"2003 Chevrolet Cavalier: Coolant Loos and Rough Idle After Replacing The Haed Gasket"

White 2003 Chevrolet Cavalier Front Left View

After having an overheating problem in the car I had the head gasket replaced since water and oil were being mixed. After this replacement, the overheating problem has disappeared. However, the car now shows a rough idle and it is still experiencing coolant loss (2-3 Liters every 2 days). Does someone have an idea about this? Could this be related to the head gasket replacement?

Answer: Did they resurfaced the cylinder head during the head gasket job? Did you get the car checked for coolant leak, and there is no external leak? Do you see thick, white smoke from the exhaust? The coolant either leaks externally, drips out somewhere i.e.: there is a loose hose clamp, leaking radiator, or leaks internally, in this case it would mix with the oil or gets into the combustion chamber. Get it checked for external leak first – ask a coolant system pressure test. If no external leak than they will know what to check next.