2011 With New Batteries But slow speed?

Martinomon10 · 01-13-2018, 09:50 PM

My 2011 Precedent was running great .....added water to 7 yr. old batteries and charged and then the cart was running at half the speed it was before .Figured the batteries were just old and finally bit the dust , so I bought new Trojan t185`s and put in. all the cables are correct and batteries fully charged. The cart still runs about half the speed as before the new batteries. Very noticeable drop in speed ....any helpful tips?.....I did put in a new Mcor about a year ago.....which fixed a surging condition at that time .....Thanks for any help ....

mrgolf · 01-13-2018, 10:20 PM

Bad speed sensor, heck it could be unhooked, it is on the end of your motor. If you can push your cart without beeping or trying to resist that's it.

Martinomon10 · 01-13-2018, 10:39 PM

first ...I made a mistake ....Trojan T875`s....and mrgolf...maybe your right !!!...went out and turned on key and put in neutral and rolled with no resistance and no beeping backward and forward....so maybe the speed sensor?.....did I do the roll test right ....with key on and in neutral? Thanks so much for the help!

Htownblue · 01-13-2018, 11:03 PM

Quote:

Originally Posted by Martinomon10

first ...I made a mistake ....Trojan T875`s....and mrgolf...maybe your right !!!...went out and turned on key and put in neutral and rolled with no resistance and no beeping backward and forward....so maybe the speed sensor?.....did I do the roll test right ....with key on and in neutral? Thanks so much for the help!

Cart needs to be in run not tow to do the test. Try the roll test in neutral, F and R just to be sure.

Martinomon10 · 01-13-2018, 11:10 PM

Seems like this must be my problem....thanks HTblue and mrgolf !!! I did the test in the run position and it failed , so looks like I will be ordering a speed sensor...........Thanks fellas!!

Martinomon10 · 01-14-2018, 01:02 PM

I pulled the speed sensor ...question : does the magnet have a noticeable magnetism to it? Mine has practically no magnetism ...maybe a 1-2 on the 10 scale....I`m guessing , this is my problem , and why does the speed sensor go bad ? something I did wrong or just time to crash and burn? Thanks again for the help ....David

mrgolf · 01-14-2018, 01:58 PM

The magnet is likely ok. Don't get a sensor off eBay they are 90% bad. Get one from David at http://www.revolutiongolfcars.com. He is a site sponsor and will stand behind what he sells you.

Martinomon10 · 01-14-2018, 02:44 PM

Thanks for the tip mrgolf on where to buy ....but if you think my magnet is good ...and it does`nt have and magnetism left to it what else is there to that unit to go bad really?...just looks like a plastic housing and 3 wires....

mrgolf · 01-14-2018, 03:41 PM

It is a transducer that reads the pulses on the magnet poles. That's how it counts the rpm the motor is turning. When the controller does not detect the pluses from the motor it goes into limp mode which is about 8 mph. This is to protect the motor from over reving.

Martinomon10 · 01-14-2018, 09:00 PM

Thanks mrgolf for the explanation and I hope to get it out of the limp mode soon ..you guys are great on this site ! Thanks ..........Davd

01-13-2018, 09:50 PM	#1
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	2011 With New Batteries But slow speed? My 2011 Precedent was running great .....added water to 7 yr. old batteries and charged and then the cart was running at half the speed it was before .Figured the batteries were just old and finally bit the dust , so I bought new Trojan t185`s and put in. all the cables are correct and batteries fully charged. The cart still runs about half the speed as before the new batteries. Very noticeable drop in speed ....any helpful tips?.....I did put in a new Mcor about a year ago.....which fixed a surging condition at that time .....Thanks for any help ....
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

01-13-2018, 10:20 PM	#2
mrgolf Old Sky Soldier Join Date: Dec 2011 Location: Kentucky Posts: 3,881	Re: 2011 With New Batteries But slow speed? Bad speed sensor, heck it could be unhooked, it is on the end of your motor. If you can push your cart without beeping or trying to resist that's it.

01-13-2018, 10:39 PM	#3
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	Re: 2011 With New Batteries But slow speed? first ...I made a mistake ....Trojan T875`s....and mrgolf...maybe your right !!!...went out and turned on key and put in neutral and rolled with no resistance and no beeping backward and forward....so maybe the speed sensor?.....did I do the roll test right ....with key on and in neutral? Thanks so much for the help!
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

01-13-2018, 11:10 PM	#5
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	Re: 2011 With New Batteries But slow speed? Seems like this must be my problem....thanks HTblue and mrgolf !!! I did the test in the run position and it failed , so looks like I will be ordering a speed sensor...........Thanks fellas!!
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

01-14-2018, 01:02 PM	#6
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	Re: 2011 With New Batteries But slow speed? I pulled the speed sensor ...question : does the magnet have a noticeable magnetism to it? Mine has practically no magnetism ...maybe a 1-2 on the 10 scale....I`m guessing , this is my problem , and why does the speed sensor go bad ? something I did wrong or just time to crash and burn? Thanks again for the help ....David
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

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01-14-2018, 01:58 PM	#7
mrgolf Old Sky Soldier Join Date: Dec 2011 Location: Kentucky Posts: 3,881	Re: 2011 With New Batteries But slow speed? The magnet is likely ok. Don't get a sensor off eBay they are 90% bad. Get one from David at http://www.revolutiongolfcars.com. He is a site sponsor and will stand behind what he sells you.

01-14-2018, 02:44 PM	#8
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	Re: 2011 With New Batteries But slow speed? Thanks for the tip mrgolf on where to buy ....but if you think my magnet is good ...and it does`nt have and magnetism left to it what else is there to that unit to go bad really?...just looks like a plastic housing and 3 wires....
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

01-14-2018, 03:41 PM	#9
mrgolf Old Sky Soldier Join Date: Dec 2011 Location: Kentucky Posts: 3,881	Re: 2011 With New Batteries But slow speed? It is a transducer that reads the pulses on the magnet poles. That's how it counts the rpm the motor is turning. When the controller does not detect the pluses from the motor it goes into limp mode which is about 8 mph. This is to protect the motor from over reving.

01-14-2018, 09:00 PM	#10
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10	Re: 2011 With New Batteries But slow speed? Thanks mrgolf for the explanation and I hope to get it out of the limp mode soon ..you guys are great on this site ! Thanks ..........Davd
Martinomon10 Not Yet Wild Join Date: Jan 2018 Posts: 10

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