NO COLD START CAPABILITY WHEN GLOW PLUG WAIT IS NOT OBSERVED

VEHICLES AFFECTED: 1985-89 C/K/R/V/G/P TRUCKS W/6.2L DIESEL ENGINE

Some 1985-89 C,K,R,V,G and P-trucks with a 6.2L diesel engine may experience a "no-start" condition when cold.

The electronic glow plug controller P/N 12052153 (colour coded black), is responsible for several reported concerns at no start capability.

A new controller, P/N 12088520 (colour coded grey), is being released with improved circuit board components to address no start difficulty.

Part is currently available from CANSPO.

Use applicable labour operation number and time from the Canadian Labour time Guide.

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.