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I am new on this site and am looking for some help. Here is the situation:
I have a 2001 f250 v10 4x4.
My 4x4 is not working.
The dash light turns on and you can hear the actuator engaged as it should when the knob is turned. Everything appears normal and SHOULD be working.
However, there is no 4x4.
Also, my heater system stays on when the key is off. I have to manually turn the switch to off to shut the heater blower off, it will not turn off when the key is turned off.
I have been reading posts about vacuum leaks in the system. I checked my hoses all the way going to the hub, the hoses were cracked and have been replaced. I have suction all the way to the hub. after replacing all the bad hoses, still no luck, no 4x4.
Also, both of my hubs are STUCK in the locked postion, they will not turn.
I have read about bad seals. I left one end of the hose connected to the hub and i was blowing in the other end, and there was no back pressure, it was like blowing through a straw. Does this mean the seals are bad? Do i need to replace both of my hubs? Does anyone recommed warn? if so, do they work with the vacuum system?