Ammeter Bypass a Must?

Mopar General Discussions

  1. QuickDart360

    QuickDart360 Well-Known Member

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    Just have a question regarding ammeter bypass. I don't have a radio or high draw accessories that use alot of electricity. At one time my ammeter gauge petered out. The strip at the back burned and no more reading. No burned wires or bulkhead connectors, surprisingly!!! Also alternator is stock low amp. Question is is it absolutely needed to bypass or am I looking for trouble at not addressing this.
     
  2. xLURKxDOGx

    xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

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    It’s so painless in my opinion that there’s no real reason to not do it. Just another less potential problem to eliminate down the road.

    Jake
     
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    • rumblefish360

      rumblefish360 So close, yet so far away FABO Gold Member

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      There is no actual reason to do it. Some will post scary fire stories. And! While that is possible, so is winning lotto tonight.

      It is super simple to do this job. So, if you wish to do so..... your biggest issue is what gauge to get and where to put it.

      I wonder if they make one to replace the factory amp gauge.
       
    • 67Dart273

      67Dart273 FABO Gold Member FABO Gold Member

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      If you don't have a working ammeter I would do a bypass
       
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      • MoparLeo

        MoparLeo NRA PATRON LEVEL LIFE MEMBER FABO Gold Member

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      • 66fyssh

        66fyssh Don't Stop Believin' FABO Gold Member

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        I did the "fleet bypass" to eliminate high current from going through the bulkhead connector. The alternator wire feeds through a hole with a grommet beside the bulkhead connector.

        I figured it was a good compromise to keep a working amp guage and reduce the possibility of high resistance in the bulkhead.
         
      • QuickDart360

        QuickDart360 Well-Known Member

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        I forgot to mention my car is a 1975 dart sport. I don't know if this year is any different from other years as far as wire thickness to bulkhead and any other change based on year model alone? Hey 66 fyssh what is the fleet bypass? Now you have me intrigued!:rolleyes:
         
      • crackedback

        crackedback FABO Gold Member FABO Gold Member

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        It's good idea.
         
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        • KnuckleDuster

          KnuckleDuster Well-Known Member

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          You can reach up under the dash without removing anything and move one wire so both are on the same post. Takes two minutes. If the gauge is fried anyway, why not just do it?
           
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          • adriver

            adriver Blazing Apostle

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            1. If you have had a problem with the amp gauge bypass it. It is only there for you to see what's going on.
            2. it seem you know that even if you bypass the gauge by connecting the wires as has been suggested, you still are feeding through the bulkhead connector which is probably the bigger potential problem down the road.
            3. I've got a box of spare junk yard pull gauges for backup for my fleet, but I believe new ones are actually being reproduced now and would suggest if they are any good.
             
          • 67Dart273

            67Dart273 FABO Gold Member FABO Gold Member

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            You can find the "fleet wiring" in some of the manuals. This is a factory (or maybe dealer option) with the 60? or 65A optional alternator. "What they did" was to cut and tape one of the ammeter wires, then run a SEPARATE larger feed wire through a separate dedicated grommet in the firewall

            Go to MyMopar and download some factory manuals..........free

            MyMopar - Mopar Forums & Information - MyMopar Tools/Reference

            One place you can find example wiring of this is the 72 Plymouth manual, in the wiring diagrams they call it "65 Amp alternator--Satellite" on page 8-167

            New grommet and added wires at bottom of page

            65amp.jpg
             
            Last edited: Jun 10, 2018
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