Diagnostic Information for Front Power Window Noisy or Inoperative
| Subject: | Diagnostic Information For Front Power Window Noisy or Inoperative |
| Models: | 2003-2004 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2003-2004 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2003-2004 GMC Sierra, Sierra Denali, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL |
This bulletin is being revised to close the engineering investigation and provide possible causes of the concern. Please discard Corporate Bulletin Number 03-08-64-037A (Section 08 -- Body and Accessories).
Due to the high number of window regulators being replaced for the front power window being noisy or inoperative and the returned parts indicating No Trouble Found, an engineering investigation was launched.
The engineering investigation has revealed two probable causes for the power windows being noisy or inoperative.
| • | There may be loose regulator bolts. This would primarily lead to a noise condition. |
| • | The regulator may not be positioned correctly. This could lead to a noise condition as well as causing the window to bind. |
ATTEMPT THE FOLLOWING REPAIRS PRIOR TO REPLACING THE WINDOW REGULATOR.
| • | Loose Regulator Bolts |
Tighten
Tighten the bolts to 9 N·m (80 lb in).
| • | Regulator Positioning -- verify that the regulator is positioned correctly. If binding, loosen the bolts and adjust. |
Tighten
Tighten the bolts to 9 N·m (80 lb in).
If neither of the above corrects the concern, proceed with published diagnostics found in SI.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
C9710 | Regulator, Window - Adjust | 0.6 hr |
