My1995 toyota camry XLE V6 alternator has developed a distinctive low pitched whining sound after only 200 miles of use. The alternator is a rebuilt one from Advanced auto parts. It also becomes very hot to touch after only several minutes after start up. There is also a distinctive “hot” smell fro…

Defective part (it happens a lot), bearings bad, wrong amps output… I would just take it back and swap it out asap…

Concur w DMP above, a faulty rebuilt alternator seems very likely. Faulty rebuilt parts a pretty common problem by reports here. I’m just a driveway diy’er, only replaced maybe a half-dozen parts with rebuilt parts over the years, and I’ve experienced two faulty parts store rebuilt starter motors…

Thank you for taking the time to respond. Good idea about paying the core charge yourself and keeping the OEM part. I suppose you live and learn, but good to know :+1:

Likely a bad part. Return it and spend the extra bucks on a new one if they offer that. Get the premium one, not the cheaper one as well. I am not always a huge fan of reman equipment, especially in my IT line of work. Of course I never see the success stories, only the failures but these usuall…

There could be a shorted winding in the alternator. You could have injected some grease in the bearings of the old one and kept going with it. Maybe one of the diodes in the rectifier is shorted. You may want to consider injecting grease in to the bearing in the A/C compressor. Last year my 30 year…

This may be more work than you want to do, but if I had lost the OEM alternator, I would get a used OEM one from an auto recycler. If I had any doubts about it, I would take it to a local auto electric shop and ask them to test it and refurb it as they deem reasonable.

Thanks for all the responses👍

I had the alternator tested on the vehicle at the store where I bought the part. At the time it was not making any unusual noise. The car had not been used since my last post. The result was excessive “flutter”. That was the display on the tester. Otherwise it was running ok and charging ok. They d…

[image] meehanjames11_147645: I’m just curious as to what excessive “flutter” is? Probably referring to excessive ripple. Sometimes caused by leaky diodes in the alternator.

New ( rebuilt alternator) whining & running hot after only 200 miles

Maintenance/Repairs

meehanjames11_147645 September 18, 2023, 1:43am 10

I forgot to mention that the alternator drive belt is in excellent condition, runs quiet and is adjusted correctly.

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New ( rebuilt alternator) whining & running hot after only 200 miles

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