[aodriven]

I have a 89, S-10 4.3 with 210,000 on it. My 4 wheel drive has given me alot of trouble. I've changed out the switch on the transfer case, a few times and replaced vacum lines before. This is a new problem, the vacum going to the diaphram under the battery the diaphram sucks in and pulls the cable going into the
transfer case, but still no 4x4. I've jumped the switch on the transfer case to see if it still worked and it does. I've even driven it in 4x4 with the wheel peged to one side or the other and no jumping around or anything. I don't know why the hubs are not
working, please help...

 

[austroblazer]

-he man
think we should make an forum just for 4x4PROBLEMS
this thing really :evilg:
maybe u read bout my problems also-
i think the best is really to make it MANUAL(cable operated like posilock) -there are so many things in this vacuum **** that can be damaged its really bad!
why dont i have the money to buy a new zr2
hope u can fix it
peter

 

[Tha_Boom]

it sounds to me you mgiht have broken the actuator cable for the 4x4.

 

[ONEBDGMC]

try taking a pair of vice grips, or a clamp, and manually pulling the diapram to the closed position, thereby pulling the cable, if that works, great!, if it dont, ur in for probs!