STALL DIAGNOSIS (GUIDELINES) COMPREHENSIVE DIAG. PROCEDURE

MODELS AFFECTED: SOME 1986-87 LESABRE, PARK AVENUE/ELECTRA, CENTURY AND RIVIERA MODELS WITH 3.8L SFI VIN 3 AND B ENGINES AND SOME 1986-87 LESABRE AND SKYLARK/SOMERSET MODELS WITH 3.0L VIN L ENGINES

IMPORTANT:

THIS BULLETIN DOES NOT SUPERSEDE BULLETINS 87-6E-8 (CORPORATION NO. 06501R), 86-6E-11 (CORPORATION NO. 606501), 86-6E-19A (CORPORATION NO. 606504R) AND 87-6E-20A (CORPORATION NO. 706505R).

This bulletin is designed to provide technicians specific guidelines to follow, utilizing comprehensive diagnostic procedures. The procedures clarify the current diagnostic steps to effectively repair the stalling conditions. Each dealer will receive the following items under separate cover for use by their driveability technicians.

Four copies of the Stall Diagnostic Bulletin

One pad of Service Advisor Questionnaires

Section 6E Diagnostic Information

The Stall Diagnostic Bulletin outlines specific inspections and tests that are to be performed. It also contains a questionnaire for use by the Service Advisor as well as Section 6E diagnostic information. The questionnaire is to be used to obtain all background information prior to performing any repairs and is to be attached to the technician's copy of the repair order.

Repairs performed beyond the emission warranty are to be reviewed by Zone Service Personnel.

WARRANTY INFORMATION:

Labor Operation: T5201 Labor Hours 1.7 add .3 for PROM, add .5 R&R (3.0L only) Throttle Body-to-Clean Trouble Code: 92

This time includes performing the basic diagnosis and repair procedures, and replacement of specified parts if needed (PROM, MAF, Crank Sensor and one wiring repair).

If additional parts and/or repairs are required, use applicable "J" labor operation numbers.

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.