There is vacuum from the hose connected to the intake manifold and through the black canister but when i connect it to the solenoid there is very little vacuum passing through to the hubs. My 4wd light is working in the drivers seat. So we pretty much isolated the problem so the solenoid then. I've ordered Warns Man hubs but wanted to make my self through the snow before they arrived


Ive checked hoses to the wheels. (Replaced)
Hoses to and from the black canister are ok and also to the solenoid. There is no or little air passing through the solenoid though but there is a powersignal sent to it. Have to be the solenoid?

Can I connect the hose from the intakemanifold directly to the "T" to engage the 4wd?