Anyway the stock plugs lasted 200k
#1
Senior Member
Thread Starter
Anyway the stock plugs lasted 200k
I have an 04 f150 which has no documented proof spark plugs were ever changed. (5.4) The truck runs fine, I just dont want to screw it up by attempting to change them. The truck has 203k on it , anyway the truck would be running fine with stock plugs installed? Any easy way to tell they are stock beyond removing one?
#2
Mark
iTrader: (1)
No way... Can't be orginal and you gotta pull one to see..
#5
Mark
iTrader: (1)
That's nuts..
#7
Senior Member
Thread Starter
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#8
I got a 140k on my original plugs but it's 4.6. I have had new spark plugs, boots, and springs since 100k but the gas mileage hasn't dropped any so I keep putting off changing them.