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Heater Core V70-XC70 2000

posted by  KlausC on  Tue Jul 20 04:10 CST 2010
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

When your coolant reaches 240F (very hot), the system pressure is up but not enough to start 'blowing' seals. Remember, the coolant flows through the core, it doesn't stop there and build up excess pressure.

I forgot the exact pressure but it is less than 15psi, any more than that and it will be vented through the cap on the overflow bottle. That is pressure that can be held with a thumb on a hose.

Klaus
--
Why are Volvos so endearing? Its just a car.






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