poweredbyford1
Registered User
Looking at my brother's 1990 F-250 7.3
He pulled the cab and front clip off to paint / rustproof / better slap a turbo kit on it, and since he's put it back together, it won't charge. He's replaced the voltage regulator and the alternator already.
Checking battery positive to alt case shows it's not a ground issue, but there's a twist.
Someone somewhere in this truck's life cut the yellow wire that goes to the "A" pin on the regulator. Couldn't figure out why until i tried putting it back and now it WAY overcharges, almost to 18 volts.
So, it acts the same as when you just pull the pigtail and jump the "A" and "F" pins. Balls to the wall full field at all times. Thing is, regulator is a new reman, he said no one has factory Ford anymore.
I told him go to NAPA and get the best brand he can find brand new, not reman, and to cut that pigtail off going into the regulator, cause it's full of green crust and rust. If, once the regulator and pigtail are new it's still overcharging, what do I do next?
The pics attached are from the fender well on the other side of the truck. The only charging system wire i can think of that goes that way is the one for the battery light, which works. But what are these plugs, and do they have anything to do with the charging system? I don't think so, but an ID would be nice.
Thanks for any help guys
He pulled the cab and front clip off to paint / rustproof / better slap a turbo kit on it, and since he's put it back together, it won't charge. He's replaced the voltage regulator and the alternator already.
Checking battery positive to alt case shows it's not a ground issue, but there's a twist.
Someone somewhere in this truck's life cut the yellow wire that goes to the "A" pin on the regulator. Couldn't figure out why until i tried putting it back and now it WAY overcharges, almost to 18 volts.
So, it acts the same as when you just pull the pigtail and jump the "A" and "F" pins. Balls to the wall full field at all times. Thing is, regulator is a new reman, he said no one has factory Ford anymore.
I told him go to NAPA and get the best brand he can find brand new, not reman, and to cut that pigtail off going into the regulator, cause it's full of green crust and rust. If, once the regulator and pigtail are new it's still overcharging, what do I do next?
The pics attached are from the fender well on the other side of the truck. The only charging system wire i can think of that goes that way is the one for the battery light, which works. But what are these plugs, and do they have anything to do with the charging system? I don't think so, but an ID would be nice.
Thanks for any help guys