Hello all, I am nearing 70k miles and per the maintanence sheets on JTIS 70k is the interval for changing the spark plugs. Granted I am not looking forward to the job and will tackle it myself I was wanting to know what was reccomended for spark plugs.

I looked on sparkplugs.com: http://www.sparkplugs.com/results_ap...p;AAIA=1381193

and the Autolite and Champion pop up for OEM replacements.

Do the OE sparkplugs need to be changed out after 70k and the next plugs I put in there I hope to have be a longer life plug...so I am leaning towards Platinums or Iridiums. I like the specs on Champion's Gold Plugs as well but I am not sure of their longevity.

Any info and insight would be most appreciated!

 

Also i am not sure what type of gasket is used on the intake manifold but you are probably going to want to have one of those handy when changing the plugs as it will probably need replacing.

 

Hey thanks guys, I was planning on using the procedure off the jagmotorproject blog site that details how to remove the intake and go about changing the spark plugs.
http://jagmotorproject.blogspot.com/...ing-plugs.html

Unless any of you have seen a better procedure?

Are the OE plugs just a standard copper core sparl plug (meaning no fine-wire electrodes or precious metals used i.e. iridium, platinum, gold-palladium)?

 

Hey Chas...if you decide to undertake this project..please take pictures along the way (start to finish)

thanks

 

My old car was a 92 Infiiniti Q45 and that had a V8 in it and the plugs on that car were a biotch. It was a good 4 hour job easy.

 

Dennis, I am looking to do the plugs on my car as it is sitting at 87K miles and I don't know if the plugs have been messed with or not. I just got the car 3K miles ago. So, I figured I would pull the plugs and stick in some double platinum plugs. Sure they are a few dollars more, but atleast in my Expedition, guys have been getting well over 100K miles from a set of plugs. Ford doesn't even recommend looking at the plugs in their trucks until 100K miles. I pulled mine both times at 60K mile intervals and they looked almost new. What sort of pics are you looking for? If you need someone to do a "how-to", I can do that. I've done a few for my truck club.

As a side topic, would running something like a Split Fire or the Bosch +4's yield anything? I know in my truck, they netted nothing except for a lighter wallet. But, I figure if I am putting in new plugs and can gain a little something, then might as well go for it.

Chris "Thermo" Coleman and Nukie, the radioactive 97 X

 

I'm pretty sure I can do my plugs myself...I think that "How to blog" posted above will be everything I'll need..I was just hoping for the sake of future questions about changing plugs, that a picture tutorial would be nice to have here..

As far as the kind of plug?..I would go with whatever the dealer puts in..I would however try to find them at a lower price than what the dealer charges, like Bo mentioned....If I was in question about their condition..try pulling one of the front three and see how they look.

 

I, too have been meaning to tackle this project.

My money is that these plugs are double plats. Even further, it wouldn't surprise me if they are the same as the 2.5L/3L Duratec family (Motorcraft: AGSF32FM, Autolite: APP764; all the same). Been so busy around these parts as of late, haven't had a chance to open her up. [:'(]

GL for those tackling it. Might want to also consider cleaning out the intake manifolds. At least do the UIM.

 

All the info is here on what plugs and how to do the job is here, good luck:-
http://jagmotorproject.blogspot.com/...ing-plugs.html

 

Any good places to buy the gaskets/plugs? Can anyone verify that the intake gasket is reusable? Any experience on that?