GLOW PLUG OPERATION/DIAGNOSIS DESCRIPTION DIESEL GLOW PLUGS

THE 1986-1987 FORWARD MODEL SERVICE MANUAL WAS PUBLISHED WITHOUT A DESCRIPTION AND DIAGNOSIS OF THE DIESEL ENGINE GLOW PLUG SYSTEM. THE FOLLOWING INFORMATION WILL BE INCLUDED IN THE 1988 W4 SERIES SERVICE MANUAL. ------------------------------------------------------------------- A COMPLETE LISTING AND ILLUSTRATIONS WILL BE SENT TO CORP/CANADA. -------------------------------------------------------------------

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.