New Alternator [email protected] Fuel Pump Whinning

[BOBS90TURBO]

I had to install a new alternator a week ago(auto zone,life warranty) and after, It ran great untill today, about 2 hours before it went out I could hear the fuel pump(walbro255) winning much louder than normal. Is it possible for a new Alternator to just go bad, could it have anything to do with the fuel pump. My logger says the Batt it is 10.6v

 

[fp-green-95tsi]

Check the voltage on the back of the alternator with a volt meter. You should be getting near 14v between the threaded stud and ground. Could be bad wiring or battery if the alternator is putting out decent voltage.

 

[BOBS90TURBO]

I'll do that in the morn. My battery is good(newer Optima red top). Thanks for the advise.

 

[BOBS90TURBO]

"""FIXED""" It ended up being the rebuilt alternator from O'riles went bad after a week of working fine..
Get this, THEY TRIED TO TELL ME IT WAS CHARGING FINE AT 11v. They really did not want to give me a new one under warranty. I argued untill they did.