Powerstroke SOS .....Alternator.....correct testing procedures
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Laughing Gas
Joined: Apr 2009
Posts: 903
Likes: 9
From: melbourne beach, fl
Powerstroke SOS .....Alternator.....correct testing procedures
97 psd,90k original,had a headlight switch burn up as well as fuse.The battery light is on,new cables /batteres that are charged.The Alt 3 pin plug has a light green /red,white, and yellow.With key on and engine off theres 12v to the lt green/red when not plugged into the alt.When plugged into alt only reads 4v.This is a brand new Alt from DB electrical in TN.Unplugged black/orange heavy gauge in backside to test circuit.This is the only hope i have to fix so all help is appreciated!!!!!!!!!!
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Wiggle the wires to the 3 pin plug around and see if the light flashes on and off. The light might just be from a shorted wire near the plug and not have anything to do with the alternator.
How many volts does the alternator put out at idle? That's the important question.
How many volts does the alternator put out at idle? That's the important question.
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