Question about 2001 Volvo S80
You absolutely need to find leak before driving.
If you can't see any dripage, you can try borrowing a cooling system pressure tester from Autozone.
You pump it up higher than normal pressure.
If the system if full, you will see the leak, or the gauge will drop.
If you don't see any, then it may be a head gasket.
If you start the engine, the pressure will fluctuate when the leaking cylinder fires.
But check the plugs for water.
Posted on May 13, 2010
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Posted on Jan 02, 2017
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