voltage regulator connections
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Senior User
Joined: Jan 2004
Posts: 104
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From: ATCO, NJ
voltage regulator connections
There is a fourth wire coming off my regulator that seems to have a fusible link on it. The end away from the regulator is broken off (likely from my hasty removal of everything in the engine compartment to install my 351W) Since I cannot see any wires going from the regulator to the solenoid or battery, I am assuming that this is what charges the battery and the reason my truck runs but needs repeated jumping. To replace this, can i just connect it to the positive terminal of the solenoid? Instead of a fusable link, can i use a large fuse? What amperage rating would be appropriate for this position in the charging system?
I also want to say thanks for all the great info on this site. My 351W 78 F-150 has been a total success because of it!
I also want to say thanks for all the great info on this site. My 351W 78 F-150 has been a total success because of it!
Fleet Mechanic
Joined: Aug 2005
Posts: 1,462
Likes: 74
From: Hartford, AL
on a four wire setup, there is one wire that comes off and has a silver condenser cylinder attached to it. It goes nowhere. Not sure of the color, would have to go out and look at mine. I'll take a quick look tonight.
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Senior User
Joined: Jan 2004
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From: ATCO, NJ
I still have the problem of my battery not charging. If I jump it, it runs ok. It will not stall out but generally it will not be able to restart itself. I've rarely driven the truck for more than 10 minutes. I suspect that something is not connected correctly. I also notice that my headlights are very dim and the vehicle (at times) is obviously not getting sufficient power to the coil. I'm going to go over the system when the rain stops and compare the wiring to the manual I have. The drawings are terrible in both haynes and chilton and my wires are pretty cruddy. I'll have to give them a good washing and make a diagram of what I have.
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Senior User
Joined: Jan 2004
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From: ATCO, NJ
Got it!
Well I had to pull the entire wiring harness for the charging circuit but I figured out what was the problem. The wire for the battery feed etc. was in quite the state of disrepair (or bad repair as it were.) I reworked the harness and she runs like a champ now! The headlights are bright again, too which is nice. I used to get a lot of flashing on the road at night (and not the kind you WANT to see.) Thanks, folks!
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