I stopped by this store today on my way to Precision Tune and had my alternator tested; they were all so nice, especially the young lady who tested my alternator. Previously, I had Advance Auto on Durant and Auto Zone on Falls of Neuse Rd check; Auto Zone kept saying the battery was low, but did not take the time to charge it for me and Advance was able to tell me the alternator was not putting out enough output. I asked him if he knew why, because I read on the internet that it could be the regulator, poor connections, or a bad diode. They just said replace the alternator. The people at O' Reilly were able to tell me not only that I was right about the voltage regulator not working, but one of them was able to refer me to several local affordable auto shops who could help me see what could be causing it to fail before trying to put another alternator on my car (I just had it replaced two weeks ago). In addition they provided me with a print out that stated what steps I should take next, such as checking cables and connections (this can also cause it to not put out enough voltage). I am so glad I decided to stop by today. They now have a long term customer in me! GREAT JOB GUYS! read more