Self inflicted problem!!! Please help!
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This is a discussion on Self inflicted problem!!! Please help! within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hi all, Long time reader, first time poster. I just now was in the process of pumping out and topping ...

  1. #1
    Registered User
    Join Date
    Jul 2014

    Red face Self inflicted problem!!! Please help!

    Hi all,

    Long time reader, first time poster.

    I just now was in the process of pumping out and topping up the power steering fluid when I realised I had put power steering fluid in the brake fluid reservoir! (It was after a long day shopping with my GF, mind numbing stuff)

    I immediately realised what I had done and disconnected all the hoses and disconnected the reservoir from the master cylinder. There was no sign of PS fluid in the two hoses but a tiny bit has dripped onto the master cylinder when I disconnected the reservoir.

    I'm just wondering what I should flush the reservoir out with?
    Has anyone had this problem before?
    And will that save me?

    Bare in mind I haven't started the car yet or pumped the brakes once so I'm wondering if that has stopped PS fluid from possibly getting to the master cylinder and saved me. Please help! Thanks in advance.

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  3. #2
    Moderator Donkey's Avatar
    Join Date
    Apr 2005
    Da boonies,Va
    I Support ClubWRX
    You should not have disconnected anything. You have caused more of an issue than resolving it. I would have used a Mighty Vac or something of the likes to remove as much of the fluid from the reservoir as possibly without letting it get completely dry. Then refilled with new fluid,bleed brakes to remove the rest of the contaminated and topped off. You will now need to bench bleed the master cylinder as well as the rest of the system.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S

  4. #3
    Administrator ...De Rerum Natura TheJ's Avatar
    Join Date
    Jul 2002
    Bro do you even live in the Dirty South
    I Support ClubWRX
    Not an expert... But what I've read said that basically any rubber component that the ps fluid touches must be replaced (normally every rubber part). Since you have the rare circumstance where it was discovered before the brakes have been used/pumped, you may be able to just immediately siphon the ps fluid from the master cylinder, reverse purge the system and replace the master cylinder.

    Sorry I can't be more helpful.
    -The J 𒂼𒄄
    "Driving most supercars is like trying to manhandle a cow up a back staircase. . . This is like smearing honey into Keira Knightly" -JC

  5. #4
    Registered User
    Join Date
    Jul 2014
    Thanks guys. I've managed to take the master cylinder and reservoir off. And yes since the master cylinder wasn't pumped whilst still installed, or until it was cleaned, there was no PS fluid any further. (From what I can see). So now I've bled the master cylinder and completely cleaned the reservoir. Fingers tightly crossed that I'm in the clear because from what I've read, much like you said J, I was looking at catastrophic problems... All smiles for now. Hopefully it all works out. I'll keep an update.

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