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Q: My alternator was just replaced. Now it's whining and locking on me! Why?

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After it was replaced, now the mph shots to 110 mph when im barely pushing on the gas. It also has a loud whining/whistling noise and if i go over, what i assume is 40mph, it starts to shake and jump. What do you think?

My car has 169000 miles.
My car has an automatic transmission.

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