My 91 2.1 has been acting strangely. I don't drive it much; my
daughter drives it a lot though. It came down with Vanagon syndrome on
Friday and I THINK I fixed it by doing what I have done before on
other Vanagons, which is make sure the connections to the AFM cable
were nice and clean. It's been raining for days, that does take its
toll on connections..

After I got it running again, I noticed the coolant was low, which is
unusual for thise van EXCEPT for the times it has had problems:

valve on the rear heater�popped the top of off the plastic housing.

one of the hoses

coolant tank--it has gone through two used ones a a new one in a
little over a year, possibly 18 months but way to soon. The tanks all
split at the top. I had this happen on my 90 years ago when it
developed head problems. This one will be the fourth.

Some time back I rigged up a pressure tester on a coolant cap to see
if it was reading too high. In the driveway, the numbers look good.
The trouble is, I can't see what the numbers are going to pulling a
hill, etc.

Car exhibits no other bad-head symptoms.

But it's got to be something, four tanks in less than two years is not
a coincidence.

Advice?

Jim