For 1990-2009 cars

# WIND NOISE AT FRT. DOOR GLASS (ADD FOAM WEATHERSTRIP)

#### SUBJECT: WIND NOISE AT THE REAR OF THE FRONT DOOR GLASS - B-PILLAR AREA (ADD FOAM WEATHERSTRIP)

VEHICLES AFFECTED: 1991-92 OLDSMOBILE, BUICK C-CAR 1992 PONTIAC, OLDSMOBILE, BUICK H-CAR

This bulletinis being revised to change the source and catalogue number for foam weatherstrip in step 3.

#### CONDITION:

--------- Some 1991 and 1992 "C" and 1992 "H" cars may exhibit a wind noise at the rear edge of the front door glass from the belt line to the roof.

#### CORRECTION:

---------- When the wind noise has been determined to be along the rear vertical edge of the glass, and gapping between the glass and the outer sealing strip of the glass run channel (see illustration) is evident, the following steps should be followed:

1. Lower the glass to the full down position.

2. Pull the rear vertical section of the glass run channel from the applique.

3. Add a thin strip of Kent Industries Exterior Door Foam Weatherstrip Catalogue No. 401 or equivalent, as shown in the illustration. This foam tape material is available at most hardware and building supply stores. The foam tape should be approximately 1mm thick and 10mm wide. Cut length to 450mm (17 1/2 inches) prior to attaching to the glass run channel. The foam tape should run from the top of the glass run channel to the bottom on the outboard side. When the run channel is reinstalled, the tape should shim the sealing lip out enough to contact the glass (see illustration).

4. Reinstall the glass run channel into the applique and cycle the glass several times (with engine running) to assure proper operation. Assure the gap between the glass sealing lip of the run channel has been eliminated.

#### WARRANTY INFORMATION

For vehicles repaired under warranty use: Labour Time: .2 hr. for one door or) These times refer to the .3 hr. for both doors.) foam tape correction only

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.