We have a 2000 Buick Park Avenue that was losing a lot of coolant. My husband has replaced the radiator, thermostat, lower intake manifold and the lower and upper manifold gaskets. After all this, there is white smoke and an oil burning smell coming from around the oil reservoir. He is prepared to change the head gaskets next. Is there anything else this could be or that should be checked?
The engine began smoking after the radiator and thermostat repair, which prompted the intake manifold gasket repair. There have not been any codes or overheating, according to the dash read-out.
Any suggestions would be appreciated.