Fulltext TSBs

Technical Service Bulletins

TSB
99-18-7
  • NOISE – “SQUAWKING” NOISE HEARD WHILE IN REVERSE BACKING UP – VEHICLES EQUIPPED WITH 5.4L OR 6.8L ENGINE
  • TRANSMISSION – 4R100 – “SQUAWKING” NOISE HEARD WHILE IN REVERSE BACKING UP – VEHICLES EQUIPPED WITH 5.4L OR 6.8L ENGINE
Publication Date: AUGUST 26, 1999

FORD:
1999 F-250 HD, SUPER DUTY F SERIES

This TSB article is being republished in its entirety to correctly list the Powertrain Control Module (PCM) reprogramming information.

ISSUE:

Some vehicles may exhibit a “squawking” noise while in Reverse backing up a slight grade and/or while applying the brakes. This may be caused by marginal line pressure in Reverse during this near torque converter stall condition.

ACTION:

Reprogram the Powertrain Control Module (PCM). The revised calibration has increased the line pressure to reduce the possibility of noise. Refer to the following PCM Reprogramming Information Table for calibration details.


PCM REPROGRAMMING INFORMATION
ApplicationTear Tag NumberNGS/SBDS Qualifier
5.4L – 49SMERx9VZA-AF CALIBRATION
5.4L – CALIFORNIANUYx9VZA-BJ CALIBRATION
6.8L – 49SYHHx9WAA-AA CALIBRATION
6.8L – 49SAEOx9WAA-AC CALIBRATION
6.8L – 49SBIHx9WAA-AF CALIBRATION
6.8L – 49SDOZx9WAA-AH CALIBRATION
6.8L – 49SMCMx9WAA-AI CALIBRATION
6.8L – CALIFORNIAEAPx9WAA-BC CALIBRATION
6.8L – CALIFORNIAFOTx9WAA-BD CALIBRATION
6.8L – CALIFORNIAJURx9WAA-BL CALIBRATION
6.8L – CALIFORNIAJTYx9WAA-BV CALIBRATION
6.8L – CALIFORNIAMFGx9WAA-BY CALIBRATION
6.8L – CALIFORNIANRRx9WAA-BZ CALIBRATION

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 99-18-7.
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:

98-24-4

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
991807AReprogram Powertrain Control Module (PCM)0.6 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
RECAL42

OASIS CODES:

503000, 504000, 597997, 702000


Copyright 1999 Ford Motor Company