5ktq vacuum leak

[Steve Burke <sburke@wvu.edu>]

My car pants like a dog at idle sometimes, and the FV duty cycle is
80%, so I suspect a vacuum leak.  Testing with a vacuum pump, the line
that tees out to the diff locks won't hold a vacuum at all.  The diffs
lock fine, though.  Is this normal?  If it's not, then where should I
look for the leak in the diff lines?  Where are other places minor
vacuum leaks happen?  I've taken care of all the major hoses, and my
dipstick and fill cap seal well.

		Steve Burke
		87 5ktq 152k