S10/T10 P/U 2WD V6-262 4.3L VIN W CPI (1992)
Fan Clutch: Customer Interest
Cooling - Cold Start Fan Noise Higher Than Normal
Number:
92-118-6B
Section:
6B
Date:
FEB. 1992
Corporate Bulletin No.: 166203
ASE No.: A8
Subject:
COLD START FAN NOISE
Model and Year:
1988-92 S/T TRUCKS WITH 4.3L ENGINES
Owners of some 1988-1992 S/T vehicles equipped with a 4.3L engine (RPO LB4 or L35) and air conditioning (RPO C60) may experience higher than
normal fan noise upon oold start up. This condition may be due to incorrect engagement of the fan clutch. The condition may be corrected by installing a
revised fan clutch (P/N 15672779).
Vehicles built after the following VIN Breakpoints have the new fan clutch installed in production:
Plant
VIN
Moraine
1GNDT13Z3N2151684
Shreveport
1GCCS19Z3N8156864
Pontiac West
1GNCS18Z2N0125676
SERVICE PROCEDURE:
Refer to section 6B1 "FAN/FAN CLUTCH REPLACEMENT" in the appropriate S/T Service Manual for removal and installation of the fan clutch.
