When the engine is cold, open the radiator cap and start the engine. If the coolant comes shooting out, it's a head gasket. If it doesn't, I think you have a air pocket. How did you try to bleed the system? I would start with a new thermostat, radiator cap and get the radiator checked for a partial blockage, this will have to be done by a radiator repairer, start here and let me know what you find. Also, let me know what size V6 you have.
Wednesday, July 29th, 2020 AT 10:11 AM