View single post by John Finch
 Posted: 05-12-2006 09:17 pm
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John Finch

 

Joined: 08-01-2005
Location: Minneapolis MN
Posts: 122
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Putting the selector on cold closes the valve. But its on the discharge side of the heater core IIRC. So this means (hot) coolant is likely in the heater core up to the valve. It is not circulating but is under pressure so will find the hole in your core. Only solution I can think of is to repair the core or bypass it (as above) until you choose to.