HELP, need truck tomorrow. Pulls to right, then to left under braking. Smells hot. - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 09-15-2009, 06:29 PM Thread Starter
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HELP, need truck tomorrow. Pulls to right, then to left under braking. Smells hot.

I first noticed a slight vibration, almost like a warped rotor, under braking, but it went away and I didn't think anything more of it.

Then later I was heading to another job and it started pulling to the right, and when I would straighten the wheel, it would lightly wobble back and forth. When I stepped on the brake, it feels like it was pulling to the left.

It smells hot in the front, seems more like right side. I'm not sure if it is a stuck brake, which seems pretty rare, a bad hub, or what it is. I haven't pulled anything apart yet, will tomorrow. Just trying to get help towards the right direction if anyone has any ideas what it could be.

Any help is appreciated. I need to get this fixed and the truck back to work asap. Truck has 79k if that makes any difference.
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post #2 of 14 Old 09-15-2009, 06:45 PM
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did you pull off the tires to look at the pads

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post #3 of 14 Old 09-15-2009, 06:55 PM Thread Starter
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No, I haven't yet. Was going to tomorrow. The rears were replaced 1500 miles ago, pads and rotors. The fronts were replaced about a year ago by the previous owner. I plan to look at them tomorrow. I figured that would explain the right pull, but the hopping still is a mystery.
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post #4 of 14 Old 09-15-2009, 07:02 PM
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are you low on ps fluid

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post #5 of 14 Old 09-15-2009, 07:04 PM
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right caliper is hanging up... either a bad caliper or collapsed flex hose

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post #6 of 14 Old 09-15-2009, 07:11 PM Thread Starter
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No. All fluid levels are good.
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post #7 of 14 Old 09-15-2009, 07:14 PM Thread Starter
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Appreciate the help. I'll be sure to check them tomorrow. Thanks.
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post #8 of 14 Old 09-15-2009, 07:30 PM
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jack it up step on the brake get out go see if that tires turns easy on the right front.. if its dragging or hard to turn that caliper or line is bad

now to check to see if its the caliper or the line pull the wheel and loosen the bleeder screw, if fluid shoots out and the wheel can be turned easily then the flex line is broken inside and holding pressure not letting it back in to the master cylinder .. if the pressure is released and the wheel is still hard to turn then the caliper or the sliders for the caliper are seized

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post #9 of 14 Old 09-15-2009, 07:59 PM
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I think that your pulsing is probably from a warped rotor due to the brakes being hot from a stuck caliper or collapsed line.

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post #10 of 14 Old 09-16-2009, 10:52 PM Thread Starter
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Changed a stuck RF caliper and rotor, and both front rubber lines today.

Thanks for the quick help.
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