RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 02-21-2015, 01:24 PM   #1
Junior Member
Join Date: Oct 2014
Posts: 18
Hitting the stops

I have a 2008 DS 4317 which I purchased about 5 months ago. The coach has 25000 miles. The problem I am having is that on the freeways here in the LA area I am hitting both my up and down stops due to the dips in the road. Sometimes it feels like the coach is going to come right off the frame. I have had the ride height check and it is correct. The tires are inflated to 100 lbs on the fronts, 85 lbs on the drive axle and 80 lbs on the tag axle. The coach is lightly loaded. There is no signs of leakage on the Bilsteins. So my only thought left is that the shocks are either worn out or just not strong enough for the coach. Has anyone else had this experience?


Tobys96 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 02-21-2015, 01:31 PM   #2
Community Moderator
"007"'s Avatar

Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,118
How about air bags all up??

98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
"007" is offline   Reply With Quote
Old 02-21-2015, 01:31 PM   #3
Administrator in Memoriam
Route 66's Avatar

Newmar Owners Club
Retired Fire Service RVer's
Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,908
Are you sure it's hitting the stops?

The Bilstein shocks on my '07 were so firm/harsh, Spartan replaced the front shocks with Koni's and the difference was amazing.

All of the jarring stopped and the ride was greatly improved.

Check with Spartan.
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP

Route 66 is offline   Reply With Quote
Old 02-21-2015, 01:36 PM   #4
Senior Member
GaryKD's Avatar
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 13,567
Hi Tobys96,
Route 66 has one of the first things you might consider. The other item is air bag restrictors (motion control units). Go to Spartan RV Chassis and read about them. I have both the Koni shocks and the motion control units on my coach. The coach drives and rides much more like a car. I would make both purchases again.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
GaryKD is offline   Reply With Quote
Old 02-21-2015, 02:39 PM   #5
Senior Member
Bill-MACV21's Avatar
Join Date: Nov 2014
Location: Sacramento, CA
Posts: 110
Try the Koni's up front. My OEM shocks were totally DOA after only 3 years on a MADP. The fronts were so bad that it seemed like the front tires were completely out of balance at certain speeds and road undulations.

Rears were also bad but with the tag masked the problem to a limited degree.
Bill-MACV21 is offline   Reply With Quote
Old 02-21-2015, 02:40 PM   #6
Senior Member
PDR John's Avatar
Join Date: May 2012
Posts: 3,645
I would say a shock problem as well. Or there is something more sever wrong.

I have a hard time seeing you coach going through 8-10" of suspension travel on any interstate. That would brake a lot of things in the house.

Who checked the ride height.
2013 DSDP 4347, all electric, 450 H.P. ISL
Air & hydraulic leveling
14 Jeep Grand Cherokee Overland toad
PDR John is offline   Reply With Quote
Old 02-21-2015, 04:06 PM   #7
Senior Member
wa8yxm's Avatar
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,023
Sounds like shocks and road surface both need replacement.

100 PSI in a lightly loaded coach may be a bit much.. Have the rig weighed (4 corner weights) and adjust tire pressure per results.

Load or travel first.

yes, I know the tire says MAXIMUM PRESSURE 100 PSI (90 if a Dual) but that is only half the sentence, Read the other half and you will understand.
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 02-21-2015, 04:22 PM   #8
Senior Member
andyh's Avatar
Newmar Owners Club
Join Date: Jul 2007
Location: Troy, MI
Posts: 629
I had Koni shocks installed by mistake on my 2008 DS with the Hendricson front axel. The Konis do not allow for enough travel and the coach behaved like yours. Once the Bilsteins were re-installed, the ride became normal

2015 DSDP 4369 with HWH Active Air, 2014 Jeep Grand Cherokee, Roadmaster tow bar, SMI AirForce One, Silverleaf VMSPc
andyh is offline   Reply With Quote
Old 06-27-2015, 10:36 AM   #9
Junior Member
Join Date: Oct 2014
Posts: 18
Front shocks on 2008 Dutch Star 4317

In February I posted about the front suspension was so soft that the shocks could not dampen the up/down travel as I was hitting both stops. At the time my coach had 25K miles. I now have 26.5K on the coach and still have the same problem. I had my local Spartan dealer check everything out again and this time they found a broken right front shock. The break was a clean flush break where the shaft is welded to the eyelet. They installed new Bilsteins on the front. On the drive home the ride is still very soft but now controllable, on one bump though, I came close to hitting the up stop. In my research I have found that neither Bilstein nor Koni make a shock for this chassis. The shocks that Hendrickson chose from Bilstein for the front axle are rated per the Bilstein RV application sheet at under 12000 lbs. GVWF., not for the 14,600 lb. front axles that are on the coach. I have spoken with the tech reps of Spartan, Newmar, Hendrickson and Bilstein. The reason I was given for there shock choice was that a soft ride was wanted. If there are any modifications that can be made so this coach doesn't ride like a 47 Buick I once owned that had no shocks, I would love to hear from you. Thanks, Toby

Tobys96 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Generator stops after 2 minutes Busman345 RV Systems & Appliances 11 06-21-2014 02:59 PM
Kids always hitting switches. Giant Jeff Class A Motorhome Discussions 6 04-29-2014 02:09 AM
Overnight stops - I-75 N - Ft. Myers to Cincinnati Deek Navigation, Routes & Roads 6 04-24-2014 01:40 PM
Generator stops running Socaltoolguy Fleetwood Owner's Forum 39 09-08-2013 03:14 AM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 04:33 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.