voltage

[tingo99]

my gauge inside my car always reads borderline on the yellow or just above it if i turn my a/c on it just goes down a little into the yellow do i need a new alternator or battery

[tingo99]

i got the battery and alternator checked today and its all normal anyone know what it could be?

[mark21742]

main thing is that it stays out of the red, do you know what your voltage is with the engine running and with it off?

[Hi-Po]

Get a real test going. Buy ya self a volt meter, test what your alternator is putting out, see it with your eyes not with autozone eyes.

[tingo99]

i did the test and the alt. is pushing 60-63 amps now my question is i think we have 100 amp alternantors in our cars right so shouldnt it be pushing close to that or should i just upgrade to a 140 amp alt.

[tingo99]

oh and thats 60-63 amps at around 2000 rpm