4.6L 2V, 5.4L 2V, Or 6.8L 2V - Spark Plug Thread Repair Procedure - Not Covered Under New Vehicle Limited Warranty (07-21-2)

Publication date: 2007-10-29
Reference number: 07-21-2
Supersedes refnos: 07-15-2

4.6L 2V, 5.4L 2V, OR 6.8L 2V - SPARK PLUG THREAD REPAIR PROCEDURE - NOT COVERED UNDER NEW VEHICLE LIMITED WARRANTY

TECHNICAL SERVICE BULLETIN

Reference Number(s): 07-21-2, Date of Issue: October 29, 2007

FORD:	1997 Thunderbird; 1997-2004 Mustang; 1997-2008 Crown Victoria; 1997-1999 F-250 Light Duty; 1997-2004 Expedition; 1997-2008 E-Series, F-150; 1998-2004 F-53 Motorhome Chassis, F-Super Duty; 2001-2005 Excursion; 2002-2006 Explorer
LINCOLN:	1997-2007 Town Car; 1998-1999 Navigator
MERCURY: :	1997 Cougar; 1997-2008 Grand Marquis; 2002-2006 Mountaineer

Superceded Bulletin(s): 07-15-2, Date of Issue: August 6, 2007

NOTE: This article supersedes TSB 07-15-2 to update the vehicle model years.

ISSUE

Some 1997-2008 vehicles equipped with a 4.6L 2V, 5.4L 2V, or 6.8L 2V engine and aluminum cylinder heads may experience a spark plug port with stripped or missing threads.

ACTION

Follow the Service Procedure steps to correct the condition for non warrantable repairs.

SERVICE PROCEDURE

Ford Motor Company now authorizes LOCK-N-STITCH aluminum insert and tool kit as a proper repair procedure.

Follow the procedure included in the tool kit for using the tools and inserts. Tool kits and inserts can be ordered from Rotunda by calling 1-800-Rotunda (768-8632). Choose option two (2), part number 302-00001.

NOTE: FORD MOTOR COMPANY HAS DETERMINED THAT REPAIRS MADE WITH THESE ALUMINUM INSERTS AND LOCK-N-STITCH TOOLS DO NOT AFFECT THE HEAT TRANSFER FUNCTION BETWEEN THE SPARK PLUG AND THE CYLINDER HEAD.

NOTE: THIS PROCEDURE IS NOT AUTHORIZED AS A FORD WARRANTY REPAIR. FOR VEHICLES WITHIN WARRANTY, REPLACEMENT OF THE CYLINDER HEAD IS RECOMMENDED.

NOTE: THIS IS THE ONLY FORD AUTHORIZED PROCEDURE FOR SPARK PLUG THREAD REPAIRS.

NOTE: THIS PROCEDURE IS AUTHORIZED FOR ESP REPAIRS AND RETAIL REPAIRS.

WARRANTY INFORMATION

WARRANTY STATUS: Information Only - Not Warrantable.