Engine/A/C - Cooling Fan Inoperative

87buick13

Bulletin: 87-1-16

Date: Dec., '87

Ref. No.: 87-208-1

Corp. Ref. No.: 738105
SUBJECT: INOPERATIVE COOLING FAN WITH HIGH A/C HEAD PRESSURE


MODELS AFFECTED: 1987 CENTURYS WITH THE LB6 2.8L MPFI ENGINE (VIN CODE W) AND C60 AIR CONDITIONING
Condition: The engine cooling fan may not operate when the A/C head pressure is high, which could lead to insufficient A/C cooling, or an overheated engine.

Cause: The retaining ramp on the cooling fan pressure switch is backwards. This was changed in production early in the 1988 model year by first using a tie-strap and then by changing the ramp on the switch.



Correction: Use a plastic tie-strap to secure the connector to the switch (See Illustration). Replacement of the switch is not necessary.
WARRANTY INFORMATION

Labor Operation Number: T1266
Labor Time: .2 Hours
Trouble Code: 92