
At this time do not replace the a/c compressor for this noise. This concern has been found to be normal operating noise of the A/C compressor.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
