Carrier/rack problems of the 2008 Ford Edge

I own a 2008 Edge with approx. 150,000 miles on it. The car has stalled on me 3 times in the last 3-4 months. The first time the car stalled I was on the freeway during rush hour. Thankfully I was able to restart the care and move it off to the side of the freeway before it stalled again. After having it towed, I was told that the water pump had cracked. The water pump involved a lot of labor and cost me about $1100-$1200 with the tow. About a week later, I was again driving on the freeway and the car stalled. Again, I was able to make my way off the freeway before the car died completely. Once again, I had to have the care towed. This time, I was told that the engine appeared to have coolant in the oil and created a murky goo. My engine needed to be replaced. Another $2200. The last incident was Friday, may 20th. I had no indication there was a problem of any kind. I literally drove less than half a mile when the care overheated and stalled. I called and emailed Ford to see if I could get any assistance, but have either have had no response or an email indicating that if the car is not under warranty or if no recalls have been issued, I would be responsible for any work that needs to be done. I contacted the dealership where I purchased the car, but have not received a response. I am out of money and options. I have been without a car for almost two weeks and feel incredibly frustrated by this situation. I find it absurd that a vehicle would get a blown engine with no warning and that a recall has not been issued. I am facing another $1200 or so in vehicle repairs.