A/T - E4OD No 2nd - 3rd Gear Upshift

Article No.
98-16-7

08/17/98

TRANSMISSION - E4OD - NO 2-3 UPSHIFT

LIGHT TRUCK:
1990-94 BRONCO, ECONOLINE, F-150, F-250, F-350, F-53





This TSB article is being republished in its entirety to revise the separating plate notches shown in Figure 2.

ISSUE

Some vehicles may exhibit a no 2-3 upshift condition. This may be the result of cross-leakage caused by distortion of the control valve body separating plate.

ACTION

Perform diagnosis and, if necessary, replace the control valve body separating plate. Refer to the following Service Procedure for details.

SERVICE PROCEDURE





1. Perform diagnostics as outlined in the appropriate Service Manual. Refer to Figure 1 for the models affected.

2. If condition still exists, remove the control valve body separating plate.

a. Remove both separating plate gaskets.

b. Wipe excess oil.

c. Examine the separating plate for deformation in the intermediate band servo area, Figure 2.

NOTE
THE SEPARATING PLATE GASKETS MUST BE REMOVED TO SEE THE DISTORTION.

3. If distorted, replace the separating plate with a new Control Valve Body Separating Plate (F4TZ-7A008-A).

4. Install new Separating Plate Gaskets (F4TZ-7C155-A and F4TZ-7D100-A) and a new Oil Pan Gasket (E9TZ-7A191-A).

PART NUMBER PART NAME

F4TZ-7A008-A Control Valve Body Separating Plate

F4TZ-7O155-A Control Valve Body Separating Plate Gasket

F4TZ-70100-A Control Valve Body Separating Plate Gasket

E9TZ-7A191-A Oil Pan Gasket

OTHER APPLICABLE ARTICLES: NONE

SUPERSEDES: 94-7-16

WARRANTY STATUS: Eligible Under The Provisions Of Basic And Powertrain Coverage For 1990-91 Model Year Vehicles And Bumper To Bumper Warranty Coverage For 1992-94 Model Years

OPERATION DESCRIPTION TIME

981607A Perform Electronic 1.3 Hrs.
Transmission Diagnosis

981607B Additional Time To 1.2 Hrs.
Replace Control Valve
Body Separating Plate

DEALER CODING
CONDITION
BASIC PART NO. CODE
7AO08 02

OASIS CODES: 501000