Ugliergolem
Junior Member
- Joined
- May 29, 2021
- Posts
- 5
- Reaction score
- 2
- Location
- Colorado
- First Name
- Garrett
- Truck Year
- 1987
- Truck Model
- V20
- Engine Size
- 5.7
I have an 87 chevy V20 with the 350 and swapped my TH400 for a 4l80E and used the E-Z TCU transmission controller and it worked fine for a small while and now I can start it and it works fine and then after a short time of use it goes into limp mode and wont come out till I turn it off. I have gone through the entire wiring harness and all the wires are good and I even took the pan off the transmission and checked everything in there. I changed the speed sensors and that seemed to fix it for a short time but I am at a complete loss so any help would be appreciated.