A Triton engine I bet. Ford had a lot of trouble with that, they only used 4 threads on the plug, and on an aluminum head to boot. I don't know what they were thinking
You need to put a thread kit in the head on the affected cylinder. FORD had issues with the design of this cylinder head and the sparkplug threads.
Its also burning up the wire skipping real bad and no power
1998 Ford F-150 XL Extended Cab SB
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Maintenance & Repair
When changing spark plugs on my 2001 Ford F-150 triton 5.4L engine I noticed oil collected in the spark plug hole before I pulled the old plugs. What can cause this and will it affect engine running...
2001 Ford F-150 Lariat Crew Cab SB
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Maintenance & Repair
My 1997 ford f150 4+4 started misfireing and said it was the number 5 plug so i pulled it and the socket was driping oil with oil when i pulled it out
1997 Ford F-150 XL 4WD Extended Cab LB
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Maintenance & Repair
No. 2 plug came out while running
2001 Ford F-150
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Maintenance & Repair
need to know the spark plug sequence
2006 Ford F-150 XLT Styleside
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Maintenance & Repair
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