Skylark L4-138 2.3L SOHC VIN 3 MFI QUAD 4 (1992)
Clutch: All Technical Service Bulletins
A/T - No Reverse or Slipping in Reverse
Bulletin: 93-73T40-2
Date:
Nov., '92
Ref.No.: 93-43-73T40
Corp.Ref.No.: 277143
SUBJECT:
NO REVERSE OR SLIPPING IN REVERSE (INSTALL NEW RETURN SPRING AND SPIRAL RETAINING RING)
MODELS AFFECTED:
1992-93 SKYLARK AND CENTURY MODELS
CONDITION:
Some 1992-1993 HYDRA-MATIC 3T40 transaxles may slip in reverse, or have no reverse gear.
CAUSE:
Internal fluid leaks in the lo and reverse clutch circuit can cause the lo and reverse clutch piston to partially apply when the transaxle is in a drive gear.
The current return spring load may not be great enough to keep the piston from partially applying.
CORRECTION:
Replace the lo and reverse clutch return spring, spring retainer and snap ring with a new design clutch belleville return spring and spiral retaining ring.
The new clutch return spring has a higher spring rate to keep the piston from partially applying.
