4X4 not engaging right

[Logan]

They are the only line that can just pull off. i would give it a visual inspection. And after that, I am not sure. Maybe put a guage of some sort on it. Maybe someone else will chime in here.

[chopstx667]

Thanks for the help, I will look at the lines during lunch.

[klookybrown]

I thought you could only throw it into 4x4 HIGH when over 50mph??? IT states this in the manual- I can switch to low ok at a stand still- I'm afraid to try 4x4 HIGH over 50... is this all true???

[chopstx667]

I have not heard of that but will try to shift to 4lo when in standstill. I haven't been able to try looking at the lines or putting the hubs on manual yet. Is it bad for the truck if I drive around with locked hubs but have it in 2wd?

[matts7.3]

is your a/c runnig right or only through the defrost. My hubs would not lock automatically because of a vaccumm leak and the a/c would only blow through the defrost vents. I traced the leak back to the hub solenoid that is on the right side fender wall. Its tied in with the a/c so if your a/c not working prop. you prop have vaccumm leak or the solenoid has gone out.