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Support for gas-powered and electric golf carts, sometimes referred to as golf cars or club cars after the Club Car Golf Cart brand.

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EZ-GO Cart 4M99 Loses power when driving, see my description

I have an E-Z-Go 1999 golf Cart and I am trying to track down an issue I am having. I made sure the batteries were fully charged. The cart takes off fine and it runs for about 60 feet then it loses power, does not sound like the solenoid kicks out. I back out of the pedal and wait for the solenoid to click then I tip back in and the solenoid clicks and the cart takes off again. I do this 2-3 times then the cart never gets back to the original speed and eventually it goes into a slow limp mode. I checked the main motor wires and the motor housing for overheating. I load tested each of the batteries and when I hook the up they show good but when I initiate the load test they move toward the weak range. I checked the voltage between the B- and the M- on the speed control module and it was at Battery voltage (36V). I then pushed the accelerator pedal and monitored the voltage at B- and M-, the more I pushed the lower the voltage dropped. I am wondering if there is a way to test the speed controller (Curtis PMC 73263 G01)? Does this sound like it could be a speed controller issue? Or something else? Any other trouble shooting ideas would be greatly appreciated.

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@mmcconn2 all this "when I initiate the load test they move toward the weak range. I checked the voltage between the B- and the M- on the speed control module and it was at Battery voltage (36V). I then pushed the accelerator pedal and monitored the voltage at B- and M-, the more I pushed the lower the voltage dropped." sounds like you are having bad batteries. You do want to start with those. The voltage may look good but your batteries seem to not supply the amperage needed for your cart

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Thank you. I was suspect of the batteries but none of them tested bad only weak.

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Did this solve the problem? Having sorda the same issue! I changed my solenoid and the thing under the floorboard for gas pedal.. And the speed control box!! Now mine will not pick up speed after charging.... Thanks for any help!

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Wondering if anyone found the answer here. Think I’m having the same problem and my cart uses the Curtis controller aswell. My batteries are in good shape

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New here. So what happen , problem fixed or what?

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@gkimbo did you ever get an answer?

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I'm having same issue. My Yamaha G16e Golf cart Has 6 brand new batteries 36v golf cart , also have brand new solenoid and brand new throttle sensor. Sometimes it drive fine with picking up speed sometimes it hesitates to pick up any speed at all. Anyone may know the issue?

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My old EZGO has similar problem I think. Always ran good til this year after each prior winter's idle. Batteries show full 36v. It runs fine after full charge for a few minutes, then acts like wheela are becoming locked, not wanting to move the cart. Shud I take it to the dump? Something need grease/oil?

maineclamdigger@gmail.com

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I have the same issue with my Yamaha. Any answer

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