Fulltext TSBs

Technical Service Bulletins

TSB
03-21-13
  • NOISE – “KNOCKING” SOUND – VEHICLES WITH 7.3L DIT ENGINE – CALIFORNIA EMISSION VEHICLES ONLY
Publication Date: October 6, 2003

FORD:
1996 E-350, F-250, F-350

Article 96-16-7 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.

ISSUE:

Engine noise similar to a rod knock may be heard on some vehicles. This noise usually occurs at idle, but can occur at other speeds and is due to the combustion characteristics of the new injectors for California emission vehicles with a 7.3L DIT engine.

ACTION:

Use the following Service Procedure to determine if reprogramming or replacing the Powertrain Control Module (PCM) with a revised calibration/PCM is required.

SERVICE PROCEDURE

WARNING:THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE CALIBRATIONS.

NOTE:BEFORE SERVICING VEHICLE, CHECK FOR AN AUTHORIZED MODIFICATION DECAL, FPS 8262, ON THE FAN SHROUD INDICATING REPROGRAMMING OR REPLACEMENT PERFORMED.

  1. Perform the diagnostic procedures in the 1996 Powertrain Control/Emissions Diagnosis (PC/ED) Manual for this symptom. Service as required.
  2. Reprogram the PCM with the appropriate calibration per the following PCM Calibration Information Chart using the latest calibration update.

    PCM CALIBRATION INFORMATION
    ApplicationOld Part Number (-12A650-)New Part Number (-12A650-)Old CalibrationNew CalibrationNGS/WDS Qualifier
    F-250, F-350 – Manual TransF6TF-ATEF6TZ-ATH6-89N-R026-89N-R11WDS B26.4 Release or later
    F-250, F-350, E-350 – Auto TransF6TF-AXEF6TZ-AXH6-90P-R026-90P-R11WDS B26.4 Release or later

    Obtain an Authorized Modifications Decal (FPS 8262 – obtainable through DOES II, 25/pkg) 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.


    AUTHORIZED MODIFICATIONS

    THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:
    Replaced or Reprogrammed Powertrain Control Module (PCM) per TSB 03-21-13.
     
     
     
    THESE MODIFICATIONS HAVE BEEN APPROVED, AS APPROPRIATE, BY EPA AND CARB.
    DEALER NUMBER:——————————————DATE:

    CHANGE AUTHORITY:

    FPS 8262 9/78 FORD MOTOR COMPANY PRINTED IN U.S.A.



OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

96-16-7

WARRANTY STATUS:

Information Only