Get a cylinder leakdown test done. This is the only 100% accurate way of knowing if the headgasket has failed. Some quick home checks would be to check for oil in your coolant or vise versa. Or remove your rad cap with the engine running(make sure there is no pressure in the system and the car is cold first) If the coolant starts to bubbling and boil and/or if you see exhaust smoke coming out, chances are your headgasket has failed.
Tuesday, November 25th, 2008 AT 5:37 PM