hi guys i have a 2001 workhorse the transmission do s not shift into 4th gear . no codes i could shift with the tech2 into 4th gear .the guy change the trans and the ecm. the only thing i see is the tft temp is 120 to 130 .the trans id is 4l80e . alldata do no...

FIX posted 3/4/2009

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle