cruzomatic

Brad, on a hot engine, yes, use in impact, work quickly so the engine doesn't cool down on you. It's not too tough of a job now that I look back at it. I did use some penetrating oil and sprayed some down the well before I hit it with the impact. Good luck, I just did mine not too long ago, let me know if you need help. Also, blow some air down in the well before you get to work to clean them out some. Mine had a lot of debris and gunk in there. You don't want that getting into the engine.

cruzomatic

Also, have the Lisle extraction tool (misspelled maybe) on standby. If you do break one you'll be done until you get one. Also use a good swivel spark plug socket, I had two. I bought the gear wrench version and then the one on Amazon that is built specifically for that job. I'm a tool hoarder so no biggie.

bbrad1775

I ran two cans of seafoam threw a tank of gas, ran half a can through the brake booster hose right before starting. While still warm, I blew out each hole with compressed air, added kroil penetrating oil (I like kroil the best) to each plug, backed each out a half turn, let sit while I grabbed a beer, then finished taking them out. Didnt brake a single one. I did have the Lisle tool on hand just in case. All hand tools for me. I didn't want to use and impact and risk striping threads. Also, for the back passenger side I found it easiest to remove the computer. Wear gloves while working on a hot engine.

Summers22

iTrader: (2)

I did this, except the kroil, everything else is spot on. Zero original plugs broke and I changed them as soon as I bought the truck with 113K on it.

stankyjeans

I would never run a Champion plug in my Ford! Either factory Motorcraft or Autolite.

Champions are good for one thing: Lawn equipment!

Summers22

iTrader: (2)

I bought an 07 Expedition with the 5.4 3 valve @99k. Dealer I bought it from (Chevy dealer) told me plugs were new. Fast forward 30k later and tons of misfires. So I go to check plugs, they were Autolite. Swapped with SP-515 and no more problems.

techrep

iTrader: (1)

Well.. at least the Chevy Dealer didn't lie to you on the plug change.

Summers22

iTrader: (2)

^^Exactly. All 8 came out fine and had huge gaps. I was shocked that they worked well for 30K after all the negative reviews.

Dirttracker18

FWIW
My buddy that is a certified mechanic and routinely works on F150's tells me that they have stopped using the Champions due to the constant warranty work with misfires.

I got about 20 000km out of the champions before I started having misfires. Back to the new design MC plugs and have put another 40 000km without issues.

Personally I will not run the Champions in these trucks anymore.

stankyjeans

I tried Champions years ago in a much older Ford and boy that was a mistake!
It seems for whatever reason - Champion is still building them the same and their plugs just don't like to work in Ford engines.

I wonder why? I always used to joke and say "Well it's because they are designed by Chevy".. I have no idea if that was true, but it sounded good! LOL,