Spark plugs
#1
Spark plugs
I have a 2008 Ford F150 with 48,000 miles and I was wondering if it would be better to go ahead and change my spark plugs now, or just wait until 100,000 miles? It has a 5.4 and from the stories I've heard I don't know what the best solution would be.
#2
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Join Date: Nov 2010
Location: London, UK
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I have same dilemma. I got 2008 5.4L with almost 40k miles. Last weekend I decided to change plugs when I hit 40k. Dealer is asking $395 plus $95 for every one that breaks. Hmmm, that is way too much so I'll be getting lisle tool and changing them next week. I will stick to MC plugs, since everyone on this forum recommends!!
Just change it. BTW good luck!!!
Just change it. BTW good luck!!!
#3
Run carbon cleaner in your gas for about 50 miles and at the same time spray wd40 on top of plugs when you do remove them use a long handle strong arm and work the plug back and forth not to much distance and spray more wd40 while doing this,good luck.
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#10
Senior Member
Champion makes a one piece but I have heard the don't last and are very problematic. The motorcraft is still The two or three piece plug if installed correctly I haven't heard of any problems