I've got the 3400 was driving fine then out of no where overheated bad. Pulled over let it cool down had a buddy come look said it was the thermostat. So he took it to his shop now he says it's the head gasket.car only has 74k don't want to pay for thermostat if it's something eles. It's also not holding any coolant this has only happened last night haven't driven it since.