theft light

Why did you replace all those parts? that is a shame. The first thing to do, in just about all cases on a modern vehicle, is to scan the computers. they have lots of software that is designed to help you figure out what the problem is and there are literally thousands of trouble codes that trigger when some part of a system is failing. the people at auto zone are not trained technicians. it is like asking a clerk at a drug store to treat an illness. take your Ford or tow it to a sharp shop that knows how to do electronic/computer/anti-theft diagnosis, or you will just be wasting your time and money Good Luck!