A/C - Difficult to Change Modes on Control
Bulletin No.: 03-01-38-005DDate: January 12,2006
TECHNICAL
Subject:
Difficult to Change HVAC Mode or Air Blows Through Upper Vents Only (Replace Foam on HVAC Mode Valve)
Models:
2003-2005 Chevrolet Cavalier
2003-2005 Pontiac Sunfire
Supercede:
This bulletin is being revised to add the 2005 model year. Please discard Corporate Bulletin Number 03-01-38-005C (Section 01 - HVAC).
Condition
Some customers may comment of difficulty in changing the HVAC (heating, ventilation and air conditioning) mode or that air blows through the upper vents only.
Cause
This condition may be caused by the foam on the HVAC mode valve (mode door) coming loose.
Correction
Technicians are to replace the foam on the HVAC mode valve (mode door) using the following procedure:
For Chevrolet Vehicles
1. Remove both instrument panel outer trim covers.
2. Remove the instrument panel trim pad.
3. Remove the instrument panel accessory trim plate.
4. Remove the air distributor duct.
5. Install a new piece of foam on the mode door valve, P/N 89018656. Refer to the instruction sheet that is included with the new part for detailed foam installation instructions and part illustrations.
6. Install the air distributor duct.
7. Install the instrument panel accessory trim plate.
8. Install the instrument panel trim pad.
9. Install both instrument panel outer trim covers.
10. Verify proper operation of the HVAC system.
For Pontiac Vehicles
1. Remove both instrument panel outer trim covers.
2. Remove the instrument panel upper trim pad.
3. Remove the instrument panel accessory trim plate.
4. Remove the instrument panel trim pad.
5. Remove the air distributor duct.
6. Install a new piece of foam on the mode door valve, P/N 89018656. Refer to the instruction sheet that is included with the new part for detailed foam installation instructions and part illustrations.
7. Install the air distributor duct.
8. Install the instrument panel trim pad.
9. Install the instrument panel accessory trim plate.
10. Install the instrument panel upper trim pad.
11. Install both instrument panel outer trim covers.
12. Verify proper operation of the HVAC system.
Parts Information
Warranty Information
Disclaimer