Fulltext TSBs

Technical Service Bulletins

TSB
99-14-10
  • INDUCTION BACKFIRE – VEHICLES IN MEXICO ONLY WITH 4.2L ENGINE
  • ENGINE – 4.2L – INDUCTION BACKFIRE – VEHICLES IN MEXICO ONLY
Publication Date: JULY 6, 1999

FORD:
1998-1999 F-150

ISSUE:

Induction backfire on accelerations and decelerations during all ambient temperatures may occur on some vehicles. This may be caused by carbon buildup on the intake valves due to high sulfur content in the gasoline and the Powertrain Control Module (PCM) calibration.

ACTION:

Reprogram the PCM. If the backfire concern has not been resolved, perform normal diagnostics. Be sure to perform intake valve deposit inspection procedure (carbon blasting with walnut shells) or replace the intake valves with new Intake Valves (F65Z-6507-AA).

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 99-14-10
 
 
 
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.




PART NUMBERPART NAME
F65Z-6507-AAIntake Valve (6 Per Vehicle)

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of 2 Years/40,000 Km Warranty Coverage For Mexico

OPERATIONDESCRIPTIONTIME
991410AReprogram Powertrain Control Module (PCM)0.4 Hr.
991410BExtra Time To Inspect Intake Valves0.4 Hr.
991410CExtra Time To Clean Intake Valves (DO NOT Use With Operation D)2.9 Hrs.
991410DExtra Time To Replace Intake Valves (DO NOT Use With Operation C)8.9 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
650749

OASIS CODES:

613400, 613500, 613700