got rid of power steering whine and hard spot
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, got rid of power steering whine and hard spot in Cadillac Escalade Forums; so before changing my fluid if i turned the wheel to the left it would hum and then there was ...
  1. #1
    bigirb2002 is offline Cadillac Owners Fanatic
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    got rid of power steering whine and hard spot

    so before changing my fluid if i turned the wheel to the left it would hum and then there was 2 hard spots. so i drained the old fluid and put in valvoline high mileage recommended by gm. It helped with the hum but still had hard spots and still could here the hum. So i drained more fluid out and put in a half of bottle of lucus power steering treatment. drove 1 day and later that night i noticed the hard spot was much softer. Went out this morning and its completely gone. Lucus power steering treatment is good stuff.Worked as advertised.

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    djais1801's Avatar
    djais1801 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    def gonna try that...my fluid levels were fine, and my tech lubed the shaft going into the firewall, still same issue...pump not leaking and only on left turns do i feel this weird rubbing/noise.

  4. #3
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    yup thats exactly how mine felt. mine didnt leak either and ps pump was replaced 7k ago. i just got tired of hearing it. a friend said lucus is what they use on there gm cars as preventive maintanance or to fix noise. it worked and im happy

  5. #4
    Snowboarder is offline Cadillac Owners Member
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    Re: got rid of power steering whine and hard spot

    I've had this as well, wondering if it's the same problem.

    Only has happened twice. If i'm making a hard right turn (like entering a highway ramp a little too fast) something happens and I start to get this high pitched buzzing noise that seems to fluctuate in sync with my acceleration. Goes away after I restart the car.

  6. #5
    djais1801's Avatar
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    Re: got rid of power steering whine and hard spot

    Quote Originally Posted by bigirb2002 View Post
    yup thats exactly how mine felt. mine didnt leak either and ps pump was replaced 7k ago. i just got tired of hearing it. a friend said lucus is what they use on there gm cars as preventive maintanance or to fix noise. it worked and im happy
    how many qts does the power steering take?

  7. #6
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    2-3 quarts

  8. #7
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    Re: got rid of power steering whine and hard spot

    okay thx!

  9. #8
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    get lubeguard ps fluide if u can or u can do there additive best on the market and gm approved. lucus did the job tho so i have no need to switch

  10. #9
    wake's Avatar
    wake is offline Cadillac Owners Enthusiast
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    Re: got rid of power steering whine and hard spot

    I flushed my PS last fall using the method found on here.

    The Escalades have the hydroboost system to assist in braking. To get clear fluid out of my system I went through about a gallon of fluid. The system holds quite a bit of PS fluid.

  11. #10
    the cadillac man's Avatar
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    Quote Originally Posted by wake
    I flushed my PS last fall using the method found on here.

    The Escalades have the hydroboost system to assist in braking. To get clear fluid out of my system I went through about a gallon of fluid. The system holds quite a bit of PS fluid.
    Wow I have wondered how much the system holds since it powers the steering rack and brake booster together(it don't seem like it would hold that much)

  12. #11
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    3 qt system however to flush it takes about 6-7 to get old stuff out without pumping it threw a machine

  13. #12
    the cadillac man's Avatar
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    Quote Originally Posted by bigirb2002
    3 qt system however to flush it takes about 6-7 to get old stuff out without pumping it threw a machine
    Ahh I see

  14. #13
    SkyKnight is offline Cadillac Owners Member
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    Re: got rid of power steering whine and hard spot

    Quote Originally Posted by wake View Post
    I flushed my PS last fall using the method found on here.

    The Escalades have the hydroboost system to assist in braking. To get clear fluid out of my system I went through about a gallon of fluid. The system holds quite a bit of PS fluid.
    I have the wining sound but no hard spots yet. What is the procedure for draining or changing the fluid?

    Thanx

  15. #14
    appleroma Guest
    Quote Originally Posted by SkyKnight View Post

    I have the wining sound but no hard spots yet. What is the procedure for draining or changing the fluid?

    Thanx
    I post athread here on ps fluid fludh

  16. #15
    bigirb2002 is offline Cadillac Owners Fanatic
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    Re: got rid of power steering whine and hard spot

    also hers one important step. properly bleed the system. all you do us jack the front end up so tires is off the ground. key in on position but dont crank. turn wheel all way to left then all the way to right for about 10 min.top off fluid as air bubbles come out the lines. dont let the fluid get to low or you will have to start over. now sometimes the whine come back later. if it does air is getting in somehow.

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