Visual/Physical Inspection

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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 in Wiring Systems.
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Verify the A/C compressor clutch turns freely and is not seized.
The A/C compressor will not operate in cold outside air temperatures. Refer to AIR TEMPERATURE DESCRIPTION AND OPERATION (2.2L) or AIR TEMPERATURE DESCRIPTION AND OPERATION (4.3L) .
The following could cause window fogging:
- Wet carpet or mats
- High humidity
- Interior water leak
- Blocked A/C evaporator drain tube
- Maximum passenger capacity
- Blocked body pressure relief valves
Inspect the air distribution system for causes of reduced air flow:
- Obstructed or dirty passenger compartment air filter, if equipped
- Blocked or damaged air inlet or outlet vents