Visual/Physical Inspection
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect for aftermarket devices which could affect the operation of the HVAC System. Refer to CHECKING AFTERMARKET ACCESSORIES .
- Inspect the system components which are easily accessible or visible for obvious damage or for conditions which can cause the symptom.
- Verify the A/C compressor clutch turns freely and is not seized.