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Mr 5 0 · 05-16-2002, 01:12 PM

Unfortunately, it sounds like you have a leaking (blown) head gasket.

You can get a good idea just by hooking up a simple vacuum gauge to a hose that goes directly into the intake manifold. A quick and dirty method is to use the MAP sensor connection (T-fitting required) or use the PCV hose (but it may affect your idle).

Any big fluctuation in pressure (10" hg) probably indicates a blown head gasket (or a dead cylinder) which would explain your overheating problems despite all the fixes you've already tried.

05-16-2002, 01:12 PM	#4
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	Leaky head gasket Unfortunately, it sounds like you have a leaking (blown) head gasket. You can get a good idea just by hooking up a simple vacuum gauge to a hose that goes directly into the intake manifold. A quick and dirty method is to use the MAP sensor connection (T-fitting required) or use the PCV hose (but it may affect your idle). Any big fluctuation in pressure (10" hg) probably indicates a blown head gasket (or a dead cylinder) which would explain your overheating problems despite all the fixes you've already tried.