Compression Ignition Addict
Join Date: Apr 2007
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Leaking head gaskets sound pretty likely.
With coolant temps at 195*F (100*F ambient), I get 9 psig typically. After venting mine and running it hard for 100 miles the most I see is 2 psig (normally 1 psig) and that is with the coolant at 205 degrees (coolant pressure will go up about 1 psi for every 8-10 degrees on a system w/ proper coolant level).
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Last edited by bismic; 08-15-2012 at 06:29 PM.