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Billy V
08-06-2003, 19:55
I have a 93 6.5
Does anyone know what the alternator output should read @ Idle and also @ 2000 RPMS ?

Volts and Amps Please

Thanks
Billy V

AJ650
08-07-2003, 03:47
100 or 105 amps depending on alt, 14.5 volts. Shouldn't vary within the 2k range.

JCM5
08-07-2003, 14:24
Billy,

Alternators are rated for full load at some RPM.
At idle with a 100 load box, i would be surprised if you see over 60 amps. At 2000 rpm you should see the full 100 that you are pulling.

Billy V
08-07-2003, 14:47
Thanks Guys
I'm getting a reading of 14.20 volts and 103 amps.


the truck has been sitting for awhile soo it was hard to crank, the batterys were just a little low on charge.