Got my spark plugs changed....the results inside.
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Senior Member
Joined: Jul 2006
Posts: 1,052
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Well, I put my stock intake back on tonight and reprogrammed the truck back to stock. Now I'll see if it comes back on with the stock tune after driving it awhile. If it does I'll take it into the dealer and see if they'll cover it under warranty since my truck is still covered. If it doesn't come on then I'll know it's tune related.
Senior Member
Joined: Sep 2003
Posts: 599
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I had mine changed at 110,000 miles and honestly the plugs looked fine. My gas mileage is the exact same with the new plugs as with the old as well...
6/8 broke on mine. The good news is they do have a good process to remove the broken plugs. It just costs ya ...
6/8 broke on mine. The good news is they do have a good process to remove the broken plugs. It just costs ya ...
Senior Member
Joined: May 2006
Posts: 579
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From: Jacksonville, FL
Depends on the dealer. This is something you need to check with them about before you let them do the job. I checked with 4 different dealers, two of them said yes and the other two said any extra work was going to be at my expense. When I called Ford's 800 number to ask about this, they said it was up to the dealer. Then the person I spoke with added that the warranty would only cover a broken plug if it was being replaced due to a warranty claim, like a misfire and the plug broke when they were replacing it. They would not cover it under warranty if I was just having a plug change.
Thanks! That's what I needed to know!
Senior Member
Joined: Mar 2007
Posts: 2,275
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From: League City, Texas
AS far as fuel quality, and carbon buildup is concerned, I didn't buy my truck new, and big name brand gas stations are a ways out of my way. I use Shell and Chevron gas whenever I can get it, and I use SeaFoam every 1K miles or so. Should that be enough to keep the plugs clean?