Spark plug question
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Senior User
Joined: Aug 2002
Posts: 301
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Spark plug question
I am tired of waiting on the dealer to fix this miss. I am assuming from many years of experience & hearing the problems others have had this is most likey the problem with the miss, poor economy as of late & pathetic performance. I have an '05 F-150 with a 5.4 Triton. What are you guys using?
New User
Joined: May 2004
Posts: 14
Likes: 0
From: Woodbine, IA
I have a 5.4 Expedition, currently in the shop waiting for a "re-manufactured" engine to be put in under warranty. While in the shop to see the bent rod resulting from a bad injector flooding the #3 cylinder, the Ford service rep and mechanic both told me that a new SB changes the plug. I'm not sure what the new plug is, but the mechanic showed me the scuffing on my cylinders that he said was the result of the old plugs. The new plugs look similiar to the old ones. I suggest a search of SBs to determine the correct plug PN. I hope this helps.
