n 1996 Ford publicly recognized the fire hazard caused by the 2G alternator and released TSB 96214. This alternator design caused increased resistance and heat which could damage the wire harness and alternator. A small percentage of vehicles actually caught on fire! Fords 3G alternator was a giant leap in technology and quality. The 3G was internally regulated, used two internal cooling fans, sealed bearings, and had a superior battery stud. The 3G’s were more efficient, and produced more amperage at idle than any of it’s predecessors.
Does it fit 3.0 as well as 4.0? Alterations necessary?
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Dave Mac
94 XLT Long 251 K, and back in the workshop
92 XL Short 161 K still driving while I work on the other one
89 Tempo 157 K and still haven't worked this one out
Awesome alternator, that'd come in handy for a camper RV sorta aero. Run all your accessories and appliances no problem. Might even be able to rig up an AC/DC portable welder with one that big. That'd be a nice capability to be able to perform basic welding on your camper rig/van in the event something broke way out in the boondocks somewhere. Might get one like that, thanks for the link.
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1997 Aerostar Extended 3.0 2WD, 28K miles
I certainly hope these will work on 3.0 engines as that is the ONLY engine I am willing to shop for in an Aerostar, especially now that I've decided if I EVER own another Aerostar, that it will be an '89-91 model 5-speed shorty, charcoal gray on gray, XL model, with the low-back vinyl bucket seats.
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Alan Moore - Hill County, TX
2000 Dodge Durango 318 EFI/42RE, pewter on black
1990 Pontiac Trans Sport, red on gray
1976 Ford Gran Torino sedan 351M/FMX, white on blue
1976 Ford Gran Torino wagon 351M/FMX, parts wagon
Cliff, can you put a 3G in a stock 1989 3.0L? - I wouldn't mind a bit more power at idle, and esp with everything on - like a hot rainy night - lights, wipers, AC, and Stereo, etc... sitting at idle, you can see the gauge dip for sure... - Thanks
This alternator has the same mounts and wire connectors that would fit on my 3.0, but the only thing I would want to know is how much wider is this one from my stock one? If its the same width then it will fit just fine and line up perfectly with the pulleys.
But, sometimes, stock wiring, at least from the batt side, is only rated to draw a certain amount of power through it - if you actually buy one, and use it as it comes directly, let me know, as it would be an easy upgrade, if all you need to do is swap them directly, but I'm more concerned about a fire, or a least melting the charge wire(s) - Pulleys as well, but I bet those are the same...
sorry to bump this up but when i replaced my alternator i ran a new length of the hard copper 4g wiring from the alternator to the battery. going to go back in and replace it with some hi count 4g audio power wire and up my grounds as well... which is another good point. if people are upgrading their alternators, I think it is a GOOD idea to upgrade the grounds as well. in other words, perform a big three replacement.
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