Fulltext TSBs

Technical Service Bulletins

TSB
06-3-3
  • 5.4L 3V WITH P030X AND/OR P0316 ACCOMPANIED BY SPARK KNOCK
Publication Date: January 25, 2006

FORD:
2004-2005 F-150
2005 Expedition, F-250, F-350
LINCOLN:
2005 Navigator

This article supersedes TSB 05-25-5 to update the model years and Service Procedure.

ISSUE:

Some 2004-2005 F-150 and 2005 F-250, F-350, Expedition and Navigator vehicles equipped with a 5.4L 3V engine, may exhibit the malfunction indicator lamp (MIL) on with misfire diagnostic trouble codes (DTCs) P0300 through P0308 and/or P0316, and a spark knock.

ACTION:

It may be necessary to replace the long or short block if damaged, and/or install latest level spark plugs. Refer to the following Service Procedure.

SERVICE PROCEDURE

  1. Isolate the engine bank causing the misfire/engine knock using diagnostic trouble codes and/or stethoscope.
  2. De-power each cylinder individually on affected bank(s), one by one.
    1. If noise disappears when any cylinder(s) are de-powered, proceed to Step 3 for those cylinders.
    2. If noise does not disappear, use power balance test to isolate affected cylinders and proceed to Step 3.
  3. Perform cylinder leak down/compression test and/or use a borescope to check isolated cylinders for damage (scuffed cylinder bore walls).
    1. If engine damage is confirmed, replace the long or short block assembly under the provisions of the latest edition of the Powertrain Reference Guide. Be sure the latest level spark plugs are installed.

      NOTE:THE LATEST LEVEL PLUG WILL BE MARKED WITH (PZT 1F) ON THE PORCELAIN INSULATOR.

    2. If no engine damage is found, be sure the latest level spark plugs are installed.
  4. If the misfire/knock condition is still present further diagnostics may be required to determine other sources of misfire, such as fuel injection monitoring or coil integrity checks with WDS diagnostic equipment.

PART NUMBERPART NAME
PZT-1F-F4Spark Plug

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage

DEALER CODING

BASIC PART NO.CONDITION CODE
1240542

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. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company’s on-line technical resources.

Copyright 2006 Ford Motor Company