- #FORD 3 WIRE ALTERNATOR WIRING DIAGRAM HOW TO#
- #FORD 3 WIRE ALTERNATOR WIRING DIAGRAM INSTALL#
- #FORD 3 WIRE ALTERNATOR WIRING DIAGRAM UPGRADE#
First, connect the electrical connector to the back ofthe new alternator.
#FORD 3 WIRE ALTERNATOR WIRING DIAGRAM INSTALL#
Now it’s time to install the new alternator. Be careful not to damage any of the surrounding components while doing this. Remove the bolts that hold it in place and carefully pull it out. Now it’s time to remove the old alternator. Then, disconnect the electrical connector from the back of the alternator. Next, remove the drive belt and pulley from the alternator.
#FORD 3 WIRE ALTERNATOR WIRING DIAGRAM HOW TO#
This guide will show you how to wire your alternator in just a few easy steps.įirst, disconnect the battery negative cable. If you’re having trouble wiring your Ford 3G alternator, you’ve come to the right place.
The kit comes with detailed instructions and color-coded wiring diagrams, so even if you’ve never done this before, you’ll be able to install it quickly and easily.ĭon’t waste your time searching for a Ford 3G alternator wiring diagram – just get the Painless Wiring kit and be done with it!Ĭredit: How Do You Wire a Ford 3G Alternator? The team at Painless Wiring has created a comprehensive wiring kit that includes everything you need to properly wire up your alternator. And even if you could find a accurate diagram, it would be nearly impossible to follow without any prior experience with electrical wiring.įortunately, there’s an easier way to wire up your 3G alternator. While there are a few diagrams available online, they’re often inaccurate or incomplete. If you’re looking for a Ford 3G alternator wiring diagram, you might be out of luck. This makes it easy to install and wire up, but it also means that if the regulator fails, you will need to replace the entire unit. This particular model has an external regulator, which means that the voltage regulator is not built into the alternator itself. The wiring diagram for this alternator is shown below.
#FORD 3 WIRE ALTERNATOR WIRING DIAGRAM UPGRADE#
The question is, could this new rebuilt alternator have an issue that would cause a voltage leak? Could it just be that the #1 connector needs to be hooked up to the ignition? (Doesn't make a lot of sense unless it sending voltage and then not sending voltage somehow turns off #2).The 3G alternator is a high output alternator that is often used as an upgrade on Ford vehicles.
When I return, I hope the battery still have a good charge (I left it on the low charger setting overnight), I will look for parasitic draw, and I will see if hooking up the #1 wire to the ignition key will have a difference. I travel for work and have been away from the truck for a few days.
Now, I've been doing my research and have come up with a number of things to test, which I will do soon. My gut feeling is it was leaking some battery juice to ground. It wasn't running long enough to get that hot. Some time later, I was working around the alternator and put my hand on it. After running it a while, I shut it off and got out my battery charger. That seems high, even for charging a low battery, especially considering it doesn't have feedback in the system (I haven't run #1 wire to the ignition key yet). I charged the battery and checked the alternator and yes it is putting out charge. Was showing 8 volts across the terminals. Now here's the issue: after hooking up the short wire from #2 to the alternator battery output connector, I came to the truck next day and battery was dead. Through my reading I discovered that there's a #1 and #2 connector and that #2 is an exciter wire that should be connected to the main output terminal with a short wire. I ran a wire from the output of the alternator to the battery. Though wiring isn't complete, I was looking to get the alternator hooked up. I have had the truck running for a while now with just basic wiring from battery to starter, ignition switch, HEI distributor, and start button (separate from ignition key). Anyway, I'm working on a 51 Chevy truck and currently doing wiring. Hello all, I hope someone can chime in and help as it looks like this is an old thread.
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