02 Mustang Alternator Issues

Redbuffalo95 · Feb 21, 2017

Alright I have a 02 mustang GT and it's on its 4th alternator that I've put in it in the past month, I don't know if it's an electrical issue or what's going on. The only help I have with this is when I took it to O'Reilly's all 4 had a faulty voltage regulator. I need assistance with this though because this is my daily driver and without it I have no way back and forth to work.

General karthief · Feb 21, 2017

Redbuffalo95 said:
Alright I have a 02 mustang GT and it's on its 4th alternator that I've put in it in the past month, I don't know if it's an electrical issue or what's going on. The only help I have with this is when I took it to O'Reilly's all 4 had a faulty voltage regulator. I need assistance with this though because this is my daily driver and without it I have no way back and forth to work.

Lets move this to the tech forums and the people there can give you some ideas to help you resolve this.
And welcome to stangnet.

Redbuffalo95 · Feb 21, 2017

karthief said:
Lets move this to the tech forums and the people there can give you some ideas to help you resolve this.
And welcome to stangnet.

How do I move this to a tech forum?

General karthief · Feb 21, 2017

squeak93 · Feb 21, 2017

Have you checked all the grounds and that you have 12v (14.4 ish actually) coming out of the post when it's charging.

Or you're just getting crap alternators (not as likely). Do you have the power wire hooked up to the power dist box under the hook? I ask because back in the day some idiot grounded out my power wire thinking it was a ground (It is black) and it fried my alt. That dummy was me and I was in a hurry lol. Oops. Expensive lesson learned.

Redbuffalo95 · Feb 21, 2017

Yea everything is hooked up correctly and to answer the first question no I'm not getting full voltage the alternator isnt pumping out any juice to the battery at all that's what's stumped me, is that it's the same issue Everytime and there's no freaking way all 4 alternators were faulty it's such a low possibility.

Redbuffalo95 · Feb 21, 2017

Yea everything is hooked up correctly and to answer the first question no I'm not getting full voltage the alternator isnt pumping out any juice to the battery at all that's what's stumped me, is that it's the same issue Everytime and there's no freaking way all 4 alternators were faulty it's such a low possibility.

Redbuffalo95 · Feb 21, 2017

Yea everything is hooked up correctly and to answer the first question no I'm not getting full voltage the alternator isnt pumping out any juice to the battery at all that's what's stumped me, is that it's the same issue Everytime and there's no freaking way all 4 alternators were faulty it's such a low possibility.

squeak93 · Feb 21, 2017

Check the harness for broken or bare wires. Something could be getting grounded out. Make sure the small connector (voltage reference) is making contact and isn't missing a pin out or something. (I forget what the hell its called but the grey two wire connector that's a pita to remove).

wmburns · Feb 21, 2017

My suggestion is to double check the left hand motor mount ground to frame strap is in place. If the motor grounding strap isn't in place or providing a good ground path (remember that the alternator is grounded via the motor) then the voltage regular will not have a correct ground reference.

Double check that the battery terminals are clean and tight. Especially the battery negative. Double check the grounds around the radiator core support.

Measure the DC voltage with the motor running from the alternator case to the battery negative. Post. Should be low.

02 Mustang Alternator Issues

Redbuffalo95

General karthief

wonder how much it would cost to ship you a pair

Redbuffalo95

General karthief

wonder how much it would cost to ship you a pair

squeak93

Redbuffalo95

Redbuffalo95

Redbuffalo95

squeak93

wmburns

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02 Mustang Alternator Issues

wonder how much it would cost to ship you a pair

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