Hi David,

I seem to think this is some kind of coolant pressure problem. 4
heater cores (all in the rear), plastic distribution tower, plastic
return T past the heater, all burst in one year.

The two differential coolers are fairly thin (aluminum?) parts on the
automatic transmission. There was no sign of corrosion, of course. I
had never heard of this happening to a Vanagon!

My mechanic has not come up with any ideas. I am rather disappointed,
as I felt after the 4th item burst, that there is a serious problem.
That was before $1700 for a transmission rebuild.

Thanks for your response. Please let me know if you have any other thoughts!

Paul

>At 07:40 PM 6/28/2001, Paul Cavanaugh wrote:
>>My 1990 (180k miles) GL automatic just had it's 4th rear heater core
>>burst in 12 months!
>>
>>It also has burst two (metal) differential coolers, flooding coolant
>>into and ruining my transmission.
>>
>>Any ideas what could be happening?
>
>Er...you got the antifreeze mixed up with the muriatic acid?  Did a
>radiator flush and didn't get it all out afterward -- that seems
>fairly likely, actually.  This almost has to be a corrosion problem,
>ISTM.
>
>david
>
>
>David Beierl - Providence, RI
>  http://pws.prserv.net/synergy/Vanagon/
>'84 Westy "Dutiful Passage"
>'85 GL "Poor Relation"