Re: Misfiring question
The check engine light is on, a lot vacuum lines were wrapped with that heat tape. I asked the dealer about the lines since no one else has them and the dealer said it was a
wiring bundle but it was like 180 dollars. The guy before me had the values worked on a year ago thats it.
Take your truck down to autozone and have them read the codes, If you don't have an autozone nearby, then take it to the closest one with a OBD2 tester. Then post them here, and I'll tell you where to look, or what you'll need.
Good luck, Chongo 
