I bought a 2012 Honda Pilot from a private sell. I was having issues with the car dieing on me. Anytime I had then A/C the car would make a funny noise. I went to the Honda dealership they told me it was my alternator. I got it replaced but it still dies on me when i backup and I have the A/C. The guy I bought the car from doctored the Carfax. The dealership informed me that the car was in a front end accident. Any idea what could be wrong?