EZGO RXV vibration at low speeds and when slowing down

Frioman007 · 11-02-2017, 12:44 PM

I am looking for some advice on a 2013 EZGO RXV 48V electric golf cart with AC motor and electronic braking I just picked up. It has new batteries, a 3" spindle lift kit, Heavy duty rear leaf springs, and 14" factory EZGO wheels with 23" all terrain lifted tires. I am seeing what can only be described as heavy vibration & noise resonationg from the dash and windshield, and floor when cruising at low speeds and when slowing down from higher speeds. Once the cart gets up to speed it all goes away and is smooth. I also only notice this on the street and driving on the grass is fine. I have aligned the tires, and lowered the pressure in the tires but the issue remains. I am not sure if this is normal on lifted carts with off-road tires or should it be nice and smooth at all speeds? I would appreciate and advice.

SBIRD! · 11-02-2017, 01:28 PM

Try jacking up one end at a time just enough to clear the floor and set a spray can next to tire, spin by hand and look for wobble in tires. Also grab tires at 12 & 6 and 3 & 9 o'clock positions to check for play while it's up.
Might narrow it down to bad tire, bearing, ect. Flip it to tow mode(switch under the seat) and put key neutral to do the rear.

Frioman007 · 11-02-2017, 03:36 PM

Thanks, SBIRD I may try that. May I ask what the spray can would be for?

Its been frustrating to figure why it vibrates so bad at low speeds then disappears when it gets up to speed.

Scoots · 11-02-2017, 04:17 PM

That sounds normal with those tires. Those big knobs are almost solid rubber, they are the only thing touching the ground. Deflating them more will increase the vibrations as you are allowing for more of the tire to be on the surface. The only way to fix the vibrations is to get regular tires after those wear out

SBIRD! · 11-02-2017, 07:20 PM

A spray can is what I use but anything with a strait edge will work. Just some thing to set next to the tire about 1/8'' away to see if tire is bulging on the side. Keeping it close to floor will show if it's not round. Trick I learned for mounting old time duals and mobile home type wheels that don't self center. Good luck!

Frioman007 · 11-03-2017, 08:35 AM

So I did have the PSI lowered per other advice for a softer ride, but after inflating them to slightly over 20 PSI The vibration is much better. Thanks!

11-02-2017, 12:44 PM	#1
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3	EZGO RXV vibration at low speeds and when slowing down I am looking for some advice on a 2013 EZGO RXV 48V electric golf cart with AC motor and electronic braking I just picked up. It has new batteries, a 3" spindle lift kit, Heavy duty rear leaf springs, and 14" factory EZGO wheels with 23" all terrain lifted tires. I am seeing what can only be described as heavy vibration & noise resonationg from the dash and windshield, and floor when cruising at low speeds and when slowing down from higher speeds. Once the cart gets up to speed it all goes away and is smooth. I also only notice this on the street and driving on the grass is fine. I have aligned the tires, and lowered the pressure in the tires but the issue remains. I am not sure if this is normal on lifted carts with off-road tires or should it be nice and smooth at all speeds? I would appreciate and advice.
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3

11-02-2017, 01:28 PM	#2
SBIRD! Gone Wild Join Date: Aug 2016 Location: Lickin' County, Ohio Posts: 328	Re: EZGO RXV vibration at low speeds and when slowing down Try jacking up one end at a time just enough to clear the floor and set a spray can next to tire, spin by hand and look for wobble in tires. Also grab tires at 12 & 6 and 3 & 9 o'clock positions to check for play while it's up. Might narrow it down to bad tire, bearing, ect. Flip it to tow mode(switch under the seat) and put key neutral to do the rear.

11-02-2017, 03:36 PM	#3
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3	Re: EZGO RXV vibration at low speeds and when slowing down Thanks, SBIRD I may try that. May I ask what the spray can would be for? Its been frustrating to figure why it vibrates so bad at low speeds then disappears when it gets up to speed.
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3

11-02-2017, 04:17 PM	#4
Scoots Getting Wild Join Date: Mar 2017 Location: Windsor, Co Posts: 110	Re: EZGO RXV vibration at low speeds and when slowing down That sounds normal with those tires. Those big knobs are almost solid rubber, they are the only thing touching the ground. Deflating them more will increase the vibrations as you are allowing for more of the tire to be on the surface. The only way to fix the vibrations is to get regular tires after those wear out

11-02-2017, 07:20 PM	#5
SBIRD! Gone Wild Join Date: Aug 2016 Location: Lickin' County, Ohio Posts: 328	Re: EZGO RXV vibration at low speeds and when slowing down A spray can is what I use but anything with a strait edge will work. Just some thing to set next to the tire about 1/8'' away to see if tire is bulging on the side. Keeping it close to floor will show if it's not round. Trick I learned for mounting old time duals and mobile home type wheels that don't self center. Good luck!

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11-03-2017, 08:35 AM	#6
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3	Re: EZGO RXV vibration at low speeds and when slowing down So I did have the PSI lowered per other advice for a softer ride, but after inflating them to slightly over 20 PSI The vibration is much better. Thanks!
Frioman007 Not Yet Wild Join Date: Nov 2017 Posts: 3

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