DIESEL HARD OR NOT START CONDITION - CONTROLLER RELAY

VEHICLES AFFECTED: 1985 Models Equipped With Diesel Engines

You may experience a hard or no start condition on some diesel engines. The controller may become inoperative due to loose terminal nuts at the controller relay. The two terminal nuts attach both the red wire that goes to the battery and the green wire that feeds the glow plugs.

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.