Help intermittent go no go

[Lynncarr]

Hi all new first post, 2007 precident 6 month old batteries, 49 volts at voltmeter, new controller new Mcor push go pedal go 25-35 feet or end of driveway than stop. Push go pedal again and 5-8 more feet. Release and push again nothing, wait 15-20 min go another 25-35 feet tan nothing.

[Kashmir]

Speed sensor I should imagine

Unless the MCOR is a cheap Chinese knockoff....

[Kashmir]

Try this test....

http://www.buggiesgonewild.com/elect...nsor-test.html

[mrgolf]

Put cart on charger. Let it charge until charger turns off. 49 volts is pretty low. Also clean those battery connection and make sure they are snug.

[twilliams81]

I'm having the same issue on a 2002 48V DS IQ system cart. Cart is dead in the water at times with a solenoid click then after switching it to tow and pushing it a ways it seems to run for a little bit then shuts down again. Does this sound speed sensor related? Just trying to see which direction I should go; any help would be appreciated.

[mrgolf]

Try pressing go pedal about 20 time with key off. If that helps bad mcor. If not try flipping tow run switch a few times to see if that helps.

[Lynncarr]

Update, first would like to thank all for input, went and replaced speed sensor no change..did speed sensor test with old and new it will beep when cart is pushed,did a on board computer reset, but cart will not beep to let me know reset was good.. Batteries at 50.7 volts connections good.
Press go pedal to floor gart takes off strong than surges than stops, depress pedal again Sam but in a shorter time frame, cart is on jackstands, if depress pedal half way it will go all day, well I stopped it after 10 min. The original Mcor and new Mcor do same thing, so far new controller new Mcor new on board computer new speed sensor any thoughts? Thanks in advance!
Ps .took controller off had it tested again all good. 2007 club car precident.

[TahoeDawgZ71]

Both of your issues sound like a motor problem to me. Especially with the jerky start. Can you pull the motor off and take it apart and inspect the brushes? You'll probably find your problem (or smell it)

[Lynncarr]

Jerky start? It goes like crazy then surges than stops. Will a bad motor run half 3/4 speed but not full speed?
Thanks for quick comments

[TahoeDawgZ71]

Originally Posted by Lynncarr

Jerky start? It goes like crazy then surges than stops. Will a bad motor run half 3/4 speed but not full speed?
Thanks for quick comments

I was referring to the comment made by twilliams81. When he said he had to push it for a moment. Often, with a bad motor, it won't run until you push it a little and allow the brushes to make contact with a good spot on the armature. The cart will jerk and begin to run and will run fine until you stop again. And yes, a bad motor can definitely run a slow speed.