Fulltext TSBs

Technical Service Bulletins

TSB
96-21-14
  • LEAK – 4R70W TRANSMISSION – EXTENSION HOUSING GASKET
Publication Date: OCTOBER 7, 1996

LIGHT TRUCK:
1997 F-150

This TSB is being republished in its entirety to include two (2) Figures.

ISSUE:

Leaking of transmission fluid may occur at the transmission extension housing on some vehicles. This may be due to loads on the transmission extension housing affecting the joint clamping load. This leak location is often misdiagnosed as a pan gasket leak.

ACTION:

Replace the transmission extension housing gasket with a revised Transmission Extension Housing Gasket (F6AZ-7086-A) and slot the holes in the rear bracket assembly (Figures 1 and 2). Refer to the following Service Procedure for details.




Figure 1 – Article 96-21-14




Figure 2 – Article 96-21-14

SERVICE PROCEDURE

Verify the area of leak. If leak is from the extension housing gasket, replace with the revised steel-backed Transmission Extension Housing Gasket (F6AZ-7086-A). Refer to the 1997 F-150 Workshop Manual, Section 307-01A, for transmission extension housing gasket replacement procedure.

It is very important that the following Note be followed. If the Note is not followed a repeat repair could result:

NOTE:DURING REASSEMBLY OF THE EXHAUST SYSTEM/TRANSMISSION BRACKET, TIGHTEN NUTS ON EXHAUST SYSTEM END FIRST. INSTALL AND TIGHTEN THROUGH BOLTS TO EXTENSION HOUSING MOUNT FLANGE LAST. IF NECESSARY, SLOT HOLES IN BRACKET (FIGURES 1 AND 2), UP TO 3mm (0.125″) MAXIMUM AXIALLY FRONT TO REAR TO PROVIDE CLEARANCE FOR EXTENSION HOUSING MOUNT BOLT INSTALLATION. THE PURPOSE OF THIS IS TO PREVENT PRELOADING THE JOINT ON THE TRANSMISSION EXTENSION HOUSING-TO-CASE FLANGE.


PART NUMBERPART NAME
F6AZ-7086-ATransmission Extension Housing Gasket

OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

96-18-6

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
962114AReplace Transmission Extension Housing Gasket1.9 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
5E26977

OASIS CODES:

501000, 502000, 504000, 510000