GM Service Manual Online
For 1990-2009 cars only

POOR COLD DRIVEABILITY/SAG/HES PROM INFORMATION CORRECTION

SOME 1986 GRAND AM'S EQUIPPED WITH 3.OL MFI V6 ENGINES (VIN CODE L)

SOME 1986 GRAND AM'S EQUIPPED WITH A 3.OL MFI V6 ENGINE (VIN CODE L), MAY EXPERIENCE A CONDITION DESCRIBED AS POOR COLD DRIVEABILITY, TIP-IN SAG, HESITATION OR SURGE.

IF ANY OF THESE CONDITIONS ARE ENCOUNTERED, AND CANNOT BE CORRECTED USING CURRENTLY PUBLISHED DIAGNOSTIC AND SERVICE INFORMATION, IT MAY BE NECESSARY TO INSTALL A NEW SERVICE PROM, PART NO. 16059958.

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.