2 questions Q-trac and Transfer case grinding
I have 2 questions I have read up on here about the q-trac system. Which there is some really good write ups explaining what the function does.
My first question is,
I have been playing with the switch in the glove box. I turn it one way and I hear a vacuum noise and turn it the other way it goes away, although I dont feel a difference in driving it. The light stays on saying Emergeny drive which I know is directly tide togother. Since nothing seems to change when I drive it with the switch either way. Is there a vavle that could be plugged, or something else I should check next? I have followed the vacuum all the way thru and it seems to be there.
I have been playing with the little lever on the floor next to the drivers seat. It should change it from H-N-L or visa-versa. If I put the transmission into nuetral and move the lever from HIGH to LOW, and then put the transmission into drive it does nothing. When I out it back into PARK to change out of the gear, it grinds and then will make a popping noise before it shifts. What could be the problem? any ideas?
Its a 1976 with a 258, and has a 400 trans, with q-trac.