IDLE SURGE AND/OR ENGINE DETONATION (REPLACE PROM)

SUBJECT: IDLE SURGE AND/OR ENGINE DETONATION

MODEL and YEAR: 1992 CAPRICE WAGON WITH 5.7L ENGINE

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 92-93-6E, DATED FEB. 1992. A CONDITION HAS BEEN ADDED. ALL COPIES OF 92-93-6E SHOULD BE DISCARDED.

CONDITION:

--------- Some owners of 1992 Caprice wagons with the 5.7L (VIN 7, L05 V8) engine 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 Federal Emissions Chevrolet wagon Parts are currently available from GMSPO.

WARRANTY INFORMATION:

Labor Operation: TO500

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.