Alternator

2006 FORD F-250
97,500 MILES • V8 • 2WD • AUTOMATIC
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NICKBRISCOE
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I have a 2006 F-250 6.0 liter diesel. I have changed the alternator 3 times and it is still quitting on me. Just recently, on the 3rd alternator about a week old, the power inside of the truck went out and the ABS light came on. The dealership put it on the machine and they said that it was the alternator. Does anyone have an answer?
Feb 21, 2011 at 7:54 PM
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DOCFIXIT
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ALT from Ford or parts house? are replacements 110 amp? are batteries testing good ie. load test?
Feb 21, 2011 at 8:09 PM
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NICKBRISCOE
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The first two were from Napa and the third was from Ford. I am assuming the batteries are testing good b/c the last alternator was changed by Ford. It is puzzling b/c for some reason the alternators is not charging and the truck runs on the batteries until there is no more juice. I did change both of the batteries less than a year ago.
Feb 21, 2011 at 8:38 PM
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DOCFIXIT
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At ALT wiring engine offcheck for voltage on Orange/Blue and Light green/Red wires. engining running voltage on large RED and Light green/ red wire. then measure across batt terminals let me know
Feb 21, 2011 at 9:12 PM
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NICKBRISCOE
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Ok...the truck is at the Ford dealership right now and I have not heard from them yet. I will let you know what they find. I just hope they don't break my wallett too much.
Feb 21, 2011 at 9:30 PM
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DOCFIXIT
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Yes they should make good on last ALT if proper testing was not done
Feb 21, 2011 at 9:39 PM
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NICKBRISCOE
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I just spoke to the Ford shop and they tried all the wires wiggling them and the computer is still showing a bad alternator. They put me another one on and they will drive it for a couple of days to see if the alternator light comes back on.
Feb 21, 2011 at 11:07 PM
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DOCFIXIT
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O.K. may be 4 the charm
Feb 22, 2011 at 5:45 PM
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NICKBRISCOE
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Yes me too. They are still saying it is the alternator. I spoke to the mechanic this morning and he is dumb founded. He has never seen or heard of that problem before.
Feb 22, 2011 at 6:14 PM