0785 code change 1/2 solenoid still have code problem

Question

start up cold everything shifts good until drive about 2 miles after that not shifting change solenoid 1/2 shift/timing clear code not shifting

Answer 1

Hi there,

Since replacing the solenoid hasn't solved the issue, it's likely a wiring problem. Here is some more info for you.

P0785 GMC - 3-2 Shift Solenoid Circuit Electrical

Read more: https://www.autocodes.com/p0785_gmc.html