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2011 Mustang GT check charging system fault. Is the shop pulling my leg?

3.4K views 6 replies 4 participants last post by  ZEN357  
#1 ·
Hey all, I'm new here! Unfortunately posting out of desperation.

Background on my situation; I installed a ton of A/C parts a couple months ago (evap core, receiver, compressor, and radiator fan) and all went well. My brand new (not reman) compressor went out a couple weeks ago. I replaced it for free, no biggie. Well I start the car after the install and my check charging system message comes on accompanied by red battery light.

Figuring it was the alternator, I had it and my battery tested at a parts shop. Test was good but I did the alternator anyways, assuming that was the issue. The light did not go off. I switched alternators back and returned it. Had them do another test (no accesories running, high beams and a/c, etc.) And the battery output was consistent.

Well I'm trying to sell my car (San Antonio area if interested) and I can't have lights on to explain. So I take it to get diagnosed at a local reputable shop. They called me today to say they think it needs a legit OE motorcraft alternator for the message to clear. It sounds like a ton of BS to me but has anyone ever heard of this?

They also said alternator is good so I'm picking it up tonight and driving it while I contemplate my next steps. Any input is really appreciated!
 
#3 ·
I would take it to the shop and wait on it and tell them ahead of time, that once it's replaced with an OEM if it comes back on you want a guarantee to get your money back because that is not the issue then and make sure you get your old alternator when it gets replaced so you can put it back on otherwise they will pull the old, "oh we don't have it anymore"