ENGINE STALL ON START-UP (DIAGNOSTICS/REPLACE MEMCAL)

Subject: ENGINE STALL ON START UP (DIAGNOSTICS/REPLACE MEMCAL)

Models Affected: 1989-90 GRAND PRIX MODELS WITH 3.1L (TURBO COUPE AND STE TURBO)

Condition: Some owners of 1989-90 W cars with 3.1L engines may request correction of an engine stall on start up.

Cause: Fuel and system component variability.

Correction: If the subject condition is found, then use the following procedure:

1. Perform diagnostics, per Section 6E of the Service Manual. Make any adjustments as required, or replace any defective parts.

2. If no other conditions were found using normal diagnostics, and the condition or conditions still exist, then replace the Memcal with the following part.

Part Number Description Code Scanner I.D. ---------- ----------- ---- ----------- 16172131 Memcal AZRC 0721

Parts are currently available from GMSPO.

Labor Operation Number : T0500

Labor Time : .4 Hour

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.