HESITATION/STALL AFTER COLD START-NEW PROM MAY REPAIR

MODELS/YEARS 1986 CUTLASS CIERA WITH 2.8L (VIN W) AND AUTO. 3-SPD. TRANSAXLE

Some owners of 1986 Cutlass Ciera models with 2.8L multi port fuel injection (MPFI) engine and a 3-speed automatic transaxle may experience a stall after cold start or an engine hesitation during a cold driveaway.

To service this condition, which generally occurs at approximate temperatures of 50 - 70 degrees Fahrenheit complete the diagnostic procedures per Section 6 of the Service Manual. Specific attention should be given to the following items and repair as required:

1. Loose or leaking air duct between mass airflow (MAF) sensor and throttle body.

2. Low base idle air rate.

3. Openings in the EGR transfer tube.

If the condition persists, replace the PROM with one of the following service PROMS, which may be obtained from GMSPO. (See the following chart).

IMPORTANT: The new service PROMS are for Cutlass Ciera models with a 2.8L port fuel injected engine and a 3-speed automatic transaxle.

PROM EMISSION SCANNER SYSTEM TRANSAXLE A/C I.D. PART NUMBER ------ --------- --- ---- ------------ CUTLASS CIERA COUPE/SEDAN ------------------------- Federal F17 Yes 7811 16137795

Federal F17 No 7661 16137415

California F17 Yes 7431 16137337

California F17 No 7441 16137338

Federal F75 Yes 7451 16137339

Federal F75 No 7461 16137342

California F75 Yes 7471 16137343

California F75 No 7581 16137367

CUTLASS CRUISER

Federal F17 Yes 7481 16137344

Federal F17 No 7491 16137345

California F17 Yes 7501 16137346

California F17 No 7511 16137347

Federal F75 Yes 7521 16137348

Federal F75 No 7531 16137349

California F75 Yes 7541 16137350

California F75 No 7551 16137352

Parts are currently available through GMSPO.

WARRANTY INFORMATION:

Labor Operation Number: T1417 Labor Time: .5 Hours Trouble Code: 92

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.