2012 Original Alternator Weird Noise Video Attached
 

Trying to figure out if it’s the alternator making this sound or it’s the timing chain tensioner. Very odd because it’s not consistent and if you read up timing chain tensioner specs the RPM’s are not matching up to the specs. Tuned up motor last night all spark plus abs coils. A lot of issues went away but can’t seem to figure out the noise.

have you used a mechanics stethoscope to try to pinpoint the source location?

its the alternator the bearing is going out.