NO START OR HARD START REVISED DIAGNOSTIC CHART

REVISED IGNITION SYSTEM CHECK CHART C-4B

MODELS AFFECTED: 1986 MODELS EQUIPPED WITH 2.0L AND 2.5L --------------- TBI ENGINES (VIN CODES P, R AND U)

The diagnostic chart, on the reverse side of this bulletin, replaces the CHART C-4B on pages 6E2-C4-5, and 6E2-C4-7 of the 1986 Buick Chassis Service Manual. Please make this change in your copy of the Service Manual.

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.