A/T - Fluid Leak at Converter Housing

File In Section: 7 - Transmission

Bulletin No.: 67-71-39

Date: February, 1996

Subject:
Transmission Fluid Leak (Add Teflon Sealant to Bolt)

Models:
1996 Chevrolet and GMC C/K, M/L, S/T, G Models
1996 Oldsmobile Bravada with 4.3L Engine VINs W, X - RPOs L35, LF6) and Hydra-Matic 4L60-E Transmission (RPO M30)

Condition








(Figures 1 and 2)

Some owners may experience a fluid leak at the converter housing. Starting November 4, 1995 (Julian Date 308) all units are built using a new bolt with teflon sealant added.

Cause

Case porosity.

Correction





(Figures 3)

During any procedure requiring a transmission removal, only apply liquid teflon sealant (or equivalent) to the converter housing bolt indicated in Figures 2 and 3. The remaining seven (7) bolts do not require sealant.

Parts Information

Part # Description

12346004 Sealant, pipe w/teflon

Parts are currently available from GMSPO.

Warranty information

For vehicles repaired under warranty, use:

Labor
Operation Labor Time

K7040 Use published labor operation time.