Question about 2002 Ford Escape

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What are the three wires on the back of the alternator for and what color does what o2 ford escape

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It depends on which system you have. In both cases, there is a black and yellow wire that goes to the fuse box and a 15 amp fuse. This wire provides stator current to run the alternator. There is also a yellow and white wire that goes to the fuse box that provides the charge current to the battery. Now depending on the system, there may be only one additional wire (light green/red) to the instrument panel battery light or there are 2 wires (brown/white and grey/orange) that go to the PCM. In the latter case, the PCM monitors the charge current and then turns on the instrument panel light when the charge current is insufficient. In the former case, the alternator has circuitry to determine when the batter light should turn on. OK? Is there a problem we can help you with?

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Posted on Oct 15, 2010

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How do I remove an altinator from a 2004 ford escape.


Hello there,
To replace the alternator in your car:
Open the Escape's hood, and examine the belt-routing diagram on the fan shroud. This will show you the location of the alternator and the serpentine belt tensioner.
Pull the serpentine belt tensioner away from the serpentine belt with the serpentine belt tool far enough to allow you to dislodge the belt from the alternator pulley with your other hand.
Unplug the wiring harness from the back of the alternator by hand. Remove the ground harness from the alternator with the socket set.
Unbolt the alternator from the alternator bracket with your socket set. Lift the old alternator out of the bracket by hand.
Compare the old alternator to the replacement alternator before installing the replacement. Make sure they're both physically identical before continuing. If not, take them both to the parts store to match up a proper replacement.
Set the replacement alternator in the alternator bracket by hand. Bolt it in with the socket set. Plug the wiring harness in by hand and bolt the ground harness to the back of the alternator with the socket set.
Install the serpentine belt on the replacement alternator in reverse of how you removed it from the old alternator.
All the best. Elect_Comp

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Own a 2005 Escape, have replaced the alternator three times and replaced the battery 4 times. They are now recommending replacing the computer. Any others with this problem?


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This past August 2009 after a long trip (i.e. 8 hours or so) my battery died. Brought to a auto parts place and they determined it was the baterry and the alternator. Since I was back on my home town I went to a good friend that is a mechanic and he fixed it for real.

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Try this and may work for you.

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