anti theft problems

I have a 2000 Mustang Convertible V6, with 73k miles, I was driving the car and was coming to a stop sign, all of the sudden the car lost power, lights came on dash and car cut off, when trying to restart the car the turns over and will not start, the theft light flashes very quickly and the...

Changed ignition cylinder now theft light flashes and car turns over but won't start.

I replaced my heater core a few days ago on my 99 GT. After putting it back together and dash back in it ran good for a day with the exception of feeling like it was accelerating differently on release of the clutch. Thought I was was paranoid and tired. The following day I started it to warm it...

recently i had to replace the serpintine belt after the car started right up but then immediatly died. I tried jumping the battery thinking that maybe the battery was dead, but that was not the case since the lights come on. When i try to start it makes a click sound and then nothing wven the...