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08-14-2016, 04:57 PM
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#1
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Senior Member
Join Date: Apr 2012
Location: Louisville, KY
Posts: 1,395
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Bouncy ride with Koni shocks
I recently had Koni shocks installed on my rig (2012 Fleetwood Expedition) and seem to notice that sometimes the road surface is just right to set up a rather extreme up-and-down "bounce" to the ride that is significant enough to make me slow down (some sort of resonance). Has anyone else experienced this, and if so is there a way to address it (other than slowing down that is)??
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08-14-2016, 05:37 PM
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#2
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Senior Member
National RV Owners Club Freightliner Owners Club
Join Date: Jul 2015
Location: Conch Republic
Posts: 2,490
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Are those shocks adjustable? My rear Konies were. If so you could have them adjusted for more damping.
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33' 2008 National Tropical on a Freightliner chassis.We tow a 2001 XJ (Cherokee) RVM#189
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08-14-2016, 05:47 PM
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#3
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Senior Member
Join Date: Feb 2013
Posts: 120
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Koni Shocks
Had that problem on the rear of my 1999 F53 34 foot motorhome. Put the bilsteins back and problem gone. While the konis were on I had drive shaft balanced, and carrier bearings replaced. Returned them to koni. Now have removed konis from the front.
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08-14-2016, 07:22 PM
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#4
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Senior Member
Join Date: Dec 2014
Posts: 102
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Had new Koni's installed in June and have driven about 6K miles since then. No problems with bouncing, etc., and a good improvement in ride. I saw the shocks before they were installed and if there is an adjustment, it well disguised.
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Mike and Jan
'03 Monaco Camelot
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08-14-2016, 07:32 PM
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#5
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by MikeandJan
Had new Koni's installed in June and have driven about 6K miles since then. No problems with bouncing, etc., and a good improvement in ride. I saw the shocks before they were installed and if there is an adjustment, it well disguised.
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On some Koni shocks you collapse the shock and rotate the central shaft. Usually have 5 settings.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-14-2016, 07:43 PM
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#6
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Senior Member
Join Date: Apr 2012
Location: Louisville, KY
Posts: 1,395
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Quote:
Originally Posted by Mr_D
On some Koni shocks you collapse the shock and rotate the central shaft. Usually have 5 settings.
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Are they labeled somehow to identify them as adjustable?
I am surprised at this ... People have spoken so highly about the konis...
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- 2017 Newmar London Aire -
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08-14-2016, 07:57 PM
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#7
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Senior Member
Join Date: Apr 2010
Posts: 1,295
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Do you have a spartan or freightliner chassis. Koni goes with freightliner not spartan.
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Pcurt
2007 Fleetwood Bounder 38V
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08-14-2016, 10:10 PM
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#8
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Senior Member
Join Date: Apr 2012
Location: Louisville, KY
Posts: 1,395
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Quote:
Originally Posted by pcurt23
Do you have a spartan or freightliner chassis. Koni goes with freightliner not spartan.
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Freightliner
It does not happen all the time .. Just when the bumps in the road are repeating and a certain distance apart ..
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- 2017 Newmar London Aire -
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08-14-2016, 11:04 PM
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#9
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Senior Member
Join Date: Apr 2014
Location: B.C.
Posts: 302
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I had Koni's installed last year on our 2000 American Eagle and it was a Huge improvement in ride performance !
That said what you are talking about can happen and can happen with any type or brand of shock on occasion and yes changing speed is about the only way to get out of the rhythm!!! Nothing to do with Koni in particular that said as with any shock setting them up stiffer if you can (mine are not adjustable) may help.
Regards,
Ed
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08-14-2016, 11:30 PM
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#10
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 522
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Quote:
Originally Posted by MN_Traveler
I recently had Koni shocks installed on my rig (2012 Fleetwood Expedition) and seem to notice that sometimes the road surface is just right to set up a rather extreme up-and-down "bounce" to the ride that is significant enough to make me slow down (some sort of resonance). Has anyone else experienced this, and if so is there a way to address it (other than slowing down that is)??
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Traveler: Did you notice this type of bounce with the shocks that you took off?
I agree with RVingDutchman, once you get a bounce rhythm, its off the gas.
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1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-15-2016, 05:49 AM
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#11
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Senior Member
Vintage RV Owners Club Ford Super Duty Owner
Join Date: Jan 2015
Posts: 182
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I run Koni shocks on all axels except my tag axel. They don't support a Koni installation. On the tag axel I run Bilstein shocks. Between the Koni shocks and running my Toyo tires at 80psi (Maximum pressure with 16" rims) I have no handling problems.
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'97 Pace Arrow Vision 36 with Tag Axel, Ford 460 with Banks Power Pack. 2000 Jeep Wrangler Toad, one miniature schnauzer that rules the roost and a wife that enjoys traveling. Retired FTCS (SS) USN and loving it. FMCA#461483
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08-15-2016, 06:25 AM
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#12
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Senior Member
Join Date: Apr 2012
Location: Louisville, KY
Posts: 1,395
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Quote:
Originally Posted by leesdx1
Traveler: Did you notice this type of bounce with the shocks that you took off?
I agree with RVingDutchman, once you get a bounce rhythm, its off the gas.
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I did not notice this with the previous shocks (not sure of brand ... They were the stock shocks on the new rig). Sounds like in general this can happen, so I'll stick with the koni's (a little bit of improvement, but not as much as I might have guessed ... Though I have been lucky in that this unit has always handled very well ... Never even felt trucks coming up beside me. 😀
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- 2017 Newmar London Aire -
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08-15-2016, 11:22 PM
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#13
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Senior Member
National RV Owners Club Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 3,781
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Quote:
Originally Posted by MN_Traveler
I recently had Koni shocks installed on my rig (2012 Fleetwood Expedition) and seem to notice that sometimes the road surface is just right to set up a rather extreme up-and-down "bounce" to the ride that is significant enough to make me slow down (some sort of resonance). Has anyone else experienced this, and if so is there a way to address it (other than slowing down that is)??
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Check with the shop that installed the shocks if they are adjustable. If you have FSD's they are not adjustable. If the Koni's you have are adjustable, here is the procedure. You can download it in PDF also.
http://www.konirv.com/adjustment.cfm
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1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000,1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
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08-16-2016, 09:57 PM
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#14
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by chboone
Check with the shop that installed the shocks if they are adjustable. If you have FSD's they are not adjustable. If the Koni's you have are adjustable, here is the procedure. You can download it in PDF also.
http://www.konirv.com/adjustment.cfm
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The FSD's are gold, the adjustables are usually red although the new EVO 99 series I just got are red and are not adjustable, they are like FSD's inside but made for our 20,000# front axle.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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