Brake Problems after rear caliper falls & replaced. Never the same brakes!
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Thread: Brake Problems after rear caliper falls & replaced. Never the same brakes!

  1. #1
    FRESHMAN ROVER
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    Brake Problems after rear caliper falls & replaced. Never the same brakes!

    I was replacing pads and discs on my 2006 RRS SC. I added the EBC rotors and front yellow with rear pads.
    Started the job and left the rear job to my local mechanic helper, should have know better!!!
    All seemed good, I took it easy on the first 200 km, an on my way back was starting to push on my brakes and boy did I almost get killed.
    After I got off the car feeling the brake pedal go ALL the way down noticed my rear right caliper was mssing!!!
    Took the car to the dealership, ordered a new one which arrived on the third time the right one.
    At the dealership I replaced rear pads with a new EBC set, changed the brake fluid (there was almost no fluid left since it had been pumped out!!) and left.
    It took m some time to start pushing my brakes hard again, but they did not feel right, so i stopped by the dealership about 1000 km after the incident, paid them to flush the brake fluid twice and everything else chacked. Pads were still like new, rotors in perfect shape but still brakes were not doing their right job.
    It feels like the last part of my braking effort is not there anymore. Example: Green light goes and i start driving to find another idiot push their brakes and its like inmediate fade on my brakes!
    If i go up to 150 km and put my brakes down really hard, my car will really slow down with the EBC system I added, but that little part left when i start and stop briefly is not working right!! I think my brembo brakes would super cling before I did this upgrade. I went back to the OEM pads and still have the same issue with super slow brake when I start and stop.
    I have heard that maybe my brake pump had dameged when it ran dry when the incident happened?
    I just dont knwo what to do now, its out of warranty and don't want to buy the Brembo Gran turismo kit just to find out it won't brake like stock either.
    Have since done another dot4 brake flush at the dealership and NOTHIN GETS BETTER!
    They want to change the Booster and ABS pump, they don't guarantee me its going to solve the problem. They are nuts!!
    Have a local shop with Autologic Diagnostic system, they say my car is running normall after diagnostic.
    Any Suggestions please!!!
    Thank you
    JJB

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  3. #2
    Premium Member gooseyloosey's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Crikey's.

    You still have air in the system.

    1. It's possible the loss of that much fluid may have ruined the master cylinder seals and the m/c needs to be rebuilt/replaced as well. Additionally, its almost impossible to bleed the m/c on the car without a pro type vacuum pump. Even then, the best way is to have the m/c bench bled unless you think you have the luck of the gods (which I'm thinking you don't have right now).
    2. To bleed the ABS module requires special electronics to activate the pump in the right sequence. The dealer is your best bet.



    '08 RRS HSE Stornoway Gray

    Space isn't remote at all. It's only an hour's drive away if your car could go straight upwards.

  4. #3
    FRESHMAN ROVER
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    gooseyloosey:
    Hello and thanks for the info.
    What parts should I replace in order for this to work?
    The mastercylinder is new $100 dollars, ABS pump????? do i need to change?, Brake booster??? Do i need to change??
    The Autologic system can bleed the ABS module no problem.
    The dealership is saying it doesn't have air in the system but I believe that you are correct.
    I look forward on your comments,
    Thank you amigo,
    Best regards,
    JJB

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  6. #4
    Premium Member gooseyloosey's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Start at the top and work your way through the system. Your booster is least likely to be the issue.
    1. Remove the master cylinder and have it bench bled, you will find out if the seals have been damaged if you can't get it bled. (What happens on an older master cylinder is the piston bore wears around 1" of stoke and creates a bit of a lip on either side. When you over stroke it--such as in a major fluid loss you had--you can nick the seals on the stoke and they won't seal well afterwards. If you nick the rear seal you get the sensation of a falling brake pedal. This is why after putting on new pads, when you pump the pedal to reset the pads you are better using short quick stokes vs. long strokes)
    2. Bleed the ABS module using IDS or Autologic or whatever can do it
    3. Bleed the lines at the calipers understanding that the circuits are diagonal. Don't be afraid to use lots of fluid.

    Good luck.



    '08 RRS HSE Stornoway Gray

    Space isn't remote at all. It's only an hour's drive away if your car could go straight upwards.

  7. #5
    FRESHMAN ROVER
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Thanks amigo, I ordered only a new master cylinder and a couple of quarts.
    I look forward to having brakes again!
    Have a good day!
    Best regards,
    JJB

  8. #6
    Premium Member gooseyloosey's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Ok, make sure you have it bench bled first.

    Also I don't know who makes the LR m/c (Ate, hayes whatever) but if you have any questions they should have some install instructions available on their website or via a vendor--or perhaps contact them first to get them before the install.

    Let us know how it goes!



    '08 RRS HSE Stornoway Gray

    Space isn't remote at all. It's only an hour's drive away if your car could go straight upwards.

  9. #7
    Premium Member TripleE's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Quote Originally Posted by jjb218 View Post
    my rear right caliper was mssing!!!
    Ok, WTF happened here...

