Pressure cap? What exactly is this and where is it? The other day I parked
my vanagon, and sat for a minute to think about something when suddenly
there was this hissing noise like air or steam was coming out of a tire or
the coolant system. I jumped out of the vanagon, put my ear near both front
tires, and looked under the van for any sign of coolant. About then the
noise stopped. Couldn't find any sign of a nail in the tires. Saw no coolant
leakage. No problems. I don't know, maybe it was the car next to me. False
alarm or what?

>From: David Beierl <dbeierl@ATTGLOBAL.NET>
>Reply-To: David Beierl <dbeierl@ATTGLOBAL.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: 4th heater core burst in 1 year!
>Date: Thu, 28 Jun 2001 20:22:16 -0400
>
>At 08:19 PM 6/28/2001, Paul Cavanaugh wrote:
>>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.
>
>I'd get the pressure cap tested toute suite.  It's supposed to blow off any
>pressure over about 14 psi.  And the whole system is designed to withstand
>that pressure.
>
>d
>
>
>David Beierl - Providence, RI
>  http://pws.prserv.net/synergy/Vanagon/
>'84 Westy "Dutiful Passage"
>'85 GL "Poor Relation"

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