This started about a month ago. I first noticed the overflow tank was low.
I check the oil and coolant once a week so it had lost a few cups in a
week. I filled the tank and hoped for the best.

I drove it to work every day with no leaking. Next weekend Van was parked
for 2 days and with the engine cold it lost the same amount overnight with
a fast drip. It goes for days with no drips then randomly drops 1 or 2 cups
in 8 hours or so.

A couple of times it has done the fast drip while hot and pressurized then
goes for days without a drip!

I've checked all the hoses but it seems to be coming from the right head.
In any case the engine is coming out next week but I'd really like to
understand why it's all or nothing instead of a constant drip.  Any
insights would be most welcome.

John Meeks
'91 Vanagon MV Phoenix
Stock 2.1 250K miles
Northern Michigan

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