SERVICE MANUAL UPDATE SEC 6E3 REVISED A3 CHART

SUBJECT: SERVICE MANUAL UPDATE - SECTION 6E3 - REVISED A3 CHART (PAGE 1)

MODELS AFFECTED: 1992 PARK AVENUE/ULTRA AND LESABRE 1991 PARK AVENUE/ULTRA 1991 RIVIERA/REATTA

This Bulletin updates Section 6E3, "Driveability and Emissions" Chart A3, "Engine Cranks But Won't Run" (Type I Ignition) (Page 1 of 4) for 1991 Park Avenue/Ultra and 1992 Park Avenue/Ultra and LeSabre models and Chart A3 (Page 1 of 3) for 1991 Riviera/Reatta models equipped with the 3800 (VIN L) engine. The revised chart addresses the possibility of an invalid PASS-Key fuel enable signal causing the "Cranks But Won't Run" condition. Pages affected are as follows:

1992 Park Avenue/Ultra and LeSabre . . . Page 6E3 - A-25 1991 Park Avenue/Ultra . . . . . . . . . Page 6E3 - A-25 1991 Riviera/Reatta . . . . . . . . . . Page 6E3 - A-23

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.