IDLE SURGE/DETONATION (REVISED CALIBRATION PROM)

SUBJECT: IDLE SURGE AND/OR ENGINE DETONATION (REPLACE PROM)

MODELS AFFECTED: 1992 ROADMASTER SEDAN 1992 ROADMASTER ESTATE WAGON

THIS BULLETIN IS BEING REVISED TO ADD A CONDITION AND TO SUPERSEDE BULLETIN NUMBER 92-6E-1. PLEASE REMOVE AND DISCARD BULLETIN NUMBER 92-6E-1.

CONDITION:

--------- Some owners of 1992 Roadmaster sedans/wagons may comment on idle surge and/or 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: 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.