Lethaldosage423

I've been told this by several ford techs and there are videos all over YouTube.
Obviously I don't reccomend this but it's a last resort

86HOGT

Even though I've seen others recommend and have had multiple success stories with the impact. I wouldn't recommend it.

Goldenpony

If it was a cast iron head, maybe. Aluminum? Would never use an impact.

m5miler

thanks guys for all the help. i'm still deciding which plugs to buy, haven't had much time to look with work and all.

m5miler

i'm using all the advice you've given me haha, the last thing i want to do is screw something up and really have it be a pain in my ***

teetertotter

Replaced mine at 110K miles w the same factory Autolites, but local garage did for $80.00+tax. No muss and no fuss. Said not to bother replacing the individual coils. Got almost 20K on replacement plugs. I guess if doing myself w/o the right tools for tight plugs, would probably use Kroil and let sit for a few hours.

Good luck in getting your plugs replaced.

jz

I used Champion 7989 on mine. No problems. I did remove my original plugs when I was a littler under 15,000mi and even then I saw carbon build up and the plugs were tight.

Goldenpony

I've used Champion plugs the last two changes. No problems at all. Car runs great. Easier to sleep knowing when I do take 'em out they'll come out in 1 piece.

m5miler

I've Been looking at the champion plugs and have seen good reviews. I was also looking at Ngk iridiums as well and found a set of 8 on American muscle. It says it's for mid 08-10 models. Will these not fit my car? I thought all 05-09 could use the same spark plugs

Goldenpony

No, they will not fit your car. Ford had a head design change (thank God) in mid 2008. After that our engines used a standard type plug unlike the crap 2 piece plugs starting in '05.