My car has been overheating, no sign of leaking, but coolant is going somewhere--timing belt and water pump are fine--no water in oil, no oil in water. car now will not start, after cranking over, the spark plugs are dry. Theremostat has been changed.

My 91 subaru legacy over heats, timing belt and waterpump are fine, the thermostat is new. No sign of leakage, but coolant is going somewhere. there is no water in the oil or vice-versa. Car now will not start, after cranking the spark plugs appear to be dry.HELP!

Most likely a headgasket leak.