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Motor is not running, automatic transmission, i was told it

Motor is not running JA: How...
Motor is not running
JA: How many miles are on the car? Is it an automatic or a manual transmission?
Customer: automatic transmission
JA: What is the model/year of your electric?
Customer: i was told it should the late nineties
JA: What year is your electric?
Customer: i dont really know
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Checked voltage and motor 39 volts
JA: Anything else you want the mechanic to know before I connect you?
Customer: Nothing
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Customer reply replied 1 year ago
What next
Customer reply replied 1 year ago
I bought a new solenoid yesterday installed but nothing happened. Theres power but motor is not running
Customer reply replied 1 year ago
What do you think should be done next
Customer reply replied 1 year ago
Hello, somebody helping me?
Answered in 25 minutes by:
10/18/2016
Curtis B.
Curtis B., Other
Category: Electric Vehicles
Satisfied Customers: 29,467
Experience: Worked on fleet of various electric vehicles, golf carts, scissor lifts and electric booms.
Verified

Thanks for giving me the opportunity to work with you! I will do my best to help.

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This is golf cart? Ezgo or Club Car, ?? 36 volt system? Does the charger come on when attached to the cart?

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I see question is still open?

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Customer reply replied 1 year ago
Ez go. 36 volts. Charger comes on. I tested the motor. Did a continuity test from s1 to a1 and there is continutiy, which i have learned there should not be. I also tested the speed control. Put tester negative to battery negative and tested m on the speed controller with the accelerator and got 0 voltage while pressing the accelerator
Customer reply replied 1 year ago
Bought a new solenoid and replaced that already, but none of the resister or diodes was changes
Customer reply replied 1 year ago
Did an ohm test on the resistor and came out with the right ohm reading 250 ohms

Year model? This has the mechanical speed control with contacts, and a three wire resistor pack? And you say motor checked bad?

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Like the one above? If you jump the solenoid to close it, do you get any drive?

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Customer reply replied 1 year ago
Motor checked bad, but i am not sure... would the speed control have anything to do with it. I took the motor out and did a continutiy test with no wires attached and there was no continuity...

No, if motor has no continuity between the s1-s2 motor is bad , speed control is not going to change that!

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Customer reply replied 1 year ago
The layout is not exactly like that. The charger port is not like that either. The battery is a1, s1, a2, s2
Customer reply replied 1 year ago
No continuity between a1, s1.

motor S or F is the field coils, the A terminals are the armature. You have to have continuity on the field coils.

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Customer reply replied 1 year ago
No continuity between a1 and s1
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Customer reply replied 1 year ago
There was continuity between a1, a2 and between s1 and s2. How would i test the motor alone? What do i do to a1 and s1 and a,
2 and s2 to simply put power to it to test? Shouldn't the solenoid click? Wouldn't there be volage on the speed control m even if the motor was not working?

Use the link above, to Mr carts, scroll down the opening page, till you get into the trouble shooting, to find the drive motor test, and check motor.

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Customer reply replied 1 year ago
Ok, thanks

Thank you!

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Customer reply replied 1 year ago
Thanks again for the info!

OK. Be sure you have battery voltage to the keyswitch from the back side of th charger connection, as this is where it all starts!

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Customer reply replied 1 year ago
Ok, i went through 2 or 3 lines and got to the solenoid testing. Jumped BL + with solenoid small post with red wire and solenoid clicked for the first time since it did not. Stepped on the pedal and it works... but what does that mean? What do i need to fix?
Customer reply replied 1 year ago
That means there is something wrong with the controller, right?

?? Pedal will now click the solenoid? And you still have no drive? If the solenoid is jumped, will cart move? Just because solenoid clicks, is it making the cable connection?

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Customer reply replied 1 year ago
pedal is not clicking the solenoid. the jump is clicking the solenoid. after the jump clicks, then the cart can move forward or back without any problem

SO we need to know if the keyswitch has battery voltage, and if it is going to the switch wire on the solenoid. If the battery voltage is going to the solenoid, and it does not click, the solenoid is bad.

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Customer reply replied 1 year ago
Ok, trying to figure out which wires are where

OK>

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This is the ITS switch and micro switch, that close the solenoid, Do you have voltage to the micro switch terminals when pedal is pressed? If you do, keyswitch has voltage. If no voltage, keyswitch is what has to power this micro switch.

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Customer reply replied 1 year ago
There is voltage.

OK. is the voltage going to the solenoids small terminal when pedal is pressed?

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put black lead on the battery negative post and use the red to probe at solenoid.

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Customer reply replied 1 year ago
No voltage

OK, trace from the solenoid back to the micro switch, using wire color, and see where voltage is lost. Bad wire or connection.

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Customer reply replied 1 year ago
Is it the speed controller at all or was that bypassed already?
Customer reply replied 1 year ago
Tested all wires i see and they all have connectivity

You said cart runs if you bypass the solenoid. The solenoid has to close ,to power the controller. Problem is between the micro switch and the solenoid.

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Customer reply replied 1 year ago
Not exactly that the cart runs if the solenoid is bypassed. It is that if the solenoid get gets jumped... maybe the way i described it was confusing... that if i put a jumper from battery positive to the solenoid and then the solenoid activates...
Customer reply replied 1 year ago
I guess, essentially, i bypassed the speed controller, because i bypassed the wires going into the speed controller and out to the solenoid

Solenoid has to close to energize the controller. The positive battery pack side goes direct tot he solenoid. Then when solenoid closes, it completes the circuit. We have to get solenoid to close.

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Customer reply replied 1 year ago
Oh

Take a jumper wire from the micro switch, to the solenoids small terminal , to see if it closes.

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Customer reply replied 1 year ago
Ok, i understand now what i am looking for a little better... let me do that test again

OK>

Curtis B.
Curtis B., Other
Category: Electric Vehicles
Satisfied Customers: 29,467
Experience: Worked on fleet of various electric vehicles, golf carts, scissor lifts and electric booms.
Verified
Curtis B. and 87 other Electric Vehicles Specialists are ready to help you
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Customer reply replied 1 year ago
OMG, it was the key! We never had a key to this cart so it was not a thought, but after i understand the flow of electricity... thanks for all the help! Someone visiting used the cart!!! Thanks so much for the help!!!

Good Job! Success!

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Customer reply replied 1 year ago
Thank you so much, i was quite skeptical at first, now i will recommend just ask to anyone.!

JUST ANSWER !!

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Customer reply replied 1 year ago
sorry, JUST ANSWER!!!!!

Thanks!

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Curtis B.
Curtis B.
Curtis B., Other
Category: Electric Vehicles
Satisfied Customers: 29,467
29,467 Satisfied Customers
Experience: Worked on fleet of various electric vehicles, golf carts, scissor lifts and electric booms.

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