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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 12-13-2020, 08:50 PM   #1
zchamp10
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Default EZGO Marathon High pitch noise

Hey guys,
Bought a 1990 EZGO marathon. New batteries and cables. When I press the gas, it makes a really high pitch noise, no movement. What's yall's thoughts??
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Old 12-13-2020, 09:16 PM   #2
cgtech
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Default Re: EZGO Marathon High pitch noise

My first check would be remove motor, disassemble it, and check motor brushes.
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Old 12-14-2020, 09:00 AM   #3
zchamp10
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Default Re: EZGO Marathon High pitch noise

So you think that's coming from motor? I assumed controller?
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Old 12-14-2020, 07:49 PM   #4
zchamp10
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Default Re: EZGO Marathon High pitch noise

I test the motor, it seems to work. Turns over with 12volts hooked to it...My next guess is controller. It makes a really high pitch noise when I press the pedal. Solenoid is new and clicks when I press the gas..Only 2 things I can think, is the controller or the speed control switch?
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