I'm loosing coolant, and it's mixing with the oil so I figure a blown
head gasket...or a cracked head. Does anyone know how to determine
which head the leak is coming from bewfore I pull the wrong one off?
Pressurize each cylinder at top dead center with the valves
closed with shop air, watch the coolant level in the radiator for
Coolant in the oil on a 95 3800 could easily be failed lower
intake manifold gaskets, same design as the crap that fails on
the other GM V engines.
Well I pulled the upper plenum, and don't see any visible cracks...
where the EGR hooks in it was all packed with sludge ?! and the PCV
valve had coolant in it. Not sure what could be going on, maybe it is a
busted head gasket. I'll put the plenum back on and see if cleaning out
the EGR helped any (at least trhat will get rid of that engine code).
Again, thanks for the suggestions and I'm open to other advise if
anyone hgas any.
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