[guiness77]

The problems started with it being a friends 96 Pontiac trans sport with 112K miles on it. One day it just died and wouldn't start, check the basic items (plugs,wires,air filter,radiator fluid,oil,ETC.) needed all new everything, noticed there was no radiator fluid in resivoir and upon draining oil it just kept pouring and pouring and after letting it settle lo and behold the GM dex cool was mixed in the oil (I had been told this stuff corrodes gaskets and engine parts, and that there was a class action lawsuit involved) so I replaced the head gaskets,plugs,wires,fuel filter,tps,OIL PUMP,thermostat,pcv, and so on, and after all this it starts but it sounds like its knocking a little loud, and the low oil light is on but the pressure is reading high, the engine light is on but not providing codes. is there something I may have overlooked? any help no matter how mundane would be greatly appreceiated.