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I pulled it apart last night and they aren't as worn as they looked, but now is the time to replace them. They would still accelerate the wear of the new brushes. I had had a failing winc
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I just went out and played with it a little more. It's the first chance I have had in 10 days since I have been out of town. I know you guys want it to be the pigtail side but it's not ac
So I am pretty sure my alternator died.
I left for work this morning and noticed the headlights were a bit dim. I assumed it was frost on the lenses so I fired up the high beams/fogs and it got dimmer. I then noticed voltage was holding about 11.4 at the ECM (from my touch). I gave it a mile or two to see if maybe it was low batteries and the voltage never came up so I turned around.
When I got home I separated the batteries, hoping to find one bad one, and both were at 11.3ish. Then I disconnected the alternator wire and fired the truck back up. With a voltmeter the alternator output started at 9v and dropped to 6v just holding the volt meter on it.
I also put a 10A charger on the batteries for about 10 minutes and the voltage came up to 11.6 so it appears the batteries will accept amperage but the alternator isn't supplying any.
I never got a charge light or CEL... does anyone know the threshold for a charge light?
I will do a continuity check of the fuseable link when I get home tonight.
I had the alternator checked out in Nov of '13 and the brushes/bearing were replaced. I was told it was very rare for the windings to fail. It only has 30K miles on it since then, but maybe a new armature brush contact is needed??
Thoughts?
Anything else I can check?