Try a Coolant pressure tester. Can be had for $50'ish plus an adapter (for dsm) from PA.

This topic is beat to death every year and there's a really good write up by Ryan lalibert (I think).. Too lazy to find the link... Alex?

Oh and I asked what you're using for Coolant. I run water wetter and distilled only.

Last edited by Mike Eng; May 25, 2016 01:59 am UTC.
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