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My Ezgo electric golf cart will not run

Customer Question
I have an Ezgo electric...

I have an Ezgo electric golf cart that will not run. What could the problem be? I Just replaced the batteries

Make: ez go golf cart

Already Tried: new batteries, tested motor, replace solenoid

Submitted: 8 years ago.Category: Small Engine
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Answered in 10 minutes by:
7/3/2010
Technician: Curtis B., Technician replied 8 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,854
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Does the solenoid close when you depress the foot pedal? The system gets the power from the key switch, to the f/r switch to the foot switch to the solenoid. The solenoid has to power up the controller. Do you know what year model you have, the numbers are just below the right hand glove box area. the will be a letter followed by three numbers. the last two number should be the year model. E499 would be a 1999 model example. I will include a web site address so you can look at the wiring diagrams or pull up a complete service manual. Let me know if I can help. http://mrcarts.com/cat_ezgo_technical_info.cfm

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Customer reply replied 8 years ago

Not sure what you mean but the solenoid closing. There is no clicking sounds coming from it and it seems as though there is no power at all. It is a 1996 model. Is there anything else that could possibly have to be replaced.

Technician: Curtis B., Technician replied 8 years ago
The micro switch at the foot pedal make the solenoid close. If you want to see if unit will run, put a jumper across the solenoid and see if it will run. Then chase down the loss of power, probably the micro switch for the foot pedal, located under the drivers mat in a metal box.
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Customer reply replied 8 years ago

Can you tell me how to put the jumper across from the solenoid?

Technician: Curtis B., Technician replied 8 years ago

You want to tie the two big terminals together, or take a jumper cable and go from the last battery that the cable goes to the solenoid is on and put the other end of the cable on the terminal that the other solenoid cable goes to. That will bypass the solenoid. You will have power at the controller and the unit should drive. You are dealing with 36 volts, so be careful where you touch the cable. Let me know.

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Customer reply replied 8 years ago

So basically you put the jumper cable, one on the negative terminal and one on the positive terminal?

Technician: Curtis B., Technician replied 8 years ago

No, you want only use one cable. Just hook from one big terminal of the solenoid to the other big terminal. You put positive and negative together and it will be the 4th of July.

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Customer reply replied 8 years ago

Ok we just tried that and still no power at all. Any other things we can try?

Technician: Curtis B., Technician replied 8 years ago
Do you have a voltmeter to check things?
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Customer reply replied 8 years ago

Yes we do

Technician: Curtis B., Technician replied 8 years ago
Start at the carts battery charger connection, do you have the 36 volts there.?? If so locate the two cables, positive and negative that come off the battery pack that go to the control area. put one lead on the negative battery post and the other lead to the solenoid post and see if you have the 36 volts. Then press the foot pedal down and see if both terminals on the solenoid show the 36 volts. If so the solenoid is working and the problem has to be in the controller or the motor. Let me know how this turns out. Thanks.
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Customer reply replied 8 years ago

The battery charger says 37.8 and the solenoid battery side says 37.8 and the other side says 33.7 and doesn't change when foot pedal is pushed.

Technician: Curtis B., Technician replied 8 years ago
The problem is in the controller or in the cables to the motor, or the motor itself. Was the cart working before the batteries were put in, or were the batteries put in hoping it would solve the problem.??
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Customer reply replied 8 years ago

My dad owned the cart and it was working, then left the batteries out for the winter and they all exploded and then instead of putting in 6 - 6 volt batteries, he put in 3 - 12 volt batteries which of course didn't work. We now how brand new 6 volts and are getting absolutely no power. We have hooked up the batteries directly to the motor and the motor worked, so not sure what else it could be.

Technician: Curtis B., Technician replied 8 years ago
Go to the Mr carts web site and methodically go through the procedure to check the controller. That is the only way to get to the source. Sorry.
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Customer reply replied 8 years ago

Ok so that should rule out the f/r switch and any other fuses or wiring or ignition problems, we should just focus on the controller?

Technician: Curtis B., Technician replied 8 years ago
let me know how it comes out.
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E-Z-GO golf cart troubleshooting

 
When an E-Z-GO golf cart isn’t working, many people are quick to assume that the motor is the problem. Golf carts are more complex than they seem, though, so you'll need to know what to look for to narrow down the problem. E-Z-GO golf cart troubleshooting will require you to be able to recognize some of the different parts, so you may need your owner’s manual.

 

Checking the batteries

 
The batteries that charge the golf cart can become depleted if they're left for too long, even if the golf carts wasn’t in use. They also lose some of their ability to hold charge with age.
 
To check the batteries:
  1. Check water and electrolyte levels.
  2. Add water to cover the conductive plates.
  3. Check the battery terminals for corrosion. This can be removed with baking soda solution and a brush.
  4. Watch for broken or frayed wires.
  5. Use a multimeter to make sure the batteries have sufficient charge.
 
To get the maximum life out of your batteries, make sure they are fully recharged after each use.
 

Listening for the solenoid

 
You should hear a clicking sound when you turn the key. This is the solenoid on the starter. If you don’t hear the solenoid, it could be an indication that you need to replace a bad starter. 
 

Checking the charger

 
Make sure that the outlet the cart has been plugged into is carrying a charge. The problem could be as simple as a thrown breaker! Check the charger on the cart for corrosion or frayed wires. The diodes inside the charger can sometimes fail in a power surge.
 

Inspecting the potentiometer

 
Check the potentiometer to be sure that the wires are securely connected and that the unit isn’t visibly damaged.
 

Resetting the motor

 
If the batteries are charged and everything else seems to be in working order, it's time to check the motor. The motor can be overwhelmed by excessive weight, steep climbs or poor traction, and can burn out.
 
To reset the motor:
  1. Remove the motor cover
  2. Press the reset button
  3. Connect the E-Z-GO golf cart to the charger
  4. Try to start the cart
  5. If the motor won’t spin, it may be burned out.
 
If this doesn’t work, check the motor unit for:
  • Damaged bearings
  • Damaged field coils
  • Worn brushes
  • Damage to the armature or motor housing
 
Depending on the issue, this can mean anything from a relatively simple repair to a full motor replacement.
 
If you require additional assistance with E-Z-GO golf cart troubleshooting, you can contact E-Z-GO directly.
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Curtis B.
Curtis B.
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Category: Small Engine
Satisfied Customers: 31,854
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Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

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