As far as the coolant, is the oil milky brown in color? (Bad intake gasket). Pull spark plugs and note location of each plug, if one or more plugs are real clean, (white) then you have a bad head gasket.
March, 8, 2011 AT 3:27 AM
Also, check the exhaust. If you have white smoke from it, that is another indicator that coolant is getting into the combustion chamber.