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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Yep. Got mechanical gauge hooked up and it's holding about 15psi at idle when warm. Got the plenum gasket changed along with the valve cover gaskets. Doesn't seem to be leaking anymore. I think most of the leak was from the intake gasket.
It's enough to leave a small spot overnight. Seems like more than a valve cover gasket, although I think they need changed. I have had the truck for less than 2 weeks. It's a 96 1500 with 150k on it.
Wash the engine and use a leak detector if the source hasn't been pinpointed. If the oil pan has ever been removed, a leak can form if the surface area was not cleaned and no sealant used in the corners where the rear main contacts the block.