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Old 12-11-2013, 05:35 PM   #1
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brake short

Could this be the problem causing my brakes to pulsate?

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Old 12-26-2013, 10:55 AM   #2
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Probably not. Does it pulsate at slow speeds? Your boost may be set too high if it does.
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Old 12-26-2013, 10:58 AM   #3
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The only time it pulsated was on the freeway doing 65 mph coming down a big hill. Other than that one hub gets hot. Trying to diagnose the problem
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Old 12-26-2013, 11:07 AM   #4
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Is this a fifth wheel?
If so how level is it with the TV?
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Old 12-26-2013, 11:08 AM   #5
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No. Its a tow behind stealth toy hauler. Its level to the hitch

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Old 12-26-2013, 05:53 PM   #6
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If only one hub gets hot, the first thing is check the adjustment of the brake pads. Second is to check the ground wires. I just fixed a weak ground on my trailer which is a very common problem as the ground connections corrode, just like on the top of a battery. Third, fix the wire in the picture. That will eliminate any concerns. I always solder trailer wire connections. If it still pulsates, pull the hubs. There might be a mechanical problem. If that's easy for you to do, I'd do it first.
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Old 12-26-2013, 06:36 PM   #7
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Yeah. I have checked the brake adjustment. Next is to start checking wiring. Are you saying to check the ground at the frame for corrosion?

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Old 12-26-2013, 09:56 PM   #8
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You first need to check the connection between the TV and the trailer. You can have a weak ground where it shows no resistance at low amperage, but high resistance at higher amperage. Also check the ground connections from each side to the wiring harness/frame. I was surprised yesterday by how much my connector had corroded. I had to replace the screw! Also those quick connects can weaken over time and cause a similar condition, which is why I solder and shrink wrap ALL wiring on my trailers. You can also coat the terminals with dielectric grease to help prevent corrosion.

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