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93 Mustang Charging Issue - Intermittent
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<blockquote data-quote="Mustang5L5" data-source="post: 16789389" data-attributes="member: 38517"><p>That's not a stock 2G 75A. That's a 3G 130A alt. 94-95 Mustang GT would be the application</p><p></p><p>While i would supect voltage regulator here, your wiring is also suspect. Was that how you received the car? The double 10G wires crimped into a single loop crimp should be cut back, taped up and tucked back into the harness and not used. They are undersized for 130A and a fire hazard if used.</p><p></p><p>Instead, you want to run a 4G wire with crimped ends from the power stud over to the starter solenoid. That will give you safe wiring.</p><p></p><p>Also, the blue spade style butt crimp fits over the stator plug on the regulator which essentally turns it on/off. If this connection is loose, you will have regulator issues, so you want to make sure the connection is clean of corrosion and tight.</p><p></p><p>If you want the correct connector for that plug, this is it</p><p>[MEDIA=amazon]B001RPWWZI[/MEDIA]</p><p></p><p>When undersized wiring heats up, it's resistance increases which contributes to voltage drop. Is that what's happening here? Hard to say, but regardless, running the 3G alt with the two #10 wires only is a potential fire hazard. I would correct the wiring, and then see if the voltage drop issue still exists. If it does, then i would replace the regulator.</p></blockquote><p></p>
[QUOTE="Mustang5L5, post: 16789389, member: 38517"] That's not a stock 2G 75A. That's a 3G 130A alt. 94-95 Mustang GT would be the application While i would supect voltage regulator here, your wiring is also suspect. Was that how you received the car? The double 10G wires crimped into a single loop crimp should be cut back, taped up and tucked back into the harness and not used. They are undersized for 130A and a fire hazard if used. Instead, you want to run a 4G wire with crimped ends from the power stud over to the starter solenoid. That will give you safe wiring. Also, the blue spade style butt crimp fits over the stator plug on the regulator which essentally turns it on/off. If this connection is loose, you will have regulator issues, so you want to make sure the connection is clean of corrosion and tight. If you want the correct connector for that plug, this is it [MEDIA=amazon]B001RPWWZI[/MEDIA] When undersized wiring heats up, it's resistance increases which contributes to voltage drop. Is that what's happening here? Hard to say, but regardless, running the 3G alt with the two #10 wires only is a potential fire hazard. I would correct the wiring, and then see if the voltage drop issue still exists. If it does, then i would replace the regulator. [/QUOTE]
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93 Mustang Charging Issue - Intermittent
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