Warn Manual hubs and Vac Lines

[jngreen]

I have no leaks and both my heat and AC works just fine in 4x4 and doesn't default to defrost. However i have noticed every once in a while when i key on to cycle the glow plugs...the vaccuum pump runs, but it doesn't run that long and it doesn't do it all the time.

Mine runs everytime I turn the key on, but I don't drive the truck everyday and it doesn't run very long. I wouldn't worry about it, I bet it would do the same if you plugged the vacuum lines for the 4x4.

 

[Zmann]

same here