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For 1990-2009 cars only

DOOR GLASS AIR LEAKS NEW DOOR GLASS AND RUN CHANNEL

DOOR GLASS

VEHICLES AFFECTED: 1988 C/K -----------------

To reduce door glass water and air leaks on the 1988 C/K model, a new door glass and run channel seal has been deveolped. The upper rear corner of the new glass is square shaped, while the old style is more rounded (Figure 1). When installing a new door glass, a new run channel seal and window retainer ("blow-out-clip") must be installed. A new door glass with the old channel seal, or vice-versa, will not work.

SERVICE PROCEDURES:

Glass and Run Channel Seal Replacement

1. Section 10A1-14 of the 1988 C/K Service Manual identifies the procedures for door glass and run channel seal replacement.

Window Retainer ("Blow-Out-Clip") Replacement

1. Remove run channel seal. 2. Using a 1/8" drill bit, drill the heads of the two rivets.

Notice: Exercise care to remove only the head of the rivet.

The labor operation and labor time to replace door glass, run channel seal and window retainer is:

Use the most applicable labour operation from the Canadian Labour Time Guide.

NEW PARTS INFORMATION

Description Part Number ----------- -----------

L.H. Door Glass Tinted 15612851 L.H. Door Glass Clear 15612849

R.H. Door Glass Tinted 15612852 R.H. Door Glass Clear 15612850

L.H. Run Channel Seal 15612981 R.H. Run Channel Seal 15612982

Retainer ("Blow-Out-Clip") 15612855

Rivets (2 each side) .125 x .063 x .125

The new door glass went into production beginning with the following VIN breakpoints:

Chevrolet JE142407 GMC JE514159

Chevrolet J1169488 GMC J1526010

Chevrolet JZ144692 GMC JZ513360


Object Number: 87742  Size: MF

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.