IMPROPER SEATING OF SIDE DOOR WINDOW (NEW SEATING CLIP)

MODELS: 1988-90 C/K 1,2,3 TRUCKS

Some 1988-90 C/K Trucks may experience a condition where the window will not seat properly in the window channel when raising the window at highway speed (ABOVE 45 MPH). This condition can create a poor window seal and customer may comment regarding increased wind noise. To correct this condition, a new window channel clip with a revised ramp angle has been released.

REPAIR PROCEDURE

1. Roll down window.

2. Pull back window weatherstrip to expose channel clip rivets.

3. Drill out rivets and remove channel clip.

4. Position new channel clip where old one was and rivet using rivet part number 15562787 or comparable.

5. Reposition weatherstrip.

SERVICE PARTS INFORMATION

Quantity P/N Description Required

15667246 Channel Clip Side Window 1 per door 15562787 Rivet 1 per door (1/8" x 1/4" or longer)

Parts are currently available through GMSPO.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Operation: T8115 Labor Time: .3 hrs.

NOTE: Labor Operation is coded to base vehicle coverage in the warranty system.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.