I have a 1994 RV that has a chevy 6.5 turbo diesel engine and a 4l80e transmission. For some reason my coolan reservoir tank is bubbling. I was told it was a leaking head gasket and to confirm to do a combustion leak test. So i did the test and it was changing colors. I did a blue devil head...
I have a 1994 RV that has a 4L80E transmission and 6.5 chevy turbo diesel engine. The issue im having is that if its driven cold it shifts perfectly. Once it warms up to normal running temps it stays stuck on 2nd gear. I have replaced fluid and filter, solenoids, speed sensors, and pressure...