GM Service Manual Online
For 1990-2009 cars only

FAILURE TO RUN COLD/HESITATES (NEW PROM MAY CORRECT)

Model and Year: 1988-89 "J" AND "L" CARS WITH 2.0L (VIN CODE 1) ENGINE AND 125C TRANSAXLE

TO: ALL CHEVROLET DEALERS

Customer comments of cold driveability roughness, hesitation or failure to run after a cold start and driveaway maneuver may be repaired with the installation of a new cal PROM, listed below:

BROADCAST SCANNER USAGE PROM P/N CODE I.D. ----- -------- ---- ---- 1988 J All 16136810 ARRJ 6821 1988 L All 16136812 ARRK 6831

NOTE: The 1988 L-car proms only apply to units with VIN sequence 500000 or greater.

1989 J Federal 16137088 ARRL 7011 1989 J California 16137094 ARRM 7021 1989 L Federal 16137098 ARRN 7031 1989 L California 16137102 ARRP 7041

Parts are currently available from GMSPO.

Labor Operation Number: T1421 Labor Time : .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.