lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Club Car
Electric Club Car Electric DS, and Precedent golf cars



Post New Thread  Reply
Thread Tools Display Modes
Unread 04-06-2015, 10:58 AM   #1
Not Yet Wild
 
goyo5667's Avatar
 
Join Date: Apr 2015
Posts: 9
Angry MCOR Bad?

This is my first post and my first golf cart. I have a Club Car DS and 2010. When I push the pedal down, it clicks but will only move a little and then stop. It does this in both Rev/Forward. The batteries are brand new. My son can gently push the pedal and move the cart forward or reverse at slow speed. While moving, if you push the pedal too much, it just stops and you have to wait a few moments to get it going at the slow speed. This problem was only sporadic, but now has gotten worse to the point of all of the time now.
I have read a few post on bad MCOR, is this a problem part on DS model and is it an easy fix? How much is the part. Any help would be greatly appreciated.
I am a decent DIY but not great with electrical. Wires seem good and tight. Rev buzzer works fine

Last edited by goyo5667; 04-06-2015 at 11:26 AM.. Reason: adding more info
goyo5667 is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 04-06-2015, 12:16 PM   #2
Gone Wild
Club Car
 
Join Date: Jan 2014
Location: Okatie, SC
Posts: 309
Default Re: MCOR Bad?

Check the stickies . Could be speed sensor.
Hecky50 is offline   Reply With Quote
Unread 04-06-2015, 12:20 PM   #3
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 4,583
Default Re: MCOR Bad?

It could be a bad solenoid or an oxidized MCOR track.

Do the easiest test first:
Turn the key off and press the accelerator all the way down about 20 times, that will "scrape" off MCOR resistance track.


If That does not improve, remove the pre-charge resistor from the solenoid and try to run the cart.

If it does not move at all, there is a good change the solenoid contacts are burnt and the only current the controller was getting was passing thru the resistor.
Sergio is offline   Reply With Quote
Unread 04-06-2015, 03:26 PM   #4
Not Yet Wild
 
goyo5667's Avatar
 
Join Date: Apr 2015
Posts: 9
Default Re: MCOR Bad?

Pressing the pedal down 20 times did fix it. Now does this mean my problem is fixed or does this just pinpoint the problem to MCOR. I am scared that my son will stranded on his way to the neighborhood fishing hole. Should I clean something on the MCOR?
goyo5667 is offline   Reply With Quote
Unread 04-06-2015, 04:01 PM   #5
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 4,583
Default Re: MCOR Bad?

There is a stickie about opening an MCOR:

Inside An MCOR 01-04 DS

There is a good possibility it will do it again if it is being caused by water intrusion into the MCOR.

It is hard to get to the resistance track to clean it unless you un-solder the board from the connectors.

If You look at the stickies it will make sense.

I would just use the cart and if it starts to happen again, You can do the pedal thing again and order a replacement one at that time.
Sergio is offline   Reply With Quote
Unread 04-06-2015, 05:14 PM   #6
Gone Wild
 
eaglesdad1's Avatar
Club Car
 
Join Date: Aug 2010
Location: Delaware
Posts: 456
Default Re: MCOR Bad?

I just got done fixing mine, It was doing about the same as yours. Go then no go, jerky on take off.... I did the pedal trick and it worked for a while but came back so I ordered a new M-COR and it's like a new cart now
eaglesdad1 is offline   Reply With Quote
Unread 04-06-2015, 05:36 PM   #7
Cartsunlimited.net
 
scottyb's Avatar
E-Z-GO
 
Join Date: Dec 2007
Location: Southern California
Posts: 64,079
Default Re: MCOR Bad?

Quote:
Originally Posted by eaglesdad1 View Post
I just got done fixing mine, It was doing about the same as yours. Go then no go, jerky on take off.... I did the pedal trick and it worked for a while but came back so I ordered a new M-COR and it's like a new cart now
Same story with my wifey's Precedent These things just don't last a long time.
scottyb is offline   Reply With Quote
Unread 04-06-2015, 06:26 PM   #8
Gone Wild
 
eaglesdad1's Avatar
Club Car
 
Join Date: Aug 2010
Location: Delaware
Posts: 456
Default Re: MCOR Bad?

Quote:
Originally Posted by scottyb View Post
Same story with my wifey's Precedent These things just don't last a long time.
scottyb, I don't know why, We don't hop them up and drive them hard or anything like that !
eaglesdad1 is offline   Reply With Quote
Unread 04-06-2015, 06:43 PM   #9
Dawg Gone Wild
 
TahoeDawgZ71's Avatar
Club Car
 
Join Date: Mar 2010
Location: Golf Car Capital of The World... Augusta, Georgia
Posts: 8,015
Default Re: MCOR Bad?

Quote:
Originally Posted by goyo5667 View Post
Pressing the pedal down 20 times did fix it. Now does this mean my problem is fixed or does this just pinpoint the problem to MCOR. I am scared that my son will stranded on his way to the neighborhood fishing hole. Should I clean something on the MCOR?
You'll have to replace the MCOR with the MCOR to MCOR4 conversion kit. The MCOR you have on it now is no longer available. Once you do this, you should be good to go. It's not hard to install. Part number AM293101
TahoeDawgZ71 is offline   Reply With Quote
Unread 04-06-2015, 07:56 PM   #10
Cartsunlimited.net
 
scottyb's Avatar
E-Z-GO
 
Join Date: Dec 2007
Location: Southern California
Posts: 64,079
Default Re: MCOR Bad?

Quote:
Originally Posted by eaglesdad1 View Post
scottyb, I don't know why, We don't hop them up and drive them hard or anything like that !
Our wives or our carts!?
scottyb is offline   Reply With Quote
Reply

Tags
electrical, mcor, troubleshooting
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Club Car


Thread Tools
Display Modes


Similar Threads
Thread Forum
Need mcor/mcor help Golf Carts and Parts
Difference between MCOR 1 and MCOR 2 Electric Club Car
Mcor Electric Club Car
MCOR 2 to MCOR 3 Electric Club Car
is my mcor bad Electric Club Car


All times are GMT -5. The time now is 07:32 PM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.