Air Conditioning problem
2007 Ford 500 6 cyl Two Wheel Drive Automatic 10026 miles

I have had a similar problem with the AC. When I start the car it seems as if it will be cool. Then it gets warm a few minutes later. Then when I ramp up the engine it gets cool so I have to sit there in park with my foot on the gas peddle making sure to be at least 1500 RPM. When I'm on the highway it's cool because it's constantly above 1500 RPM.

I was told today it's a valve and it will be replaced tomorrow for $250.00.

Have anyone else had this problem?