Spark Plug spitting TSB from Ford
TSB 07-15-2
5.4L 2V AND 6.8L 2V MODULAR ENGINE SPARK PLUG THREAD OUT OF WARRANTY REPAIR PROCEDURE FOR ALUMINUM HEADS
FORD: 1997-2000 F-250 Light Duty
1997-2003 F-150
1997-2004 Expedition
1997-2007 E-Series
1998-2004 F-53 Motorhome Chassis, F-Super Duty
2001-2005 Excursion
LINCOLN: 1998-1999 Navigator
ISSUE:
Various 1997-2007 vehicles with a 5.4L 2V, or 6.8L 2V engine with stripped or missing spark plug port threads in modular engine aluminum heads. Ford Motor Company now authorizes LOCK-N-STITCH aluminum inserts and tool kit.
ACTION:
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), 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 FOR WARRANTY REPAIRS AND IS THE ONLY FORD AUTHORIZED PROCEDURE FOR SPARK PLUG THREAD REPAIRS.
WARRANTY STATUS:
Information Only - Not Warrantable
I just figured someone might be interested in the prescribed way Ford is instructing their techs to fix the heads when a plug is launched.
Here is the Lock-N-Stich website: Spark Plug Thread Repair Inserts
Stewart
I double checked the TSB, and it does indeed show the 2001 - 2005 Excursion.
FWIW, I have a buddy who works at the Lock-N-Stich company and he posted on another board that Ford should be including the 4.6L engines soon.
Stewart








