che22879
< Yes that was my foot!!!!
Since I knew I needed new spark plugs I read every thread I could find and watched a lot of youtube videos on successful plug swaps. Best advice I found was to run at least 2 bottles of Techron before attempting the plug change. I ran 2 bottles and 25 gallons of gas, put about 330 miles on the truck. It actually did help with the misfire but it was still there. Picked up 8 new Motorcraft SP 515 spark plugs and new plug boots this morning, took my sister to work and waited for my buddy to open his shop. He had the right spark plug socket and the Lisle tool in case one broke. After talking crap a bit we settled on a price. $70 and a helping hand. I couldn't beat that anywhere. We even used some of my HF tools. He's a little guy with small hands so it was a lot easier for him to get the plugs. He didn't remove the air filter box or the computer. Just dove right in. I mentioned using the 3/8 impact but he just laughed. All he said was "I got this". No carb cleaner, no PB blaster or anything. He told me: "the secret is to do it by feel, trust me" To be honest I was skeptical, but if he broke one he had the tool so on with it. 
The first one came out without a problem.


Here is a new redesigned plug next to the original, notice how bad the electrode wore out.


The next 2 he loosened a 1/4 turn then tightened it back up. Loosened it again and just kept going. They both came out screeching the whole way out. The last one on the passengers side was a lot harder, I thought for sure it would break. He took his time, worked it back and forth then he said: "Oh crap!... just kidding", and took out the last plug. I damn near pooped myself.
That plug alone was worth the $70 I payed him.
Half way there.

The first 3 plugs on the driver side were pretty much the same as the 3 others, a little back and forth and they came out screeching. The last one was a bit harder but he took it out.


All the new plugs got nickel anti seize and new boots. Drove it to the bank, got his cash, and drove back. Truck was a whole other animal! More power and smoother acceleration. It was like driving a new truck home. No hesitation or misfire whatsoever.

The first one came out without a problem.


Here is a new redesigned plug next to the original, notice how bad the electrode wore out.


The next 2 he loosened a 1/4 turn then tightened it back up. Loosened it again and just kept going. They both came out screeching the whole way out. The last one on the passengers side was a lot harder, I thought for sure it would break. He took his time, worked it back and forth then he said: "Oh crap!... just kidding", and took out the last plug. I damn near pooped myself.
That plug alone was worth the $70 I payed him. Half way there.

The first 3 plugs on the driver side were pretty much the same as the 3 others, a little back and forth and they came out screeching. The last one was a bit harder but he took it out.



All the new plugs got nickel anti seize and new boots. Drove it to the bank, got his cash, and drove back. Truck was a whole other animal! More power and smoother acceleration. It was like driving a new truck home. No hesitation or misfire whatsoever.