KNOCK NOISE FROM RIGHT FRONT OF VEHICLE (RPL. SPLASH SHIELD

SUBJECT: KNOCK NOISE FROM RIGHT FRONT OF VEHICLE (REPLACE RIGHT FRONT ENGINE SPLASH SHIELD)

VEHICLES AFFECTED: 1992 "N" MODELS 3.3L (VIN N - RPO LG7)

CONDITION:

Some owners of 1992 N cars with 3.3L engines may comment on a knocking noise coming from the right front of the vehicle. This noise can be misdiagnosed as an engine knock noise.

CAUSE:

The crankshaft pulley bolts may be contacting the right engine splash shield.

CORRECTION:

Replace right side engine splash shield if there is evidence the bolts contacted the splash shield. Use revised P/N 22587198, engine splash shield.

SERVICE INFORMATION:

1. Raise vehicle, refer to section OA in the service manual. 2. Remove right front tire and wheel assembly. 3. Remove right front engine splash shield. 4. Install right front engine splash shield. 5. Install right front tire and wheel assembly, refer to section 3E in the service manual. 6. Lower vehicle.

For vehicles repaired under warranty use:

Labour Operation: B0760 Labour Time: 0.4 Hours

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.