why is my 2007 ford freestyle stalling when coming to a stop

Stalling usually means a vacum leak at the brake booster first try to have someone press brake pedal while idling an pop open hood an listen for a vacum leak. While pumping brake pedal if it's leaking you hear a noise like sucking air also let it idle for 2 min shut off engine pump brake pedal 3 times you should have vacuum for all three pumps 4 time pedal will get harder to push pedal if you only have 1 pedals worth its your brake booster

Throttle body or IAC control will give you a DTC a brake booster will not js