My brake seized only on uphill?

Discussion in 'Ask An Owner Operator' started by engine_900, Jun 16, 2024.

  1. engine_900

    engine_900 Bobtail Member

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    Jul 16, 2021
    Vancouver, BC
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    Truck can't pull forward if comes completely stop uphill. Engaging clutch on low gear and will feel like parking brake is set and will cut the engine off if clutch is completely engaged. However once truck rolled backward for 10 feet or so (yes it will move once brake released), it would be good to pull forward again. No issue when stopping on flat/downhill.

    It appeared like winter time park brake seize, but only when uphill. Does it sound like a brake problem? 42000lbs load make it difficult to try more test and diagnose. Any suggestions will be greatly appreciated!
     
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  3. xsetra

    xsetra Road Train Member

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    Cam roll over, maybe.
     
  4. snowwy

    snowwy Road Train Member

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    You didn't mention what year truck.

    If it's newer. And it sounds like it. It has the anti hill lock feature. Whatever it's called. There's a button on the dash to release the brakes.

    I have the same problem in an automatic. Total PITA to get started going uphill. When it's loaded. It'll even kill the engine.

    Try to keep a distance from traffic so you can stay rolling when traffic is stopped.
     
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  5. drivingmissdaisy

    drivingmissdaisy Road Train Member

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    If it's a newer truck it sounds like the hill start assist isn't letting go.
     
  6. 77fib77

    77fib77 Road Train Member

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    Ah yes it assists the hill in stopping your truck.
     
  7. snowwy

    snowwy Road Train Member

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    It doesn't assist the hill in stopping.

    It maintains brakes so it doesn't roll back while you're trying to get going again.

    My 17 car and 22 pickup both have it and it works really good.

    Unfortunately for semis. It needs more work to be perfected. Same with the automatic transmission. PITA both systems.
     
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