WIND BUFFETING WITH SUNROOF OPEN (TRIM FRONT RAIL STOPS)

Subject: WIND BUFFETING WITH SUNROOF OPEN (TRIM FRONT RAIL STOP)

Models Affected: 1992 BONNEVILLE MODELS ------------------------------------------------------------------------------

CONDITION:

---------- Some 1992 Bonneville models with sunroof option (CF5) may have wind buffeting in the vehicle with the sunroof in the open position.

CAUSE:

------- This condition may be caused by a wind deflector with insufficient vertical angle to prevent deflector vibration.

SERVICE PROCEDURE:

The following is to be performed to both sides of the sunroof module:

1. Push out pin #106 toward the center of the vehicle. See Figure 1.

2. Raise deflector bracket #103 and remove spring #105.

3. Trim 1mm off the front rail #49 at the deflector bracket contact surface. See close-up in Figure 1. This will allow the deflector to reach a steeper angle, raising the deflector 3mm in the center.

4. Reinstall spring #105.

5. While holding the spring in place, position the deflector bracket #103 over the spring.

6. Reinstall pin #106 which is a press fit. The pin must go through spring #105 for proper function.

WARRANTY INFORMATION:

Labor Operation: T5269

Labor Time: .3 hr.

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.