REVISED DIAGNOSTIC CHARTS '86 PRELIMINARY SHOP MANUALS

VEHICLES AFFECTED: All 1986 Models

Attached are copies of certain corrected 6E-1 Diagnostic Charts affecting all five car divisions' 1986 Preliminary Service Manuals. These corrected charts will automatically appear in all final '86 manuals, however, due to the time lag between preliminary and final manuals, we are publishing the information at this time.

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.