chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

All Technical Service Bulletins for Blower Motor: > < A/C - Noise From HVAC in Cold/Cool Weather
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5. Install the new blower motor control processor, GM P/N 20773421.
6. Tighten the blower motor control processor screws.

Tighten
Tighten the screws to 1.5 Nm (13 lb in).

7. Connect the blower motor control processor wire harness connector.
8. Install the right side I/P closeout panel. Refer to Instrument Panel Insulator Panel Replacement - Right Side.

Parts Information

Warranty Information

For vehicles repaired under warranty, use the table above.

Disclaimer

All Technical Service Bulletins for Blower Motor: > < A/C - Noise From HVAC in Cold/Cool Weather