Originally Posted by Jordy145

well after a little one on one action with my truck yesterday, i decided to change my plugs again! did cylinders 1 through 4 first, everything went smooth, then cylinder 5, everything went smooth, then on to cylinder 6....... i put the 9/16" swivel head spark slug socket (made the entire job an order of magnitude easier) and it felt like the ratchet was stripped. The plug was so loose, i unscrewed it completely by hand. Cylinder 7 was almost the same way, and then cylinder 8, i had to get the 1/2" ratchet out to break it loose. So after a month or so of chasing a misfire, all it was a couple of loose spark plugs. In the end, new COPs, and new plugs, and most importantly, she is running like new again (finally)!!!