02-09 Vortec 4.2L I-6 Engine and Drivetrain
Hi everyone!
I know this has been covered in a few threads, but I have some symptoms not all. So here's the thing, two months ago after a long trip I felt my TB have a hard 1-2 upshift. It has been the bane of my existence since then. In that time to try and figure everything out, I have...