Stalling in reverse

[elbigoton]

I have a 1997 7.3 2WD that stalls when I shift in reverse. It feels like its loosing power and once I release the brake and accelerate (in reverse) the stalling clears up. What gives?

[alberta 7.3]

It is an issue with line pressure in the transmission, causing the torque converter to remain locked, and forcing the engine to lug/stall.

[Twinjracing]

MY wifes Ex does this when it's low on fluid. but hers is an 01

[rolsmojave3]

TSB

Article No.
97-24-23

11/24/97
^ STALL - ENGINE STALL DURING TRANSMISSION
ENGAGEMENT - VEHICLES EQUIPPED WITH E4OD
TRANSMISSION

^ TRANSMISSION - E4OD - ENGINE STALL DURING
ENGAGEMENT

LIGHT TRUCK:
1996 BRONCO
1996-97 ECONOLINE, F-150-350 SERIES, F-53 MOTORHOME
1997 EXPEDITION
1998 NAVIGATOR

This TSB article is being republished in its entirety to revise the Service Procedure.
ISSUE:
Some vehicles may stall when the transmission is placed into gear. This may be caused by the transmission fluid filter becoming detached and/or loose.

SERVICE PROCEDURE

Follow all the normal diagnostic procedures outlined in the appropriate model/year Service Manual. Repair as required. If all normal diagnostics fail to correct the problem, refer to the following Steps.
1. Remove the transmission fluid pan to determine if the transmission fluid filter has dropped down or is not firmly seated in the pump bore.

2. If the filter has dropped down into the pan, discard the filter assembly and remove the filter seal from the pump bore.

CAUTION : BE CAREFUL NOT TO SCRATCH OR DAMAGE THE PUMP BORE WHEN REMOVING THE SEAL.

NOTE : DO NOT REMOVE THE ORIGINAL FLUID PAN MAGNET FROM THE FLUID PAN OTHER THAN TO CLEAN AND REINSTALL.

3. Install a new Filter and Seal Assembly (F6TZ-7A098-AB: 4X2, F6TZ-7A098-BB: 4X4). Refer to Figure 1.