Freightliner making loud grinding noise!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by BigO293, May 10, 2021.

  1. BigO293

    BigO293 Bobtail Member

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    Hello, I am an o/o of a 2001 Freightliner Century class and lately it makes a loud grinding noise in the front of the truck when making an "L" turn left or right. It only happens when I am loaded and making an "L" turn. The steering wheel does not get hard when turning.

    I changed the power steering pump but it didn't fix the problem..

    Any advice on what it can be is truly appreciated!
     
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  3. BoxCarKidd

    BoxCarKidd Road Train Member

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    What is "L" turn left or right? I do not understand.
     
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  4. AModelCat

    AModelCat Road Train Member

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    Tires not rubbing against anything?

    Not sure what an "L" turn is either?
     
  5. baha

    baha Road Train Member

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    CK the ft. spring bushings they can wear out so much after years of wear that they let the springs shift and rub?
     
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  6. BigO293

    BigO293 Bobtail Member

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    Sorry about that. By a L turn I mean a sharp turn like in an intersection in the form of an L.
     
  7. Joyce's Volvo

    Joyce's Volvo Light Load Member

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    Jack up the front axle and check for slack or noise in the bearings , sounds as if you got a bearing starting to flake ( failure). Any slack or noise - pull it and check bearings and races for Pitts ( flaking ), any flaking- replace both bearings and races , replace the seal while your in there .
     
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  8. Rideandrepair

    Rideandrepair Road Train Member

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    Did you change the filter for PS system?
     
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  9. BigO293

    BigO293 Bobtail Member

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    I did not. Where would that filter be located?
     
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  10. Rideandrepair

    Rideandrepair Road Train Member

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    Usually inside the reservoir, at the bottom, held by a bolt or nut.
     
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