Your thermostat housing doesn't appear to have a bleeder screw. Typically, what I do in this situation is run the engine with the air conditioning going at full blast and the radiator cap off. I also like to perform this procedure with the car at an angle in the driveway, front end high. This way any air bubbles will migrate to the radiator.
Can you upload an image of the horseshoe shaped cap you mentioned?
Lastly, once the engine is at operating temperature, look into the radiator opening. You should see the coolant flowing. If not, you either have the thermostat upside down, or the water pump is not pumping properly.
Monday, December 19th, 2011 AT 3:22 AM