Alternator issue?
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Tuned
Joined: Nov 2006
Posts: 296
Likes: 14
From: Jefferson, TX
Alternator issue?
Was out of town Saturday in the pickup ('95 F350 7.3) an hour from the house and the charging "light" (battery symbol) came on. We made it home and I pulled the alternator. Took it to the local parts store, it tested bad, replaced it. All was fine for a short test drive. This morning the light is back and the charge is low. Is there something that could be "eating" alternators? Or maybe got a bad replacement?
Last edited by jtexfisher; Apr 6, 2014 at 02:28 PM. Reason: added details
Lead Driver
Joined: Mar 2006
Posts: 5,096
Likes: 1,498
From: western SD
If the alternator you put on was rebuilt, chances are it went bad. A rebuilt gets just the part that is bad (ie brushes ect.). A remanufactured unit gets completely remanufactured. I would take it back to the place you bought it from, and have them test it.
Senior User
Joined: Jan 2011
Posts: 106
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From: Ridgely, Maryland
I have heard people talk about the plug on top of the alternator getting loose from laying over it. I have had a bad replacement alternator have them test the new before you leave the store to make sure.
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Tuned
Joined: Nov 2006
Posts: 296
Likes: 14
From: Jefferson, TX
I think all my cables are clean and tight. I give them the once over every oil change. After having to put two batteries on while out of town I got kinda picky about the cables 
. I'll double check the output wire and both plugs and if all of them are tight I'll pull it today(once it dries out a bit) and run it back for a check. Film at 11. Thanks all!
. I'll double check the output wire and both plugs and if all of them are tight I'll pull it today(once it dries out a bit) and run it back for a check. Film at 11. Thanks all!
Senior User
Joined: Sep 2010
Posts: 336
Likes: 0
From: Geary OK
Mine does the same thing. I have found the plug on top of the Alt. can become loose and cause the light to come on. While the light is on I still have 13.8V at the battery so it's charging. I made a shim out of a piece of plastic to keep the wires in better contact. 15 min fix
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