No I haven’t replaced the internal wiring harness, I did visualize it and inspect it visually nothing seemed off, another thing to note is I also have an o2 sensor code everytime
I have a 1996 c3500 dually with 5.7/4l80e I have code “p1870 transmission component slipping” which causes the trans to go into limp mode and I lose OD and tcc lockup I have replaced the valve body with all solenoids I have replaced input and output speed sensors and even torque converter with...