I think someone here is a tech and could give me alittle help.
I have an 02 3/4 duramax/allison. When I start the truck it sometimes does not want to go into gear. The gear position guage (if that what it's called) is not lit up. Sometimes it is, but the light is blinking on whatever gear I try to put it in.
Sometimes it will go in gear, but be stuck in 5th like a go cart.
I'll turn the key on and off a few times and then it works perfect.
Any idea wtf this is? I'm also getting a tranny communication error.