For 1990-2009 cars

# DIESEL GLOW PLUG DIAGNOSIS REVISION INFORMATION NO START

A NEW PROCEDURE FOR CHECKING DIESEL ENGINE GLOW PLUGS IS ON PAGE 2 OF THIS BULLETIN. THIS PROCEDURE IS TO PREVENT THE POSSIBILITY OF OPERATIVE GLOW PLUGS BEING DIAGNOSED AS INOPERATIVE. THE NEW PROCEDURE REVISES THE PROCEDURE "WAIT LAMP AND GLOW PLUG NORMAL - ENGINE WON'T START" COVERED ON THE FOLLOWING PAGES OF THE 1982 SERVICE MANUALS: MANUAL 1982 CHASSIS SERVICE - REGAL LESABRE, ELECTRA, RIVIERA PAGES 6A5-11, 6A5-15, 6A6-12 MANUAL 1982 CHASSIS AND BODY SERVICE CENTURYS AND SKYLARKS PAGES 8A-137

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.