coolant system operating pressure

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jimmy3fingers
Posts: 26
Joined: Wed Sep 26, 2012 11:13 am
What year is your cabby?: 1989
Do you own a Cabriolet?: Yes

coolant system operating pressure

Post by jimmy3fingers »

can anyone tell me what the normal operating coolant system pressure is for an '89 vw cabby ? the shop i'm dealing with applied a pressure test for an hour and now says their is a leak in the heater core when there was no leak before.............jim
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Briano1234
Whats that smell?
Posts: 4105
Joined: Mon Mar 21, 2005 5:45 am
What year is your cabby?: 1992
Do you own a Cabriolet?: No
Location: Duluth, Ga
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Re: coolant system operating pressure

Post by Briano1234 »

Pressure test should be 14.5 psi or 1bar. If they pressure it to that, then it bleeds off slowly, with no hoses leaking then they can assume that it is the heater core.

You may have had a pin hole leak that was calcified but the pressure test opened it up.
Briano

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