Studdering / Jumpy Throttle

vw3858 · 06-09-2009, 05:15 AM

Hey guys - I have noticed I get a studdering / jumpy response from the cart at times; probably more like at a 3rd/peddal and sometimes at slower/less peddal. It more or less is jumpy in the acceleration/constant pedal. Does this sound familiar to anyone, or are there some suggestions to areas to begin to look for the source of this problem?

OLD MEC · 06-09-2009, 01:00 PM

Have you checked the condition of your batterys? many times one or more batterys are weak causing the problem you describe. Check closely #5 and #6 batterys ( Under drivers seat ) as they seem to go first? Check voltage and specific gravity on each cell of each battery and post results. Are these the original batterys by chance, check date stamp on battery post.
If batterys check out good it may be you MCOR unit going bad as it happens part way through pedal range.

vw3858 · 06-09-2009, 02:52 PM

Quote:

Originally Posted by OLD MEC

Have you checked the condition of your batterys? many times one or more batterys are weak causing the problem you describe. Check closely #5 and #6 batterys ( Under drivers seat ) as they seem to go first? Check voltage and specific gravity on each cell of each battery and post results. Are these the original batterys by chance, check date stamp on battery post.
If batterys check out good it may be you MCOR unit going bad as it happens part way through pedal range.

Thanks Old Mec - The batteries are only a week old and checked good; I'll keep an eye out to possibly replace the MCOR

vw3858 · 04-08-2010, 05:31 PM

Update to old issue.....My studdering/shuddering is a thing of the past; Took my cart to a local dealer this week and had a few loose ends tied up, one being having the MCOR replaced...Behold, smoothe acceleration as well as no more shuddering at points between crawl and WOT !!!!

.....BUT, now I have noticed a drop off in speed!!!! WTF....Could this be related to the new MCOR? Brakes (I had those adjusted, and no they dont seem to be dragging??? dont hear or 'feel' a drag.

Any weigh-ins would be appreciated

golfcarfixer · 04-08-2010, 09:08 PM

Good deal because I was gonna say the MCOR was bad,have seen this problem a few times. Glad you got it fixed.

OLD MEC · 04-09-2010, 03:18 PM

If ONLY the MCOR was replaced it could be a unit with less travel at linkage OR it could be the linkage is worn enough to cause slower speed?? Change over kits come with linkage but in most cases MCOR only is replaced. Check link for full travel. It only takes a shim of 10-20 thousands to recover full speed.

vw3858 · 04-10-2010, 03:43 AM

Quote:

Originally Posted by OLD MEC

If ONLY the MCOR was replaced it could be a unit with less travel at linkage OR it could be the linkage is worn enough to cause slower speed?? Change over kits come with linkage but in most cases MCOR only is replaced. Check link for full travel. It only takes a shim of 10-20 thousands to recover full speed.

Thanks Old Mec

06-09-2009, 05:15 AM	#1
vw3858 Finding Myself Join Date: Nov 2008 Location: Winston-Salem, NC Posts: 428	Studdering / Jumpy Throttle Hey guys - I have noticed I get a studdering / jumpy response from the cart at times; probably more like at a 3rd/peddal and sometimes at slower/less peddal. It more or less is jumpy in the acceleration/constant pedal. Does this sound familiar to anyone, or are there some suggestions to areas to begin to look for the source of this problem?

06-09-2009, 01:00 PM	#2
OLD MEC Gone Wild Join Date: Mar 2009 Location: South Texas Posts: 2,391	Re: Studdering / Jumpy Throttle Have you checked the condition of your batterys? many times one or more batterys are weak causing the problem you describe. Check closely #5 and #6 batterys ( Under drivers seat ) as they seem to go first? Check voltage and specific gravity on each cell of each battery and post results. Are these the original batterys by chance, check date stamp on battery post. If batterys check out good it may be you MCOR unit going bad as it happens part way through pedal range.

04-08-2010, 05:31 PM	#4
vw3858 Finding Myself Join Date: Nov 2008 Location: Winston-Salem, NC Posts: 428	Re: Studdering / Jumpy Throttle Update to old issue.....My studdering/shuddering is a thing of the past; Took my cart to a local dealer this week and had a few loose ends tied up, one being having the MCOR replaced...Behold, smoothe acceleration as well as no more shuddering at points between crawl and WOT !!!! .....BUT, now I have noticed a drop off in speed!!!! WTF....Could this be related to the new MCOR? Brakes (I had those adjusted, and no they dont seem to be dragging??? dont hear or 'feel' a drag. Any weigh-ins would be appreciated

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04-08-2010, 09:08 PM	#5
golfcarfixer Gone Wild Join Date: Sep 2009 Location: Forest City N.C. Posts: 2,660	Re: Studdering / Jumpy Throttle Good deal because I was gonna say the MCOR was bad,have seen this problem a few times. Glad you got it fixed.

04-09-2010, 03:18 PM	#6
OLD MEC Gone Wild Join Date: Mar 2009 Location: South Texas Posts: 2,391	Re: Studdering / Jumpy Throttle If ONLY the MCOR was replaced it could be a unit with less travel at linkage OR it could be the linkage is worn enough to cause slower speed?? Change over kits come with linkage but in most cases MCOR only is replaced. Check link for full travel. It only takes a shim of 10-20 thousands to recover full speed.