ENGINE DETONATION/SPARK KNOCK (REPLACE PROM)

SUBJECT: ENGINE DETONATION/SPARK KNOCK (REPLACE PROM)

MODELS AFFECTED: 1992 ROADMASTER SEDAN 1992 ROADMASTER ESTATE WAGON

CONDITION:

---------- Some owners of 1992 Buick Roadmaster sedans/wagons may comment of engine detonation (spark knock).

CORRECTION:

----------- The calibration has been refined to address these comments. Replace the PROM with the following part number.

Broadcast Scanner Part Code I.D. Number Body Application --------- ------- ------ ---- ----------- BATJ 5901 16175898 B 5.7L L05 Nationwide Emissions

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

Labor Operation No.: T0500 Labor Time: 0.5 hrs.

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.