Charging problem
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Tuned
Joined: Nov 2009
Posts: 250
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From: Austin, Tx.
Charging problem
'85 F250, 4x4, 460cid. I've replaced the alternator and the regulator, yet when i start the truck, the ammeter "bounces" like a ping-pong ball from side to side, all the way to the internal stops. Any ideas?
Senior User
Joined: Nov 2009
Posts: 175
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I would guess either you have a wire misplaced or the regulator is bad. The overvoltage relay is going bananas.
I assume the regulator has a bar plug that is fool proof so look at the alternator wires. If you are sure you have those wires correct then try another regulator.
I once went through three before I had one that worked.
I assume the regulator has a bar plug that is fool proof so look at the alternator wires. If you are sure you have those wires correct then try another regulator.
I once went through three before I had one that worked.
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Tuned
Joined: Nov 2009
Posts: 250
Likes: 1
From: Austin, Tx.
Update: tried 5 different vr's, didn't fix the problem. checked the harness going from the alternator to the vr, and it looked like s**t, so I decided to look for a different one. The only one I could find locally was from a '86 with internal vr. Bought a "75 amp" reman from Auto Zone, and with the "new" harness, the problem is solved. Thanks for the help and advice.
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badboyina67
1967 - 1972 F-100 & Larger F-Series Trucks
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Apr 9, 2002 12:40 PM
