Has anyone tried this? Especially since its the opposite of Ford's TSB 08-7-6.
I just don't know if I have the ***** to use an impact wrench on a spark plug, but he makes it look easy.

 

That's the best method...

 

I wonder how many PSI he was running at? I also thought you weren't suppose to put anti seize on the threads?

 

Not on the threads but on the ground barrel. Nickel anti-seize. The jarring of the impact causes less chance of breakage than the twisting with a socket wrench.

 

I saw the same video and tried it out. I started with a 12volt Milwakee 3/8 drive impact. It had no effect.....truck had 82000 miles on original plugs. I switched over to a Matco 3/8 drive air impact and was able to get 7 of the 8 out. One of my back plugs broke but it appeared that it may have been broken for a while (truck would miss under heavy load). I did bring the engine up to temp and sprayed PB-Blaster down the plugs. Some came right out some took a foward/reverse sequence before they came. Use this method with caution but it does seem to work best. I would still have the extraction tools on hand.......just in case.

 

If I'm not mistaken, an actual Ford tech who hangs out around this site (Quinton?) swears by this method.

 

our senior master tech uses his 3/8" impact on everyone he does and he rarely has one to break on him..

 

I've done to many to count with an impact....especially the 3v's with the heat shield snout.....now on the 2v's I still use hand tools.....

 

https://www.f150online.com/forums/v8...ess-8-8-a.html