Thank you for this information. I just replaced the coolant outlet valve and didn't know this was a air bleed valve. I went through a sequence of running the engine to purge the air.
Well I stuck a flat tip in there and turned it to the left and there is like a little plastic stopper that keeps it from turning. I wish there was one video where somebody actually shows how to undo it. Can't find anything online
If you get the coolant flushed and your temp gaige goes up past 75% and you have no hot air out the climate system, you have an air bubble. Follow this video!
I am looking for this but can’t find it on my 2.5 2010 fusion. I just refilled the car after a water pump change and I think I have the overheating problem you talked about.
I was confused about this myself, because the screw only seemed to turn 1/8 turn. Someone suggested spraying PB blaster on the valve to help it turn (spray between the "screw" part and the outer cylinder). I did that. The bleeder valve is not a valve like a plumbing ballcock valve. It is a plastic screw (with the screwdriver slot) inside a threaded plastic cylinder (which attaches to a rubber hose). There is an O ring around the inner plastic screw part, which keeps the coolant and pressure in when "closed". Hold the valve (the outer plastic cylinder) in your strongest hand, then turn the inner screw part counter clockwise with the screwdriver until you see the O ring come a little above the outer plastic cylinder. Then you know it's open, and the air can bleed out. To close it, mine has a pink line on it that shows when it's closed. The screw part should be flush with the outer cylinder part, and the pink line should be fairly close.
I know this doesn't help you now, but it may help some who come across this. The same looking bleeder screw is on the upper radiator hose on the right side as you look at it from the front. Very prominent.
