Fifth wheel sway problems - Ford Powerstroke Diesel Forum
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Old 05-07-2013, 03:16 PM
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Fifth wheel sway problems

We have A new 2013 F350 with an Outback medium size fifth wheel. 1000 miles on the truck.
Just traded the same truck in but an 06 model..
The trailer is almost UNcontrolable from the swaying. It is so bad it's terrifying !
Stopped at Ford in Vegas and pointed out the unusual amount of brake dust on the passenger front wheel and told them about the problem. After several hours in the dealership they say they can't find anything.
Back at the RV park I pulled the wheels to look at the disc myself and found blue heat streaks on the passenger front side and no heat related marks on the drivers side.
I had ZERO problems with sway on the 06..any ideas ?
The sway control seems to be malfunctioning and only working one wheel to me ?
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Old 05-07-2013, 03:18 PM
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Was it windy? Was the trailer or truck swaying? Passing big trucks?
Maybe a spring broke on the trailer but doubt it. What kind of hitch?
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Old 05-07-2013, 03:25 PM
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It was very windy but nothing I haven't driven in before. And the truck seems to follow the grooves in the road also, Strongly ! And yes Big trucks would almost make it run off the road. Springs are fine on the trailer. The hitch was from Ford factory, It is A Reese. I special ordered the truck.
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Old 05-10-2013, 07:16 AM
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Reese is a good hitch. I have pulled 5th wheels for 14 yrs and always used a Reese.

Is this a short box truck?

When we bought out first 5th wheel yrs ago we had a SRW.. after about a year I bought a Dually.. from then on that's all I ever owned. For pulling a 5th wheel.. a Dually is the only way to go.

If you have a front brake not releasing (and it sounds like it) That would cause the front to pull one way, and of course the rear the other. If you have a 5th wheel on it, the sway is going to telegraph worse back there.
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Old 05-11-2013, 08:50 PM
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Did you check the trailers wheel bearings? Blue streaks on the rotors could indicate that they are putting pressure from not being aligned properly due to bearing slop.

Does the trailer sit level? If it is not level and it is a tandem axle the rear axle could be bearing more load and causeing it to wander. Trailers should always be a little bit lower in the front. I'm not saying that I adhere to that stricktly but it does make a trailer track better behind the tow vehicle.

Shackles are overlooked often and they wear out pretty quickly.

The brake selenoid could be stuck or sticking causing a trailer to want to veir and sway.

Just some things I have seen over the years towing. I tow a trailer 80% of the time.
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Old 05-12-2013, 01:46 PM
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Checked out all mechanics on trailer and everything is ok. Taking truck to A Texas dealer in A couple of days. And yes the truck is the short box. This is very strange
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