Power Steering High Pressure Hose

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  • 1 Post By ternstes
Cadillac Seville / Cadillac Eldorado Forum Discussion, Power Steering High Pressure Hose in Past Cadillac Vehicle Discussion; I started my '02 STS the other day and left it running for a bit as it has been sitting ...
  1. #1
    GeorgeJung is offline Cadillac Owners Member
    Automobile(s): 2002 STS
    Join Date
    Jun 2007

    Power Steering High Pressure Hose

    I started my '02 STS the other day and left it running for a bit as it has been sitting over the winter due to a drawn out brake line job. I noticed a large stream of clear liquid coing from under the car. I looked and it is dripping down from the line behind the trans on the rear rack. From my research this sounds like a high pressure hose.

    I have searched for about an hour or so and found a few other threads, but none that really go into detail of how to replace it. My main question is do I need to take the rack apart or drop the sub-frame to replace this? One end goes into the pump and the other into the rack correct?

    Also, rockauto mentions a hydroboost option, which from reading some threads, my car doesn't have...

    If someone could post a link to a good thread on how to replace it or provide some tips that would be greatly appreciated.


    here are the threads I came across:


    http://www.cadillacforums.com/forums...g-leaking.html (this thread mentions good wiretups but I can't find them)

    http://www.cadillacforums.com/forums...-question.html (good diagram, leak is flexible part of hose 1)

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  3. #2
    maeng9981's Avatar
    maeng9981 is offline Cadillac Owners Connoisseur
    Automobile(s): 14 SRX, 00 SLS, 99 Deville 50-year Anniversary
    Join Date
    Mar 2009
    Dallas, TX
    Power steering high pressure line is easy to replace with the front wheels on ramps. No messing with the steering gear itself or cradle.

    Drain the fluid, then take both sides off. It should be easy to see the retaining points from under the car. Remove the line, and install a new line. Done

  4. #3
    ternstes is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS V, 2007 SRX V8, 2005 CTS 3.6L, 2000 STS, 1999 STS
    Join Date
    Nov 2008
    SW Ohio
    Fyi, the pressure hose bolt at the steering gear is 18 mm. An open end wrench with enough leverage should break it free. It isn't difficult, but the 10 mm nut that secures the pressure line to the engine next to the timing cover can be frustrating to access. It is also fun trying to slip the new hose into place with all its bends.
    SliceOfLife likes this.

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