Perhaps your coolant didn't go anywhere.

Perhaps it was never filled sufficiently.

It could have been filled to the full = mark, but still had air pockets in the lines or engine due to not having the air = bled off properly.

Air pockets in the engine will overheat = the engine.

Bill

----- Original Message -----

From: Bill Calder

To: vanagon@GERRY.VANAGON.COM

Sent: Monday, May 22, 2000 = 10:58 PM

Subject: overheating...but = where's the antifreeze going?

Wondering if anyone can help here...engine was = overheating due to obvious lack of antifreeze,

but there are no obvious signs of leakage = anywhere. Pressure tested the system

at like 20lbs for 30 minutes, and not a drip = anywhere. If my main fill tank was down where did

it go?

Here's the situation:

'89 westy overheated and light came on the temp = guage a few months back.

Took it into the shop and they checked everything, = flushed it, pressure tested the lines, fan works, etc and no = obvious

cause. After they do all this though, the = guage stays normal and seems fine so drove it away. =

A couple of months later it happens = again. Only this time, its clear why: the = main antifreeze tank is low, so we've lost coolant and that's the cause. = Everything else in the system including radiator fan checks out. Great. So = refill and everything seems cool, for now. But the shop can = find no obvious signs of leakage anywhere, not even a = stain, and there's nothing obvious that says where the lost antifreeze was going. =

Anybody have any clues as to the nature of the = problem, given a)thermostat works, b)fan works and comes on at the right time, = and c)no obvious signs of leakage.