Trailer "jumps/hops/skids" When Braking Empty/Light Load
Discussion in 'Experienced Truckers' Advice' started by KWP_15, May 22, 2020.
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Snailexpress, Dale thompson and Midwest Trucker Thank this.
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daf105paccar Thanks this.
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Doesn't air ride have shocks??? Never seen one that didn't. Seems no shocks on air ride suspension would make for a brutally bouncy ride? Please correct me if I'm wrong!
snowwy Thanks this. -
I read about it a while back.black_dog106 and Snailexpress Thank this. -
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Put a 2x4, pipe or piece of dunnage up against the tire treads and try to lever them around. If you can shove an axle fore or aft look closely at the trail arm bushings.
Also, were all the drums definitely replaced with new? Or was a few changed, a few left old and all the slacks tightened up?
A warped old drum with tight adjustment will grab on the "high spot" so to speak and that torque is transmitted into raising the trailer. -
Get the abs checked, this almost always happens when I pull a trailer with a faulty ABS. It feels like the brakes pulse when you hit them. Especially dangerous when your loaded and need to stop quick and your brakes are only at half power.
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Thanks for everyone's suggestions! It turned out being the valve. The shop replaced valve again, and put oem in this time! I guess oem is the only way to go for air valves and abs equipment!
Dale thompson and aaronpeterbilt3787 Thank this.
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