Symptoms - HVAC Systems - Automatic. Chevrolet Caprice WM 2009

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Caprice WM 🢒 Body Systems 🢒 Fixed and Moveable Windows 🢒 Symptoms - HVAC Systems - Automatic

Important: Review the system operation in order to familiarise yourself with the system functions. Refer to:

•	Air Delivery Description and Operation .

•	Air Temperature Description and Operation .

•	Inspect for aftermarket devices which may affect the operation of the HVAC System. Refer to Checking Aftermarket Accessories .

•	Inspect the easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

•	Verify the A/C compressor turns and is not seized.

•	The A/C compressor will not operate in cold outside air temperatures. Refer to Air Temperature Description and Operation .

•	The following conditions may 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:

Blocked or damaged air inlet or outlet vents.

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

•	Too Cold in Vehicle .

•	Too Hot in Vehicle .