Changed Plugs today........
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Mountain Pass
Joined: Dec 2004
Posts: 148
Likes: 0
From: missouri
Changed Plugs today........
Well finally broke down and changed the spark plugs and wires in my 2001 Edge 4.0 and OMG even taking the passenger front tire off and going in from underneath these plugs had to be the worst set up i have had to change in my life.....Even worse than my v6 Fiero from years ago!!!!.Looking at the plugs now i can see why my truck is getting such semi crappy mileage....Why does Ford recommend such a long time before changing plugs my truck just rolled 80,000 miles on it and i can imagine if i waited till the 100,000 mile mark what they would look like. Got a set of motorcraft iridium plugs,Ford and Oreilys say the platinums have been superceeded so this is what they recommended and a new set of motorcraft wires and a fuel filter,and a fresh tank of 91 octane shell gas and 3.45 a gallon and reset my superchips tuner at its 91 octane setting and after 4 hours work WOW!!!!! The little truck runs like it has zero miles on it and with all the other mods i have done to it i did a little driveing around and think this might help the mpg situation alot if i can keep my foot out of it.
have a good week end all
regards
Steve a
have a good week end all
regards
Steve a
New User
Joined: Feb 2007
Posts: 4
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I need to change the plugs on my '02 Ranger 4.0 I have changed the drivers side easy, but haven't decided how to change the passenger side. Thought the inner fender needed to come out and maybe the tire. Any suggestions. I'm putting Bosch plugs in.
Steve
'02 Ranger
'02 Explorer
Steve
'02 Ranger
'02 Explorer
Elder User
Joined: Jul 2006
Posts: 601
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From: Denver
Originally Posted by jimdandy
How much of a power increase do you get from running 91 octane and a tuner??? jd
I also have heard nothing but horror stories about Bosch plugs in the 4.0, so I do not recommend them. Motorcraft, Autolite, and NGK have all worked well for me.
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Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
in any ford bosch platinums of any kind are the worst investment and a rip off to boot.
they were crap in my 87 vette also.
they were crap in my 87 vette also.
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Joined: Jul 2006
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From: Denver
The sohc engine has been spec'd at anywhere from .054 to .065 depending on year, etc. When I changed mine, some were as high as .077 and I saw no change in performance or mileage w/ the new plugs, so the electrical system really does have the ability to fire those 'huge' gaps.