2001 EZGO moves but shudders

Skinner · 10-28-2010, 11:47 AM

I hope somebody can start me in the right direction. My son was using my 2001 PDS, ran the batteries down and then towed it without switching to "TOW". I checked the system and the controller was dead. Replaced the controller and now the cart moves but shudders with no acceleration. Reverse or forward makes no difference. Any suggestions would be appreciated. Batteries are showing a charge of 37+. Thanks.

Skinner

scottyb · 10-28-2010, 01:17 PM

I don't know? Motor gone too?

Skinner · 10-28-2010, 04:05 PM

I'm not sure. The cart moves but it does not accelerate, just m-m-m-oves in little stutters, not smooth at all. The cart ran well but my son says one of the cables came loose and started to melt the terminal. He tightened the cable, then ran the cart down. He towed it about a half a mile and now we have this issue. Prior to installing the controller, it wouldn't move at all. I'm stuck!

roady89 · 10-28-2010, 04:06 PM

Is the motor getting hot?

scottyb · 10-28-2010, 04:08 PM

If you are lucky you might have a bad battery..... rig the voltmeter up to the pack and try to drive it..... what kind of low voltage readings do you get?

divot61 · 10-28-2010, 05:38 PM

try to charge each batt individually, then definitely check ALL connections, had one of my fleets do that and found a loose jumper wire that was welded to the post of a batt

rabbitreborn · 10-28-2010, 08:17 PM

Have you tried putting the cart in diagnostic mode?

Sounds like the motor burnt up though.

Skinner · 10-29-2010, 10:54 AM

Thanks for the input. I am charging the batteries today and will check the voltage this afternoon. The funny thing is if this was a gas cart, I'd think I had a bad plug. The cart wants to go but it seems as if the current is getting interupted and I'm not getting a continual feed. Are there "brushes" or "contacts" in the motor that might be dirty or just burned out?

Skinner · 10-30-2010, 02:45 PM

Just checked after charging and each battery shows 6.4 with a total run showing 37.8 +/-. Rabbitreborn, you asked about diagnostic mode, but I have never had to do that and am not sure what's involved. I will search this site and see what's involved and let you know what I find out.
Thanks again guys

scottyb · 10-30-2010, 04:45 PM

With the key off and the parking brake on. switch the F&R toggle from neutral to reverse 5 times. A couple of seconds after the 5th time you will hear a series of beeps the first series will identify which performance chip is in it. After that you will get diagnostic fault codes, If you have any, (like 3pause2 beeps) which correspond to the codes printed on your controller environmental cover. To exit diagnostic mode flip the run tow switch.

10-28-2010, 11:47 AM	#1
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10	2001 EZGO moves but shudders I hope somebody can start me in the right direction. My son was using my 2001 PDS, ran the batteries down and then towed it without switching to "TOW". I checked the system and the controller was dead. Replaced the controller and now the cart moves but shudders with no acceleration. Reverse or forward makes no difference. Any suggestions would be appreciated. Batteries are showing a charge of 37+. Thanks. Skinner
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10

10-28-2010, 01:17 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 2001 EZGO moves but shudders I don't know? Motor gone too?

10-28-2010, 04:05 PM	#3
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10	Re: 2001 EZGO moves but shudders I'm not sure. The cart moves but it does not accelerate, just m-m-m-oves in little stutters, not smooth at all. The cart ran well but my son says one of the cables came loose and started to melt the terminal. He tightened the cable, then ran the cart down. He towed it about a half a mile and now we have this issue. Prior to installing the controller, it wouldn't move at all. I'm stuck!
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10

10-28-2010, 04:06 PM	#4
roady89 nimda Join Date: Jun 2007 Posts: 13,022	Re: 2001 EZGO moves but shudders Is the motor getting hot?
roady89 nimda Join Date: Jun 2007 Posts: 13,022

10-28-2010, 04:08 PM	#5
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 2001 EZGO moves but shudders If you are lucky you might have a bad battery..... rig the voltmeter up to the pack and try to drive it..... what kind of low voltage readings do you get?

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10-28-2010, 05:38 PM	#6
divot61 Gone Wild Join Date: Apr 2009 Location: indiana Posts: 274	Re: 2001 EZGO moves but shudders try to charge each batt individually, then definitely check ALL connections, had one of my fleets do that and found a loose jumper wire that was welded to the post of a batt

10-28-2010, 08:17 PM	#7
rabbitreborn Gone Wild Join Date: Jun 2010 Location: Central Florida Posts: 2,757	Re: 2001 EZGO moves but shudders Have you tried putting the cart in diagnostic mode? Sounds like the motor burnt up though.

10-29-2010, 10:54 AM	#8
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10	Re: 2001 EZGO moves but shudders Thanks for the input. I am charging the batteries today and will check the voltage this afternoon. The funny thing is if this was a gas cart, I'd think I had a bad plug. The cart wants to go but it seems as if the current is getting interupted and I'm not getting a continual feed. Are there "brushes" or "contacts" in the motor that might be dirty or just burned out?
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10

10-30-2010, 02:45 PM	#9
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10	Re: 2001 EZGO moves but shudders Just checked after charging and each battery shows 6.4 with a total run showing 37.8 +/-. Rabbitreborn, you asked about diagnostic mode, but I have never had to do that and am not sure what's involved. I will search this site and see what's involved and let you know what I find out. Thanks again guys
Skinner Not Yet Wild Join Date: Oct 2010 Posts: 10

10-30-2010, 04:45 PM	#10
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 2001 EZGO moves but shudders With the key off and the parking brake on. switch the F&R toggle from neutral to reverse 5 times. A couple of seconds after the 5th time you will hear a series of beeps the first series will identify which performance chip is in it. After that you will get diagnostic fault codes, If you have any, (like 3pause2 beeps) which correspond to the codes printed on your controller environmental cover. To exit diagnostic mode flip the run tow switch.

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