PCM - Low Power In Reverse Gear

Article No.
02-2-1

02/04/02

^ DRIVEABILITY - LOW POWER CONDITION WHILE
IN REVERSE GEAR - VEHICLES EQUIPPED WITH
6.8L 2V ENGINE, 4R100 TRANSMISSION AND PTO
OPTION ONLY

^ TRANSMISSION - 4R100 - LOW POWER CONDITION
WHILE IN REVERSE GEAR - VEHICLES EQUIPPED
WITH 6.8L 2V ENGINE, 4R100 TRANSMISSION AND
PTO OPTION ONLY

FORD:
2000-2001 SUPER DUTY F SERIES

ISSUE
Some vehicles equipped with the 6.8L-2V engine, 4R100 transmission and PTO option may exhibit a low power condition while in reverse gear. This may be caused by the calibration of the Powertrain Control Module (PCM).

ACTION
Verify the condition. If the condition exists, reprogram the PCM with an updated calibration. If the condition persists after the reprogram, continue with normal diagnostics to pinpoint the condition. Refer to the following Service Procedure for details.

SERVICE PROCEDURE





Verify that a low power or lack of power condition exists while in reverse. Prior to performing any service procedures, verify tear tag information. Refer to the PCM Calibration Information Chart in this article. If the calibration is not at the latest level, follow the procedures found in the Powertrain Control/Emissions Diagnosis (PC/ED) Workshop Manual to reprogram the PCM to latest calibration level.

Verify repair. If the condition is not corrected, continue with normal diagnostics and repair per the Workshop Manual.





Obtain an Authorized Modifications Decal (STAT 5941-2 - obtainable through the PDC) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

020201A Reprogram Powertrain 0.9 Hr.
Control Module (Includes
Time To Verify Complaint
And Repair)

DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 42

OASIS CODES: 504000, 614000, 614500