Gauge Cluster issues

Electrical & Ignition

  1. Bruce Meyer

    Bruce Meyer Member

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    Just finished installing new gauge cluster, Speedo, Tic Toc Tac, Fuel, Temp and Oil on my 70 Roadrunner 383. Also installed new circuit board, light bulbs and low voltage limiter. All seemed to be fine at startup. Good oil pressure, fuel gauge reading well and temp gauge working fine. Until I started driving bout 5 miles.

    Then.... in perfect unison the fuel, temp and oil pressure gauges started moving to the left ever so slowly until they "zeroed" out. Then they started to reverse course, again very slowly then back to zero again. Always in complete unison.

    Any suggestions would be helpful. Ground issue? Low voltage limiter? Power issues at the gauge pin connector? Thanks.
     
  2. davek

    davek Well-Known Member

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    try and put the old limiter back in and see what happens. Just saying the OE limiter has been around for 50 plus years in many cars and still work.
     
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    • Bruce Meyer

      Bruce Meyer Member

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      So do you think this in "Unison" gauge movement is a voltage drop issue?
       
    • 33 IMP

      33 IMP Well-Known Member

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      I was gonna comment on George Custer......but then i read it again. Time to get my eyes checked again, i guess.
       
    • 65-440

      65-440 Well-Known Member

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      Well they all have separate grounds, only thing common is voltage from the limiter. I'd look there 1st
       
    • Beekeeper

      Beekeeper FBBO Gold Member FBBO Gold Member

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      Check the chassis ground to the cluster as well
       
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      • Bruce Meyer

        Bruce Meyer Member

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        I ran a wire connector directly from the voltage limiter ground to chassis ground to be safe when I initially installed it. I'll try putting the original limiter in.
         
      • Bruce Meyer

        Bruce Meyer Member

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        Well, after pulling the cluster out again, I replaced the new voltage limiter with the 50 year old one I saved. The old Bird loved the old one much better. No issues with the "moving" gauges. Just goes to show you older can be better.
         
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        • justjim

          justjim Well-Known Member

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          there is a video on how to check if voltage limiter works. google how to test chrysler voltage limiter very ez to do.
           
        • 65-440

          65-440 Well-Known Member

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          Yeah....12V in, 5V out
           
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