Fulltext TSBs

Technical Service Bulletins

TSB
03-9-11
  • DRIVEABILITY – ROUGH IDLE AND/OR HESITATION ON ACCELERATION – VEHICLES EQUIPPED WITH 5.4L OR 6.8L ENGINE ONLY
Publication Date: May 5, 2003

FORD:
2000-2003 E-350, E-450, EXCURSION, SUPER DUTY F SERIES

ISSUE:

Some F250-F550 Super Duty and Excursion vehicles equipped with a 5.4L or 6.8L engine, and some E350/450 vehicles equipped with a 6.8L engine may exhibit a rough idle and/or hesitation when accelerating. This may occur intermittently within the first 2-3 minutes after start when engine is not warmed up (ie., conditions other than hot restart). The condition is more likely to occur at ambient temperatures of approximately 60° F (16° C) and higher, and may be aggravated by an unmetered air leak or exhaust leak.

ACTION:

This article must be followed as specified to effectively correct symptoms. Read the article completely before starting service. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

F250-F550 Super Duty and Excursion

Service any unmetered air leak, exhaust leak, wiring or other related concern. Replace both front HO2S sensors with the part number listed in this article.

E350/E450

Refer to the E-Series Only PCM Calibration Chart. Do not perform this TSB if the vehicle’s calibration is not listed in the chart. Service any unmetered air leak, exhaust leak, wiring or other related concern. Replace both front HO2S sensors with the part number listed in this article.

  1. Refer to the following PCM Calibration Chart FOR E-SERIES ONLY to verify that vehicle is addressed by this TSB. Do not perform this TSB on an E-Series vehicle if the calibration is not listed in the E-Series Only PCM Calibration Chart.

    E-SERIES ONLY PCM CALIBRATION CHART
    ApplicationCalibrationPart Number (-12A650-)Tear Tag
    2000 E450 6.8L 50S0E418N0511YC2F-AAEMXK4
    2000 E350 6.8L Fed0E418P0A11YC2F-ABECIS4
        
    2001 E450 6.8L 50S1E418N05101C2F-VCNJE2
    2001 E350 6.8L Fed1E418P0A101C2F-XCSZZ2
        
    2002 E450 6.8L 50S2E418N05112C2A-ABEBWQ4
    2002 E350 6.8L Fed2E418P0A112C2A-ACECGL4
        
    2003 E450 6.8L 50S3E418N05053C2A-JBYMH1
    2003 E350 6.8L Fed3E418P0A053C2A-KBVVU1

  2. Perform thorough diagnostics in accordance with the applicable PC/ED Workshop Manual, and service any issues.
  3. Replace both front HO2S sensors, with Part Number 3S4Z-9F472-BA.

    NOTE:THE NEW HO2S CONNECTOR (BLACK) REQUIRES THAT THE CLOCKING TAB LOCATED AT THE 4:00 POSITION BE REMOVED. REFER TO FIGURE 1 FOR REQUIRED ELECTRICAL CONNECTOR MODIFICATION FOR MATING WITH VEHICLE WIRING HARNESS. FOLLOWING THE MODIFICATION, VERIFY THAT CONNECTOR MATES FULLY AND LOCKING FEATURE IS ENGAGED. THE ELECTRICAL CONNECTOR HARD-SHELL COLOR OF THE NEW HO2S SENSORS WILL BE BLACK INSTEAD OF GREEN.

    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:
    Updated with 3S4Z-9F472-BA Front HO2S sensors per TSB 03-9-11
     
     
     
    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.




PART NUMBERPART NAME
3S4Z-9F472-BAOxygen Sensor (HO2S)

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Information Only

OASIS CODES:

608000, 608400, 608500, 609000, 609400, 609500, 611000, 611500, 698298




Figure 1 – Article 03-9-11


NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle.

Copyright © 2003 Ford Motor Company