I have a 2005 2500hd 6.6L duramax with a 5 speed allison. When starting the truck up, I noticed there was no light under PRND321 showing what gear I was in. When I backed out of the driveway, the truck rocked backwards and I knew something was off. Before I got out of the neighborhood, the ABS...
Looking for a little help here boys. 06 LBZ with 115k. Throwing code P0877 transmission fluid pressure sensor/switch “D” circuit low. Trans is all stock besides a shift kit. I will occasionally get "range shift inhibited" on the dash and will stay in 3rd. I've cleared code/ restarted truck and...