IMPROPER SEATING OF SIDE DOOR WINDOW (NEW SEATING CLIP)

Model and Year: 1988-90 C/K 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 comments 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.

PARTS REQUIRED:

P/N DESCRIPTION QUANTITY REQUIRED

15667246 CHANNEL CLIP 1 per door SIDE WINDOW

15562787 RIVET 2 per door (1/8" x 1/4" or longer)

Parts are currently available through GMSPO.

LABOR OPERATION INFORMATION (for vehicles repaired under warranty):

Labor Operation: T8115

Labor Time: .3 hrs.

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.