Noises and Steering Pump Air
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Noises and Steering Pump Air in Past Cadillac Vehicle Discussion; I have had a problem with front end noises for about a year, with the exception of the rack most ...
  1. #1
    Yaemish is offline Cadillac Owners Connoisseur
    Automobile(s): 02 Seville, 04 SRX
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    Noises and Steering Pump Air

    I have had a problem with front end noises for about a year, with the exception of the rack most of my front end is new. I thought that I had eliminated the problem only to hear it reappear this past weekend. I have also recently replaced the high pressure line for the power steering after I found that it was leaking. I purged all the air but was still getting the bubble noise. I decided to replace the steering pump as well, as it was getting a little noisy and the steering seemed loose.

    With the new pump, I followed the air purging procedure and it is a lot less noisy. After about two weeks (and multiple purges), I still hear the bubbles and I am beginning to think that air is getting in there somehow. Is it possible that something is wrong with the rack and that it is causing my noise and letting some air into the power steering system?

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    EcSTSatic's Avatar
    EcSTSatic is offline Cadillac Owners Connoisseur
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    Re: Noises and Steering Pump Air

    What steps are you using to purge the air? I was about ready to return my new pump because of the noise , then I followed the steps that came with it again very carefully and the noise and air dissappeared

  4. #3
    Yaemish is offline Cadillac Owners Connoisseur
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    Re: Noises and Steering Pump Air

    I used a turkey baster to change out the remaining fluid as it got dirty during the procedure. With the wheels up you crank it to the left to add the fluid then go clock to clock 20-40 times to get the bubbles out. You put the front end down on cardboard, cap back on, let it run for two minutes then go lock to lock. After a day or so there will be air in the line again.

  5. #4
    EcSTSatic's Avatar
    EcSTSatic is offline Cadillac Owners Connoisseur
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    Re: Noises and Steering Pump Air

    If I remember right, it looks like your procedure is correct. I threw the instructions from my new Rippy pump away. You may have a leak somewhere letting air back in. I'm not sure how to find it, only tighten everything again.

  6. #5
    ktr-sb is offline Cadillac Owners Fanatic
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    Re: Noises and Steering Pump Air

    If you are getting air in the system without an external fluid leak, I would strongly suspect an issue on the suction side of the pump. Some folks have been known to use shaving cream or other water-soluble foam to find such leaks.

  7. #6
    Yaemish is offline Cadillac Owners Connoisseur
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    Re: Noises and Steering Pump Air

    The suction side is the high pressure hose which is brand new. I did a slow serpentine in the lot at home depot today and was able to let some air out. Maybe there was still some in the system.

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