hey guys, after a week of driving my truck with a bad idle and miss like crazy, and 3 trips to the repair shop with them scratching their heads and pissing me off. all this time no light came on, this morning she finally flashed me lol when i got to work i put my tuner in to pull the codes, misfire on 3! i drove her to the shop told them what i found. i was getting depressed with my baby running so crappy. so hopefully today when i get her back she'll be purrrrrring again. thanks for the replies and input guys! happy fourth to everyone!!