THIS UPDATES DIAGNOSTIC TEST INFORMATION IN THE 1990 GRAND PRIX SERVICE MANUALS SECTION 8A-31. USE THE ATTACHED REVISED DIAGNOSTIC PROCEDURES WHEN SERVICING THE COOLANT FAN.
THE COOLANT FAN PROCEDURES ON THE FOLLOWING PAGE HAVE BEEN REVISED FOR THE FOLLOWING SERVICE MANUALS.
1990 PONTIAC GRAND PRIX PAGE 8A-31-7.
PLEASE UPDATE YOUR COPIES OF THE SERVICE MANUALS.
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.