Heater blowing cold air

First, if you've paid ford to fix it and they didn't then they need to make good on it. that said, it sounds like a communication issue between the control modules. could be a faulty module or wiring issue. either way its almost impossible to diagnose from here. you DO know your water pump and tstat are working because you've got heat in drive and its not overheating. make sure your coolant is at the cold mark AT LEAST in the coolant bottle. if so, then id call ford dealers and/or corporate customer service and ask them about it.

This guide can help

https://www.2carpros.com/articles/car-heater-not-working

Please run down this guide and report back.

I have had the vehicle at the dealership for a week. They say its normal and there is nothing that can be done.

Very bizarre. And not right id think. Call another dealer and speak to the service dept. Tell them your story and get their opinion. We'll go from there

Bizarre indeed. It can't be normal. I'll check with another dealership as suggested.

Very good let me know what you find out

Had a garage replace transmission. Everything seemed okay until went to turn heat on. No heat. Took it back said my heater does not work. Service manager said, you need a heater core and it is going to cost a lot of money. I said my heat worked when I brought it here. I googled no heat before I came and it said there is probably air in the lines if you just had work done. He says we do not have the equipment to bleed the line and if there was air in them it should have worked out by now. Then he says we did not mess with or do anything to your heating system. Replacing the transmission does not effect it. He has on my bill $20.95 for antifreeze?

Heater problem 6 cyl Four Wheel Drive Automatic 79,000 miles

I let the engine warm up to normal temperature and then I try to use the heating controls and I get cooled air then if I leave the controller in one of the heating positions after a period of time then I get a small amount of warm air, then it goes cold again. As the temperature outside rises then the air gets warm. The controller seems to stick in certain locations. I don't know if it is a vacuum problems or blender door. Any advice would be helpful.

The other day I turned my car on and the heat and ac was not working, so I determined that I blew a fuse. I got a new one and put it in but the ac/heat still wasn't working. Then later that night I turned on my car and the ac/heat had started working perfectly again. It continued working into the next day untill that night when I left my car for about an hour and came back and my ac/heat was not working again.

On the ac system try checking if you have a leak, maybe that's the reason why it is not cooling. You can buy a recharge kit to recharge the gas in order to detect where the leak is coming from. The faster way is by bringing it to your dealer.