THIS BULLETIN SERVES TO ENHANCE EGR DIAGNOSTICS (CODE 32) IN THE 1990 5.7L (VIN 8) "Y" CARLINE AND 1990-91 5.0L (VIN F) AND 5.7L (VIN 8) "F" CARLINE SERVICE MANUALS, SECTION 6E3 "DRIVEABILITY AND EMISSIONS."
DISCLAIMER
COPYRIGHT 1991 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.
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.