Chrysler Sebring Overheating
My daughter has an '04 Chrysler Sebring 4-cylinder with 123k miles. We've had it in the shop several times after it's overheated. It only overheats when on the highway for 15+ minutes at 60-70 mph. Doesn't overheat while driving around town. Coolant level is OK, the thermostat and radiator have been replaced but the problem persists. The radiator was thought to be plugged but a leak was discovered. Now we're wondering about a cracked head or head gasket. There's no coolant in the oil and no coolant on the driveway. The fan blows cold air, not hot. What might it cost to replace a cracked hear or head gasket? Any thoughts??