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HYDRA-MATIC Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak, Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)

Subject:HYDRA-MATIC® Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak, Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)

Models:2001-2008 GM Passenger Cars
with HYDRA-MATIC® Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)



This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin Number 08-07-30-009A (Section 07 - Transmission/Transaxle).


Condition

Some customers may comment on a transmission oil leak and/or that the transmission slips in gear.

Cause

An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid build-up at axle seal.

Correction

Important: DO NOT replace the transmission for above concerns.

Replace the third clutch housing with service P/N 8682114, which has revised bushing material to extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.

Parts Information

Part Number

Description

Qty

8682114

Housing, Third Clutch

1

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

K7568

Input Shaft/Third Clutch Housing and/or Seals - Replace

Use Published Labor Operation Time