MANUAL UPDATE- SEC. 1B&8A COOLANT FAN A/C PRESS. SWITCH

MODELS/YEARS 1990 EIGHTY-EIGHT AND NINETY-EIGHT MODELS

The following is being issued to correct inaccurate information in Sections 1 B and 8A. Please mark a reference to this bulletin in your copy of the appropriate service manual.

Pages Affected:

Page 1 B-24 Under Coolant Fan A/C Pressure Switch, Change "For Fan Switch Diagnosis, see Electrical Diagnosis Section 8A-46 or 8A-47" to "For Fan Switch Diagnosis, see Electrical Diagnosis Section 8A-31-2."

Page 8A-31-7 Coolant Fan - Correct Test G description to read: Coolant Fan and/or heavy duty Coolant Fan (with V08 Cooling System) does not run with A/C on, but does operate normally with engine hot.

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.