Advance Auto Air on Gibsonton Dr, Brandon FL replaced my AC compressor on a 1999 Chevy Tracker 21 Dec 09 ($559 for New Nippon Denso Compressor and $225 for labor). They said that it didn't need backflushing, nor an expansion valve or a new dryer because the system was clean when they checked it. They said they use only new compressors b/c of problems with remanufactured ones. When I picked the car up and turned on the AC, it seemed operable, but it was hard to determine since the weather that day was cold. I didn't drive the car or use the AC during the holidays. On 31 Dec, I turned the AC on for an extensive period and it didn't work. After spending $819.51 to get my AC fixed by the experts, I think it is reasonable to return it to Advance Auto Air to fix it at no charge. They called and said that it now needs a new expansion valve because it's clogged. For a self-contained system that was "clear, didn't need an expansion valve nor a dryer" it's not reasonable to me that it should be clogged after they just put a new compressor on and fixed my AC problem. They wanted to charge me $215 for parts and labor. The response from the mehanic was, "It was clear and clean when I tested the system. There's no way I can control when an expansion valve will get clogged. It can clog 10 minutes after you leave the shop" I called another shop and described this sequence of events. The shop owner said that there's always fragments to varying degrees in the system when a compressor goes bad, and back flushing is a standard practice always plus you have to replace the dryer and show a receipt to the manufacturer in order for them to honor a compressor warranty. I called back to Advance Auto with this info and the lady responded that "you don't always have to replace the dryer and that you have a 12 month warranty with us." I feel that Advance Auto did not do standard AC repair procedures to diagnose my AC problem and adequately fix it and they were flat out dishonest with me. They took shortcuts that standard Auto AC Repair companies take like backflusing, replacing expansion valves and dryers with a compressor replacment, which left me with an unserviceable AC system which they claim no responsibility for. This is a tough situation for the consumer, who is not knowledgeable of AC repair procedures. I do not trust them, would not recomend them to anyone for AC repairs or any other repair and feel that they are dishonest. I'm a Lieutenant Colonel in the US Army Special Forces and live by a code of honor. I cannot stand shady people or businesses who operate in the grey areas. I will protect others by giving this company an extremely negative rating in every rating system on the web that I can find. Don't use this company, ever!