WINDNOISE, DOOR SQUEAKS AT A- PILLAR (SERVICE PROCEDURE)

VEHICLES AFFECTED: 1990 CHEVROLET LUMINA SEDAN

Customer comments of windnoise or door squeaks at the A-pillar on 1990 Chevrolet Lumina sedans may be addressed using the following procedure:

IMPORTANT: For windnoise condition, vehicles with VINs from L9142438 to L9149745 may be affected. Light squeak vehicles prior to VIN L9142438 may be affected.

1. Examine the windshield reveal moulding to determine if it has a lip as shown in Figure 1. If it DOES NOT have a lip, proceed to Step 3.

2. Using a suitable knife, start at the top of the moulding and CAREFULLY remove the lip from the moulding, See view A. It is important to cut as straight as possible in order to insure suitable appearance.

3. Open the front and rear doors and remove the two attaching screws at the rear of auxiliary weather strip, and remove weather strip.

4. Remove approximately 250 mm (10 in.) of butyl tape from the rear portion of the attaching flange to the weld joint line (SILICONE BRONZE JOINT) See Figure 2.

5. Reinstall the two rear attaching screws. With a light hammer, tap the screws inward until they are flush with the body.

6. Remove and discard the screws.

7. Lightly coat plastic retainers, P/N 8731909 with Permatex Clear Super Auto Seal #84 and insert into screw holes.

8. Reinstall new auxiliary weatherstrip, P/N 10148886 (Right Hand) P/N 10148887 (Left Hand).

9. Repeat for other side.

Use most applicable Labour Operations and time from the Canadian Labour Time Guide.

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.