S10/T10 P/U 2WD V6-262 4.3L VIN W CPI (1992)
Torque Converter Clutch: Customer Interest
A/T - Early Converter Clutch Engagement
Number:
92-75-7A
Section:
7A
Date:
JAN. 1992
Corporate Bulletin No.: 137107
ASE No.: A2
Subject:
EARLY TRANSMISSION CONVERTER CLUTCH APPLY
Model and Year:
1992 S/T TRUCKS WITH 4.3L ENGINE AND 4L60 AUTOMATIC TRANSMISSION
Condition:
Some owners of 1992 S/T trucks with 4.3L (LB4) engines and automatic transmissions may comment on early transmission converter
clutch (TCC) engagement, TCC engagement just after the 2-3 upshift, or lack of power.
Cause:
The torque converter clutch is applied at low speeds during some driving conditions.
Correction:
To correct this condition install a new calibration PROM which raises the TCC apply speed. This calibration will increase the TCC
apply speed on a 1992 vehicle to be similar to a 1991 vehicle. (See below)
Part
PROM
Scanner
Number
Application
Broadcast
I.D.
16175285
Federal
BARL
5551
16175286
California
BARM
5561
Parts are expected to be available on January 27, 1992. In case of limited inventory, parts will be placed on 400 Control to waive VIP surcharges. Only
verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. However, the part will be shipped premium transportation
at dealer's expense and all other order types will be placed on backorder until the 400 control is removed.
Labor Operation Number:
T0500
Labor Time:
0.8 Hour
