This bulletin cancels and replaces Dealer Technical Bulletin 91-T-174, which should be discarded.
This bulletin updates Chart A-3, "Engine Cranks But Will Not Run," (Page 2 of 2) in Section 6E3. The revised chart addresses the possibility of a fault in CKT 430 causing the "Cranks But Won't Run" condition.
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.