DRIVEABILITY CORRECTIONS EGR AND PROM INFORMATION. Pontiac LeMans 1982

For 1990-2009 cars

# DRIVEABILITY CORRECTIONS EGR AND PROM INFORMATION

A NEW CALIBRATED PROM AND EGR VALVE HAVE BEEN RELEASED FOR PRODUCTION AND SERVICE ON 1982 REGALS EQUIPPED WITH FEDERAL 3.8L ENGINES. THESE PARTS ARE TO BE USED FOR DEALER CORRECTION OF ANY ONE OF OR COMBINATION OF THE CONDITIONS LISTED BELOW, WHEN IT HAS BEEN DETERMINED THAT AFFECTED SYSTEMS ARE WITHIN SPECIFICATION AND ARE FUNCTIONING NORMALLY. A.CHUGGLE AT 40-45 MPH (USE PROM ONLY) B.TIP-IN HESITATION (USE EGR VALVE ONLY) C.COLD DRIVEABILITY HESITATION (USE PROM AND EGR) BEFORE A DECISION IS MADE TO INSTALL A PROM AND/OR AN EGR VALVE, VEHICLE SHOULD BE ROADTESTED, IF POSSIBLE, FOR THE OWNER DESCRIBED CONDITIONS AND VEHICLE SYSTEMS CHECKED TO DETERMINE IF ADJUSTMENTS ARE WITHIN SPECIFICATIONS. UNLESS ALL AREAS LISTED ON THECHECKLIST ARE CORRECT, A PROM AND/OR EGR VALVE WILL NOT BE EFFECTIVE FOR THE PURPOSE INTENDED. USE THE ATTACHED CHECKLIST FOR ASSISTANCE WHEN NECESSARY. (SEE BULLETIN) ANY TIME ONE OF THE THREE (3) OR ALL THREE CONDITIONS ARE ENCOUNTERED AND THE ATTACHED CHECKLIST DID NOT ASSIST IN CURING THE CONDITION, USE THE PROM AND/OR EGR, OR USE BOTH FOR ALL THREE (3) CONDITIONS. ONE PART CAN BE INSTALLED WITHOUT THE OTHER. ZONE AUTHORIZATION IS REQUIRED PRIOR TO USAGE OF THE PROM AND/OR EGR VALVE. PARTS ORDERING INFORMATION: OBTAIN THE REQUIRED PART(S) FROM YOUR NORMAL GM PARTS DIVISION WAREHOUSE: A.PROM 1225704 B.EGR VALVE 17078431

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.