Fulltext TSBs

Technical Service Bulletins

TSB
99-12-4
  • NOISE – “CLUNKING” HEARD DURING 4-3 COASTDOWN WHILE DECELERATING FROM 48-32 KM/H (30-20 MPH) – VEHICLES WITH 5.4L ENGINE AND 4R70W TRANSMISSION
  • TRANSMISSION – 4R70W – 4-3 COASTDOWN “CLUNK” WHILE DECELERATING FROM 48-32 KM/H (30-20 MPH) – VEHICLES WITH 5.4L ENGINE
Publication Date: JUNE 1, 1999

LIGHT TRUCK:
1999 F-150

CALIBRATION:

9VZA-AC CALIBRATION, 9VZA-AD CALIBRATION

WARNING:THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.

ISSUE:

A 4-3 coastdown “clunk” when decelerating from 48-32 km/h (30-20 mph) may occur on some vehicles. This may be caused by the Powertrain Control Module (PCM) calibration.

ACTION:

Follow normal diagnostic procedures per the 1999 F-150 Workshop Manual and reprogram the PCM.

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 99-12-4
 
 
 
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

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
991204AReprogram Powertrain Control Module (PCM)0.4 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
RECAL42

OASIS CODES:

502000, 504000, 597997, 702200


Copyright © 1999 Ford Motor Company