Econoline E150 1/2 Ton V8-5.4L CNG VIN M (1998)
PROM - Programmable Read Only Memory: Customer Interest
A/T - E4OD Harsh 1-2 Shift On Light Throttle
Article No.
98-7-10
04/13/98
TRANSMISSION - E4OD-HARSH 1-2 SHIFT AT LIGHT
THROTTLE - VEHICLES EQUIPPED WITH 5.4L OR
6.8L ENGINE - VEHICLES BUILT THROUGH 1/12/98
LIGHT TRUCK:
1997-98 ECONOLINE
This TSB article is being republished in its entirety to revise the Service Procedure.
CALIBRATION:
7-46K-R06, 7-46O-R06, 7-74C-R07, 7-74S-R07, 7-74T-R07, 7-74U-R06, 7-74V-R06, 7-96E-R06, 7-96T-R10, 7-96W-R06, 7-96X-R06, 8-46K-R05,
8-46Q-R05, 8-74C-R05, 8-74S-R05, 8-74T-R05, 8-74U-R05, 8-74V-R05, 8-96E-R05, 8-96T-R05, 8-96W-R05, 8-96X-R05
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE
CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE:
Some vehicles may experience a harsh 1-2 shift while driving under light throttle conditions. This may be caused by the Powertrain Control Module
(PCM) calibration.
ACTION:
Reprogram the PCM. The revised calibration should reduce engine torque during the 1-2 shift to help improve the 1-2 shift feel. Refer to the
Recalibration Cross Reference Chart for correct PCM calibration usage.
NOTE:
1997 ECONOLINE BUILT BEFORE 8/16/97 AND EQUIPPED WITH 5.4L ENGINE: ALSO INSTALL NEW INTERMEDIATE CLUTCH
FRICTION PLATES (F75Z-7B164-SA) AND ACCUMULATOR (F6TZ-7G422-B) AND REPROGRAM THE PCM.
Perform normal diagnostics as outlined in the 1998 Econoline Workshop Manual and service as required. If the vehicle build date is before 1/12/98, and
the concern is still present, reprogram the PCM.
NOTE:
PCM REPLACEMENT IS NOT AUTHORIZED BY THIS TSB. REFER TO THE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS
(PC/ED) SERVICE MANUAL FOR APPROPRIATE DIAGNOSTIC PROCEDURES IF PCM HARDWARE CONCERNS EXIST.
