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Power steering noise?

Discussion in 'Mondial' started by JLF, Feb 27, 2020.

  1. JLF

    JLF Formula 3
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    Sep 8, 2009
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    #1 JLF, Feb 27, 2020
    Last edited: Feb 27, 2020
    Hey guys a couple of days ago my power steering started making noise when I would turn the steering wheel left or right. The fluid in the reservoir looked like it was full of air ie. very foamy. I put more fluid in and today jacked front of car up and turned wheels lock to lock at least 20 times. There was no noise. Put the car back on the ground and there is noise when steering again. Any ideas what may be causing this? The noise sounds like low fluid or air in the lines but the fluid isn’t low.
    Isn’t the bleeding procedure to simply turn wheel lock to lock several times?
     
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  3. Wade

    Wade Three Time F1 World Champ
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    Mar 31, 2006
    32,194
    East Central, FL
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    Wade O.
    Section E - Steering is very brief. Nothing on bleeding either. What kind of fluid are you using?

    Image Unavailable, Please Login

    I've attached Section E, but you might need to rotate the document after opening it.
     

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  4. thorn

    thorn F1 Rookie
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    The foaming is a symptom of air in the system. Look for a leak, either around the pump or the steering rack.
     
  5. JLF

    JLF Formula 3
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    Thank you. Wade. Thorn no spots on the garage floor, shouldn’t I expect to see that?


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  6. thorn

    thorn F1 Rookie
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    Not necessarily. Look for wet "spots" (basically, a darker color) around the hoses/connections, reservoir, possible the boots on the rack. There could also be an inner leak in the rack. Sometimes it looks merely like dirty, oily debris on the pump.
     
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  8. JLF

    JLF Formula 3
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  9. mike32

    mike32 F1 Rookie

    May 13, 2016
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    When you get air in hydraulics you will find the fluid level will rise, the entrained air increases the volumn in the system. If you can find the return line to the tank, disconnect and extend pipe into a container. Also blank off the return connection on the tank. With front wheels off the floor you can turn the wheels left to right and see if all the air comes out. Keep filling the tank. If the air comes back then you must have a leak somewhere
     
  10. JLF

    JLF Formula 3
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  11. moysiuan

    moysiuan Formula 3
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    Probably a loose hose fitting, with air being sucked in, a low pressure vacuum leak it would be called, look on the return side.
     
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  13. JLF

    JLF Formula 3
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