Fulltext TSBs

Technical Service Bulletins

TSB
03-21-3
  • DRIVEABILITY – REDUCED POWER – NO START – 7.3L D.I. TURBO – IDM MODULE – NO DIAGNOSTIC TROUBLE CODES
Publication Date: October 6, 2003

FORD:
1994-1997 F SUPER DUTY, F-250, F-350
1997 ECONOLINE

Article 95-6-13 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.

ISSUE:

A “no-start” or “reduced power” condition may occur intermittently on some vehicles. This may be caused by a short in the injector circuits or the IDM module.

ACTION:

Follow the diagnostics listed in the Diagnostic Guide and refer to the following Service Procedure.

SERVICE PROCEDURE

  1. If, after completion of all the steps in the Power Stroke 7.3L (DI Turbo) Diesel Diagnostic Guide, you are unable to pinpoint the cause of the concern, proceed with the following steps.
  2. Disconnect the IDM Module connector and using a DVOM, measure the resistance between the injector circuits to ground. If it is less than 5 ohms resistance, repair the short in the circuit and retest.
  3. If the concern still exists, replace the IDM module.

PART NUMBERPART NAME
F7TZ-12B599-ACIDM Module

OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

95-6-13

WARRANTY STATUS:

Information Only


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