5.4 plugs ?
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Senior User
Joined: May 2010
Posts: 301
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From: Duluth,MN
5.4 plugs ?
Hey guys I have a new to me truck as some of you know and I decided to pull the a plug today to see what kind of shape they are in. The trucks got 102K on it. The plugs that were in it are Autolite Revolution ht (HT1). Are these good plugs? The truck runs great and I have no problems I just want to make sure they are right because of all the horror stories. How can I tell how old they are? They electrode on the bottom looks really crisp. And they are gapped about .045.( I don't have a tool that will fit in the plug H). Any help or info would be great! Thanks
Posting Guru
Joined: Aug 2008
Posts: 2,313
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From: Sunny, Snowy, CO
They'll work, but Champion makes a new 1-piece. Better throw some anti-seize on that one before putting it back in or you WILL regret it. That's one thing about Ford's...each truck has some sort of systemic issue...
