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Old 11-05-2017, 01:30 PM   #1
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Smile Steering control

I have been researching steering controls and read a lot of old posts about steeering controls and was wondering if we can revisit this topic. With being a newbie somewhat I notice some swaying going on while driving my Fleetwood discovery 39V with 31000 miles on it and was wondering if this would help as I've had the suspension checked out and no problems were found. Any input would be great. Thanks in advance.
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Old 11-05-2017, 02:58 PM   #2
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"Sway" is not a steering problem - just the body rolling on the suspension. Either your choice of the word "sway" is inappropriate, or you need a different solution. Heavier duty anti-roll bars can help with sway, or "motion control" valves for the air suspension.

If sway means constant steering correction, that is unusual on a DP. Start with proper tire pressure for the weight load plus a good front end alignment and see if the problem remains.

Also, keep your mind open to the driver being part of the problem. Newcomers to motorhomes tend to overcorrect with the wheel and get bogged down in lane keeping instead of focusing further down the highway. You can't drive straight in your lane if you are watching the mirros and sidelines for lane keeping purposes.
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Old 11-05-2017, 05:25 PM   #3
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Your Discovery is only one year newer than mine, and I can tell you I love the way mine drives. As Gary said, if it is swaying, that would be one set of possible problems. If it is steering issues another different set of possibilities. I'm going to assume you mean steering issues. If so, the very first thing I would look at is the tire pressures. On my coach I run 90 PSI in front and rears. Check the placard that is right behind the driver's seat on the wall, and it will give you the maximum tire PSI for your coach. Then you can weigh the coach and make adjustments downward from that pressure.
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Old 11-07-2017, 10:18 AM   #4
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When discussing directional stability, the word "alignment" is confusing, as applied to motorhomes. For me, it makes more sense to be more specific, as in toe-in, caster, and camber. IMO it's important to have a good understanding of caster and toe-in. AND, it's very important to know that in order to end up with sufficient castor authority, the vertical loading on the front end of the vehicle has to be close to the maximum weight that is specified for the vehicle.
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Old 11-08-2017, 09:48 AM   #5
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If your rigs front end suspension and alignment are where it should be according to the mfr, then you need to look at as Gary mentioned tire pressure. You also need to look at how you have the weight distributed...the stuff you packed into your rig. You may have too much weight to one side or forward. Its a good thing to get your rig weighed to determine if you're weight is evenly distributed over both axles and corners.

Sway is also controlled to some extent by on a DP the ride height adjustment...check your airbags for leaking...make sure the ride height adjusters are also not leaking and properly setup.

Lastly the road is also a culprit in ride...crowned roads, rutted roads and pitch of the pavement. Weather also influence sway...wind.
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Old 11-08-2017, 10:03 AM   #6
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Here is some information as to tire pressures and finding your way around irv2.
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