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Head or Lower intake gasket?

806 Views 2 Replies 2 Participants Last post by  Brandyn
Hello, I have a 1995 V6. The coolant in my car slowly disappears. It is not leaking on the pavement, its not in the oil, and it does not look like its coming out of the exhaust but I suspect it is. I did a pressure test (used a vacuum and gauge on the radiator) and the cooling system held pressure for about 20-30 seconds then very slowly started dropping.

My uncle (a mechanic) says based on that information he would suspect a lower intake manifold gasket. What do you guys think? I haven't done a compression test yet but that should be the determining factor between the two right?

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I didn't think of testing it like that, thank you for the advice. I just really hope its not a head gasket, my header bolts are so rusted you wouldn't even know they were bolts...
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