spark plug blowout
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New User
Joined: Nov 2004
Posts: 14
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From: Arkansas
spark plug blowout
My father owns a 1999 F250 Supercab 4x4 5.4L . A sprark plug somehow blew out of the threads & knocked the coil-over off in the process. Upon inspecting the plug, it is an OEM & acording to the wear, has been there since the truck was new. The threads on the plug do not extend all the way to the shoulder of the plug & therefore, would not allow the plug to be seated against the head? Is this the way it was designed or is the plug defective? The threads in the aluminum head are ruined, would a helicoil work? Any help or suggestions would be appreciated.
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
Do a search for this problem.
Also chk out www.timesert.com its better than helicoils just for this problem
The newer design head in 01 (i think had full 8 threads in the head )has fixed this so they say .
Rich
Also chk out www.timesert.com its better than helicoils just for this problem
The newer design head in 01 (i think had full 8 threads in the head )has fixed this so they say .
Rich
Thread Starter
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New User
Joined: Nov 2004
Posts: 14
Likes: 0
From: Arkansas
Thanks for the quick reply & the www.timesert.com suggestion. Looks my father is not the only one having or have had this problem. They have a kit made just for the 5.4 Triton.
Happy driving!
Happy driving!
Guest
Joined: Nov 2004
Posts: 7,988
Likes: 55
From: north west new jersey
old v10's did also , the new heads use a different plug with more threads. for more info on this look in the v10 threads some one has some photos, good luck with repair . the v10 guys have some very good answers on this.
