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Old 09-20-2014, 09:17 PM   #141 (permalink)
ksa8907
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Join Date: May 2012
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Volt, gas only - '12 Chevrolet Volt Premium
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I hate trying to diagnose car problems on the internet. Fyi, ive never used a pressure tester before.

Have you replaced your pressure cap?

Here's an idea, pump it up to 16psi and let it drop on its own. Do this about a dozen times then try and start the car. If it wont turn over from being hydro-locked you know you have a bad headgasket

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