SHAKE OR VIBRATION IN FRONT END (REPLACE ENGINE MOUNT)

SUBJECT: SHAKE OR VIBRATION IN FRONT END ON SMOOTH ROADS (REPLACE ENGINE MOUNT)

VEHICLES AFFECTED: 1992 "E/K" MODELS

CONDITION:

--------- Some 1992 E/K models before the following VIN breakpoints may experience a condition of shake or vibration in the front end on smooth roads or heavier shake or vibration in front end on rough roads. The shake or vibration may be most noticeable through the steering wheel.

1992 E/K VIN Breakpoints: ------------------------ Cadillac Eldorado NU622816

Cadillac Seville NU827863

Buick Riviera NU408285

Oldsmobile Toronado NU305065

CAUSE:

----- This condition may be caused by an internal leak in the engine hydra-mount.

CORRECTION:

---------- To repair this condition replace the engine mount with P/N 22113023 on Cadillac Eldorados and Sevilles and with P/N 22113021 on Buick Rivieras and Oldsmobile Toronados.

For engine mount service procedure refer to Section 6A in the appropriate Service Information Manual.

For vehicles repaired under warranty use:

Labour Operation: J1500 under the appropriate 1992 Labour Time Guidebook.

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.