First of all, it ran hot after radiator hose busted and we found oil in the coolant. Was told it was a blown head gasket and after that mis diagnoses found out it was the oil cooler bad. Replaced oil cooler and head gaskets and now have a valve cover gasket leak and changed gaskets twice and still leaking on back side. Bad exhaust sounding leak on front manifold. Replaced gasket and still leaking. I don't see any cracks in the manifold but doesn't mean I don't have one. This is a V-6 3.0.Put your issues up here, someone will be able to help (and save you a trip to the shop).