Question about Ford Mustang

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I screwed up and did not label the wires when I took off the alternator on mt 1973 Mustang Mach 1 351C. I know where the orange wire goes, but the others(s) I'm clueless. Thanks

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  • yadayada
    yadayada May 11, 2010

    u have a mach one and no repair manual, sorry to old to have this info on web site.

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  • Master
  • 1,627 Answers

Red goes to the threade post,main output marked"batt".Orange and blue go to the post marked "feild",closest to the rear bearing.The white and black go to the post marked"sta" or stator.If there is a ground or all black wire it goes to one of the posts on the back of the alt that has no plastic insulater.Let me know if you need more help.

Posted on Nov 13, 2009

Testimonial: "When out and hook the alternatir right-up with the help. Thanks!"

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2 Answers

99 mustang battery not charging


First off, disconnecting athe battery while the engine is running is the quickest way to damage an alternator. Unlike the old DC generators, the alternator needs the battery in circuit to protect it against voltage runaway.

If the alternator has been bench-tested and seems to be functional, I would start by verifying the related vehicle circuits. Witch a DC voltmeter, start out by measuring the voltage at the alternator's output terminal, the heavy black/orange wire. It should be full battery voltage. If it is anything less than battery voltage, you must determine why. Some things to look at are the gray 12-gauge fusible links A & B, and the various splices and connections in the circuit (see diagram below).

Next, disconnect the voltage regultor harness plug from the alternator and check the voltage at the wiring harness regulator plug's "A" terminal connector - the yellow/white wire. It too should be full battery voltage. If it is anything less than full battery voltage, you must determine why. In this case, look at the 20-amp ALT fuse in the battery junction box, and at the various splices and connectors in that circuit.

Then, turn the key switch to its "RUN" position and measure the voltage
at the wiring harness regulator plug's "I" terminal connector - the light green/red wire. It should be somewhere between 8 and 12 volts. If there is no voltage present, check Fuse 5 (15 amps) in the main fuse panel and the various connections in that circuit.

The final test is to measure the voltage between the batterty positive terminal and the alternator housing or frame. If it is anything less than full battery voltage, check the alternator mounting.


7_19_2012_12_45_20_pm.jpg

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1 Answer

1973 Ford Mustang Coil Hook-up


The wire that comes from your distributor hooks up to the Negative side of the coil. The other wire should be a switched positive that hooks up to the Positive side of the coil. It should be hot only when the key is ON or Start.

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My stereo in my mustang was stolen and all the wires were cut i need to know what wires do what so i can install an aftermarket cd player


Okay it is very simple but if you don't know what your doing you should google this info "1999 ford mustang stereo wiring diagram" and something should pop up and you can usually print it out or download usually I print them out.

Good Luck!

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Need wiring diagram for a 2002 mustang Mach 1 radio. radio is hooked up and working but not the bottom door speakers . need to know what color the bottom door speakers are left and right and + & -


2002 Ford Mustang Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Purple/Light Blue
Radio Switched 12V+ Wire: Black/Pink
Radio Ground Wire: Black/Light Green, Black
Radio Illumination Dimmer Wire: Light Blue/Red
Radio Antenna Trigger Wire: Orange/Light Blue
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Wire (+): Orange/Light Green
Left Front Speaker Wire (-): Light Blue/White
Right Front Speaker Wire (+): White/Light Green
Right Front Speaker Wire (-): Green/Orange
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Wire (+): Gray/Light Blue
Left Rear Speaker Wire (-): Tan/Yellow
Right Rear Speaker Wire (+): Orange/Red
Right Rear Speaker Wire (-): Brown/Pink

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2 Answers

I puled off my old alternator and forgot to put


So, you have an integral regulator on your alternator.... so you have to connect the output of the regulator to your battery. You also have to connect between the regulator and the alternator. Hmmmmm how to describe....
using your descriptions of wires and prongs.....
Connect Wire Color to Prong

Yellow (w/wht dot) A+
White (w/blk tracer) STA
Black (w/orange tracer) Bat (alt output)
Ground wire Grd
Orange (w/Lt.Blue) F (field)
If battery was connected, the Black with orange tracer wire would have +12 Volts on it at all times

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1 Answer

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1 Answer

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did you change your battery or have a load test performed on it,it could be bad.
Have your mechanic change the wire harness for the alternator at the plug,they can burn out on the inside and look good on the outside,They are black 10 guage with orange stripe,and smaller guage plug wires.This part canbe purchased from the parts store, or dealer.

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2003 ford mustang speaker wire color code


Without knowing which system you have (460 or 1000) I can only suggest going to this web site for more info:

http://www.flemworld.com/Mach460/Mach.html

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