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  1. #1
    Join Date
    Aug 2007
    Location
    Alpine, Utah
    Posts
    191

    Default Bleed Brakes but still NO Brakes?

    If I have bleed my brakes and yet they still don't seem to work (I can unplug the electrical connection and still back the trailer up) ..... what does that mean? Do I need to replace parts in my hitch? Replace the whole thing (might be easier then tearing it apart)?

    Garn
    Garn
    2007 Mobius LS (Direct Drive)

  2. #2
    Join Date
    Oct 2010
    Location
    Lake Wylie NC Area
    Posts
    2,467

    Default

    How did you bleed them? I have found that pressure bleeding works better on a trailer then gravity bleeding. If they are drum brakes, they may need to be cleaned, lubed and adjusted. If they are disk, check frozen caliper slide pins. With the trailer disconnected from the hitch, is the coupler pin forward in the slot or rearward? If forward, how much resistance is there when you try to push it in manually? If its rearward, then couple may be sticking, master cylinder binding, air in the system. Can you pull is forward?

  3. #3
    Join Date
    Oct 2005
    Location
    Durham, NC
    Posts
    649

    Default

    MLA is right. Check the other stuff before dealing with the actuator. It turns out that I needed a new one, but I pulled the calipers of and checked and lubed everything else first.

  4. #4
    Join Date
    Jun 2010
    Location
    Lake Houston
    Posts
    656

  5. #5
    Join Date
    Aug 2011
    Posts
    2,522

    Default

    http://www.instgram.com/jlyons30
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV - Sold
    2017 Moomba Craz - Enzos, Lead

  6. #6
    Join Date
    Jun 2010
    Location
    Lake Houston
    Posts
    656

    Default

    Yeah either one will work.
    2013 LSV
    2005 LSV - SOLD

  7. #7
    Join Date
    Aug 2007
    Location
    Alpine, Utah
    Posts
    191

    Default

    I have a Mityvac which is what I bleed it with. MLA, I will try those things you suggested. One questions, if I can manually move the coupler by hand, forward or back, what is that telling me?
    Garn
    2007 Mobius LS (Direct Drive)

  8. #8
    Join Date
    Oct 2010
    Location
    Lake Wylie NC Area
    Posts
    2,467

    Default

    Quote Originally Posted by Garn View Post
    I have a Mityvac which is what I bleed it with. MLA, I will try those things you suggested. One questions, if I can manually move the coupler by hand, forward or back, what is that telling me?
    Theres no resistance, so its full of air, out of adjustment, or the fluid is bleeding past the piston seal. It should take a fair amount of force to compress the coupler and then it should return on its own.

  9. #9
    Join Date
    Aug 2011
    Posts
    2,522

    Default

    Quote Originally Posted by MLA View Post
    Theres no resistance, so its full of air, out of adjustment, or the fluid is bleeding past the piston seal. It should take a fair amount of force to compress the coupler and then it should return on its own.
    How much fluid did you pull out with the mityvac? I think it took at least a small bottle of brake fluid when I did mine...
    http://www.instgram.com/jlyons30
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV - Sold
    2017 Moomba Craz - Enzos, Lead

  10. #10
    Join Date
    Aug 2011
    Posts
    2,522

    Default

    Quote Originally Posted by parrothd View Post
    How much fluid did you pull out with the mityvac? I think it took at least a small bottle of brake fluid when I did mine...
    I can manually push my coupler about a 1/4 of the way in before it starts to kick in....
    http://www.instgram.com/jlyons30
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV - Sold
    2017 Moomba Craz - Enzos, Lead

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