How many Mark LT on this forum?
2006 Mark LT
I also have a 2006 Mark LT. I changed out the spark plugs last night to the new Motorcraft SP502 version. It was a lot work, but worth it for the peace of mind. I started on the ones in back thinking I was knocking the hard ones out and then the hex nut came off the last one on the front drivers side. Its a good thing I got the Lisle tool, it was worth the price I paid. I only wish I had a picture of my face when I found out the plug broke.
I really like the truck and it's my 5th Ford truck. I am working on a slight rough idle issue. I am thinking of having the PCM flashed at a dealer or trying a different tune. Does anyone have this same issue?
Cheers,
Wayne

I really like the truck and it's my 5th Ford truck. I am working on a slight rough idle issue. I am thinking of having the PCM flashed at a dealer or trying a different tune. Does anyone have this same issue?
Cheers,
Wayne


