How to bleed a coolant system

If you look on the top of the thermostat housing you will see the bleed port. Step on is with the engine cold, break that bleeder screw loose, don't remove it though. Next be sure that the radiator is full, then top the overflow bottle up to full cold. Now start the engine, turn the heater on full and let it run until the lower radiator hose starts to get warm, that signals coolant flow through the thermostat. Shut the engine off. Now carefully loosen the bleeder screw. Do not try to remove it or you risk a bath in very hot coolant. You just want to crack it enough that trapped air can get out, you will hear it hissing. When you get only coolant out, Close the bleeder. Now top off the overflow to full hot. Now let the engine cool completely. Top the overflow to full cold if needed. Take it out and drive it and see if there is still air in the system. If yes, repeat the bleeding process.

Good to hear, please use 2CarPros anytime we are here to help.

Have used the ramp trick on stubborn ones myself. These days I just use a vacu-fill system, so much easier. If the bleeder hasn't been used it can be tight, so be gentle with it.