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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 12-10-2010
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Changing Spark Plugs

Just turned 100K on my '04 4.0. Thought I would change the plugs for the first time. Five out the 6 look accessible, but how d you get to the back one on the passenger side? I'm not even sure I can get my hand down there to remove the plug wire. Also, do you all use anti-sieze on the threads? Thank you.
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Old 12-10-2010
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take off the wheel and you can access it through the gap guard. actually, it is easier to access the whole passenger side this way
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Old 12-10-2010
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Yes, always use anti-seize on all sparkplug threads.


GB :)
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Old 12-10-2010
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Thank you and will do both!
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Old 12-29-2010
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my 06 ranger has well over 100k on it should i be changing my plugs?
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Old 12-29-2010
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i would have never thought to take the tire off, i would have just bent twisted and all about chopped off my hand to get it out.
i always use anti seize and torque them. a little known fact is that torque grease really does make a difference, sometimes the reading on the gauge isn't what is really happening. so apply a little bit of torque grease to the threads in addition to anti seize.
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Old 12-29-2010
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Quote:
Originally Posted by StxDangerRanger View Post
i would have never thought to take the tire off, i would have just bent twisted and all about chopped off my hand to get it out.
i always use anti seize and torque them. a little known fact is that torque grease really does make a difference, sometimes the reading on the gauge isn't what is really happening. so apply a little bit of torque grease to the threads in addition to anti seize.

Good quality anti-seize will do the same thing. The grease isn't necessary at all.



GB :)
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Old 12-30-2010
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I need to buy a lift cuz at my old age chopping off my hand is about equally appealing to crawling around on the floor to get at those plugs.
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Old 12-30-2010
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i broke the back one on the passenger side it sucked to get it out. had to use a flat head and wiggle it out thread by thread. fords 5.4 3v the plugs are a 10mm and ALWAYS break those suck
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Old 12-30-2010
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Originally Posted by 04RangerDave View Post
i broke the back one on the passenger side it sucked to get it out. had to use a flat head and wiggle it out thread by thread. fords 5.4 3v the plugs are a 10mm and ALWAYS break those suck
yup. thats why I got rid of my 04 f150
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