#4 spark plug
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New User
Joined: Dec 2003
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From: texas
#4 spark plug
autozone informed me that my 1999 f150 was missing out on the #4 cylinder. Ford wants 250.00 for plug and COP. Question; is it that difficult to replace the #4 plug?
Any assistance would be appreciated...
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Joined: Dec 2001
Posts: 22,436
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From: Louisville,Ky.
Hi and welcome to FTE. 
I would bet that it is the COP. #4 seems to be a common problem on the V8's.
If you look at the top of this forum, read the FAQ thread, I believe that it walks you thru the plug change.
Jimmy
I would bet that it is the COP. #4 seems to be a common problem on the V8's.
If you look at the top of this forum, read the FAQ thread, I believe that it walks you thru the plug change.
Jimmy
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Joined: Nov 2003
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The spark plug is around $4.00 and the COP is $81.00 (at the Ford dealer). Buy the spark plug socket wrench that's made for this application. It's like a deep socket that's about four inches long with a rubber grip inside. You can buy the socket at the local parts house.
Number 4 is on the passenger's side back against the firewall so there'll be some cussing and fumbling, but you'll get it out OK. Blow the debris out of the spark plug well before removing the old plug. Don't overtighten the new plug.
Number 4 is on the passenger's side back against the firewall so there'll be some cussing and fumbling, but you'll get it out OK. Blow the debris out of the spark plug well before removing the old plug. Don't overtighten the new plug.
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New User
Joined: Dec 2003
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From: texas
Guess what, my wife took the truck to a ford dealership....$380.00. They said the Cop and the plug went out...I told her to get the used parts back........and I didn't even get a christmas card from ford.
Thanks for all of the quick responses, it was really appreciated though.
Merry Christmas
GF150
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Joined: Dec 2003
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From: Cincinnati
$300 in labor? what do you Ford techies think about that? is it worth that or should I plan on doing it myself? I realize that some jobs are worth having someone else do for $300, like kingpins in the old trucks, but changing a spark plug for $300??????? it must be one heck-of-a job!!!!!
Hotshot
Joined: Aug 2002
Posts: 12,679
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From: BC, Canada
I'd be very interested in seeing what exactly the repair order said they did. It would be great if I could get away with charging $300 to replace a plug and COP but I sure cant see that happening.
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Joined: Dec 2003
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From: texas
It started out at 400.00 (which also included the analysis)
100.00.
After seeing all of the how-to's here, I could have done it myself a bought a new set of crafttsman
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