2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

New PA Alternator

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Old Nov 21, 2014 | 06:37 PM
  #11  
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Alternator & power wire kit go in in the morning. Fingers crossed.
Old Nov 21, 2014 | 08:53 PM
  #12  
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Originally Posted by edwin108
It can't hurt to use both wires, you'll effectively have one very thick gauge wire.
I'm not so sure about that. If I understand correctly, the wires would be together forming a parallel circuit. Current will be divided between the two wires, but the amount in each lead will vary based on the resistance of the lead and its associated connectors. If you do end up running both leads, make sure all the connections are very clean.
Old Nov 21, 2014 | 10:35 PM
  #13  
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I think I'm just going to use the new PA wire, not both. If something doesn't work, I'll do a re-think.
Old Nov 22, 2014 | 09:27 AM
  #14  
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Originally Posted by Goldenpony
I think I'm just going to use the new PA wire, not both. If something doesn't work, I'll do a re-think.
That's what I did. Zero issues.
Old Nov 22, 2014 | 01:21 PM
  #15  
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Installed PA Alternator and Power Wire Kit. Pretty easy install. Cleaned TB at the same time. Everything seems to be working fine. No strange noises. Now, to see if the CEL stays dark.
Thanks for all the advice.
Old Nov 28, 2014 | 07:23 PM
  #16  
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Well, it's been a week now with no CEL-I am convinced now it was definitely the alternator that was causing the P0340 code. No problems running the std. type pulley instead of the clutch. Pretty happy with the way it all worked out. The Power Wire kit was an easy install too.
Old Nov 28, 2014 | 08:22 PM
  #17  
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Originally Posted by roegs
I'm not so sure about that.
well, then, be sure about that.
Old Nov 29, 2014 | 07:19 AM
  #18  
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Originally Posted by edwin108
The upgraded power wire should connect from the B+ terminal on the alternator to the battery. The OEM wire should be the thick cable on top of the passenger side fuel rail:
What air intake system is this?
Old Nov 29, 2014 | 09:31 AM
  #19  
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Western Motor Sports. http://www.wmsracing.com/
Old Nov 29, 2014 | 09:50 AM
  #20  
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I called both PA and American Muscle. PA said they recommend using both wires, American Muscle said to just use the performance wire. Great. That really clears things up.
AM is correct.
While it's unlikely that running two parallel wires, grounded at the same point on one end and connected to the same positive point on the other, will cause a problem, it's considered a huge error in design. By using two wires you form an antenna where the resonance frequency is unknown. In an entirely DC environment this is usually not a problem, but with all of the RF and pulsed currents in a new car, it is possible that you will create an intermittent problem that will be nearly impossible to track down.



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