motorad thermostat

Can an alternator go out w/o any warnings?Car starts fine,no warning lights,noises,etc.Dealer says I need one?

I put my car in the shop to have recall work (unrelated to the engine) and for an oil change. I haven't had any problems whatsoever with my car. They told me that I needed a new battery and alternator. 2 years ago, I did the same thing and they told me


Look, if your alternator was bad, you never would have gotten the car started to begin with, because the battery would have been worn out by not being charged. This could be a scam. They could purposely discharge your battery, and then claim it won't

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