Vacuum Pump

[stroker_ace]

I have already posted this in one of the 6.0 discussions but nobody has answered yet. I need to figure this out semi-quick. I live in Florida and have no AC so it is kind of an emergency Basically the vacuum pump went out today and now I have no AC and or on the fly 4x4 but Im just concerned about the AC for now. This would be the 3rd pump this month that has gone bad. I know that isn't a coincidence. There has to be an underlying issue to cause them to break. They don't stop running though. They keep on running nonstop. Help!!

[M7plus]

check your vacume lines to your front hubs, they have little plastic elbows that also hold the line to a bracket, if they break (which is common) then your pump cant build enough vacume to shut off. also have you checked or tried your vacume solenoid? it is about 4 inches twords the front of the truck from the pump. if it is no good then it also wont tell the pump to shut off. just my $.02 from my own experiance.