Fulltext TSBs

Technical Service Bulletins

TSB
03-21-35
  • IDLE – IDLE SPEED TOO LOW WHEN COLD – VEHICLES WITHOUT CRUISE CONTROL AND WITH 7.3L DIESEL ENGINE
  • ENGINE – 7.3L DIESEL – IDLE SPEED TOO LOW WHEN COLD – VEHICLES WITHOUT CRUISE CONTROL
Publication Date: October 7, 2003

FORD:
1999 SUPER DUTY F SERIES, F-650

Article 99-18-2 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.

ISSUE:

On some vehicles not equipped with cruise control, the engine may idle at the normal engine RPM but lacks the cold engine idle kicker function to raise the engine RPM similar to those vehicles equipped with cruise control. This may be due to the Powertrain Control Module (PCM) strategy.

ACTION:

Reprogram the PCM. Refer to the following PCM Reprogramming Information Table for calibration details.


PCM REPROGRAMMING INFORMATION
ApplicationNew Tear TagNGS/WDS Qualifier
F-250/350 – Federal Warm/ManualQEKxWDS B26.2 Release or Later
F-450/550/650 – Federal Cold/ManualZHLxWDS B26.2 Release or Later
F-450/550/650 – 50S Warm/ManualVRPxWDS B26.2 Release or Later
F-250/350 – 50S Cold/ManualBAWxWDS B26.2 Release or Later
F-250/350 – California Warm/ManualGLIxWDS B26.2 Release or Later
F-250/350 – California Cold/ManualSBJxWDS B26.2 Release or Later
F-250/350 – California Warm/AutomaticXWFxWDS B26.2 Release or Later
F-250/350 – California Cold/AutomaticHQNxWDS B26.2 Release or Later
F-250/350 – Federal Warm/AutomaticYEVxWDS B26.2 Release or Later
F-450/550/650 – Federal Cold/AutomaticMRTxWDS B26.2 Release or Later
F-450/550/650 – 50S Warm/AutomaticRXMxWDS B26.2 Release or Later
F-450/550/650 – 50S Cold/AutomaticLVSxWDS B26.2 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:
Reprogrammed Powertrain Control Module (PCM) per TSB 03-21-35.
 
 
 
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:

99-18-2

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