    '07 RRS
    '03 325i
    '94 GSX

  10. #8
    Premium Member gooseyloosey's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Quote Originally Posted by TripleE View Post
    Ok, WTF happened here...
    http://www.ebay.com/itm/LAND-ROVER-C...sories&vxp=mtr



    '08 RRS HSE Stornoway Gray

    Space isn't remote at all. It's only an hour's drive away if your car could go straight upwards.

  11. #9
    Premium Member TripleE's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    ha!. .

    '07 RRS
    '03 325i
    '94 GSX

  12. #10
    SOPHOMORE ROVER 98cruiser's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    Goose your crazy bro!!! lmao
    Quote Originally Posted by gooseyloosey View Post

    2011 RRS SC, Orkney Grey, Tan interior, 22" rims, roof rack, running boards, supercharged side vents, black lettering, double tip deleted Resonator exhaust. EuroCharged pulley and tuned ECU. 568HP

  13. #11
    Premium Member dantheman1's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Never the same brakes!

    any updates on this? Did the new MC fix the problem?
    2011 RRS Supercharged, Santorini Black on Tan, ATB front and side grilles
    2008 RRS HSE Lux (sold), Alaska white on Ivory/Ebony, Supercharged front and side grill's,
    20" genuine stormer wheels, Supercharged front Brembo brake retrofit, Supercharged exhaust tips retrofit, 2010+ tail lights retrofit, Nappa leather steering wheel retrofit.
    2005 LR3 HSE (sold), Java Black on Alpaca, oversized all-terrains, LR genuine expedition roof rack, grille guard, and tail lamp guards.

  14. #12
    JUNIOR ROVER
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    Re: Brake Problems after rear caliper falls & replaced. Neve

    Bump---
    I see the poster never returned with what fixed his brake problem.
    I have the same problem and am wondering what the fix is. Just ordered a new MC but I have my doubts if that will be the fix.

    Problem-- Knocked brake bleeder off on front caliper on a rock in deep mud ruts. Leak repaired but now pedal sinks to floor.
    The guess is a new MC.

    PS; unfortunately I am not near where my truck is. This happened in the bush 200 Kms from home and I drove it very slowly to a Canadian Tire general repair shop. So everything is being done by phone to the service manager. He told me they have the scanner to work the ABS and they bled the system but the brake pedal works but fades to the floor.

    Any help appreciated, arby
    2009 RRS S/C

  15. #13
    Premium Member MI2VA's Avatar
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    Re: Brake Problems after rear caliper falls & replaced. Neve

    Any news if the Master cylinder fixed the issue? I had a '91 4Runner that had same issue and found master cylinder had bad O ring allowing fluid to go around the MC piston and peddle going to floor. Replaced MC and all well.
    good luck
    2006 RRS LUX, Rimini Red, Alpaca leather, 275/65 R18 Terra Grappler G2s, 1.5" lift, RSE, reclining rear seats, Resonator delete (all), SAT

  16. #14
    SOPHOMORE ROVER
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    Re: Brake Problems after rear caliper falls & replaced. Neve

    I just love it when some newby opens a seven year old thread. You can be assured that the master cylinder replacement fixed the problem and the OP never returned to close the loop. A constant issue on these forums.

    This problem was a classic case of a master cylinder blown by having the pedal go all the way to the floor.

    Wonder whatever happened to Goosey? Miss his humor.

    As for Arby: sometimes if the tech replaces the hydraulic fitting and bleeds out the system, the problem is fixed. Sometimes you have to rebuild the master cylinder (or replace -- nobody rebuilds today, **** it) or the caliper. Once the o-rings are slipped, you rebuild or replace to hold pressure.
    Cheers, Jim

    2017 Lincoln Continental Select 2.7 AWD; 2013 RRSport HSE, 40000 miles (traded); 2001 Jaguar XJ8L X308 BRG 89000 miles (traded on RRS); 08 RRSport SC (sold); 08 LR 3 (traded); 05 LR 3 4.2 (traded); 04 BMW Z4 sold; 01 XJ8 anthracite (for LR 3); 98 Z3 (traded on Z4); 01 S-type 4.0 V8 (traded on XJ8; 99 323 IC (traded on S-type); 94 Deville traded; 88 325IS sold

  17. #15
    JUNIOR ROVER
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    Re: Brake Problems after rear caliper falls & replaced. Neve

    Just got word back from the shop. They replaced the MC but he says the brakes work but not very good and don't tailgate.
    I guess I'll try to get it to a dealer. I was pretty sure that the MC was not the problem.
    But I have no idea what it could be. Must be some kind of valve thing somewhere in the system. The guy mumbled something about brake control module showing up on their scan tool.

    I had the same trouble with My Daughter's BMW X5 that blew a brake line. The shop that repaired it guessed that it needed a new MC for 6 or 700 bucks. I took it to a BMW specialist and he fixed it without replacing the MC. That was 3 or 4 years ago and I never did ask him what he did but I think it had something to do with having BMW scan tools.
    2009 RRS S/C

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