Question about Ford F-150
Replaced alternator and it didnt charge had alternator tested its fine now my battery wont charge and my truck will not start, its acting like there isnt enough voltage
Sounds like your battery is suspect, have a load test done on your battery at any walmart, also a bad starter will act the same way sometimes, when you have a good battery and a good alternator, also make sure ALL your battery cables and posts are not corroded.
Posted on Nov 18, 2013
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Posted on Jan 02, 2017
Check all grounds running from all electrical, If there is not a good contact this problem will occur, when you locate the ground surface take sandpaper or even a knife and scrape or sand the connector and the ground surface then reconnect it, It should return to normal if not then it could be a solenoid possibly but not sure
Posted on Sep 16, 2008
Hi, I can't tell you exactly what is wrong because there is too much involved at this point, what with 2 shops working with it, but I can give you some advise on what else to check. On the alternators and the wiring that supports them a small volt charge is taken off one of the slip rings, where the brushes ride, for the purpose of turning out the light. As I remember, this is a yellow wire that runs back to the dash.
To the alternator, it would be one of the wires that plug into the side of the alternator case.
Posted on Nov 27, 2008
Did you test the Alternator on or off the truck? It might be a problem with the control system to the Alternator. The regulator need a battery feed to work, It is usually ran through an alternator fuse.
Posted on Mar 11, 2009
I found the problem YEAH. It was the fuse that is in the side of the fuse box under the hood, Its where the battery wire from the alternator connects thru a fuse to go to the battery, Its one hundred and something volt fuse. It took care of the problem instantly.... Thank you all for your replies...
Posted on Sep 02, 2009
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