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Thread: Stop leak product for power steering hydraulic system

  1. #1
    Join Date
    Apr 2019
    Location
    Abq
    Posts
    15
    My Cars
    1983 BMW 320i

    Stop leak product for power steering hydraulic system

    Hello all, I have ATF leaks on my Power steering pump and steering gear assembly. It's gonna be pricey for replacements so I'm thinking of using an ATF STOP LEAK product in the meantime. Has anyone had success with this in the hydraulic brake boost/power steering system? Is it likely to damage or cause issues with my booster, bomb or anything else?
    Second question, if I do use a stop leak product, should I use "ATF STOP LEAK" or "HYDRAULIC OIL STOP LEAK"? I'm thinking the hydraulic oil stop leak might be more effective since ATF stop leak is designed for transmissions.
    Please let me know what you guys think about this!
    Thanks!!

  2. #2
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,491
    My Cars
    1983/84/85 745i
    Start with the low side lines as most leaks are there. The high side lines can be rebuilt at a hydraulic shop.

    Booster leaks are not big deal either. A member here reseals them or sells a kit I think for the DIY guy.

    And stop leak is not going to stop 40 year old hoses from leaking.

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