Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: Hard brake pedal in reverse

  1. 17th November 2018, 05:36 PM #1
    shack
    shack is offline ChatterBox Supporter
    Join Date
    Jun 2013
    Location
    Universe A
    Posts
    2,645
    Total Downloaded
    0

    Hard brake pedal in reverse

    So we went for a jaunt today to a sale, had the trailer on which has override cable brakes, nothing strange happened until we are loading up our valuable purchases and I was backing down a hill.

    As I was going very slow backwards down the incline I was riding the brake pedal, probably only went 25 metres and the pedal went hard as a rock and wouldn't hold the car,I grabbed drive to stop and it was fine then, the brake pedal went back to normal, so I thought I would test again....Yep the same, so on the way home I tried going downhill forwards, couldn't make it happen.
    So what's going on? Vacuum leak? Vac pump on the way out?

    Cheers James
    Reply With Quote Reply With Quote
  2. 17th November 2018, 05:50 PM #2
    Aaron IIA
    Aaron IIA is offline Wizard
    Join Date
    Aug 2007
    Posts
    1,481
    Total Downloaded
    0
    Were you riding the brake pedal at a constant pressure, or repeated on and off?

    Aaron
    Reply With Quote Reply With Quote
  3. 17th November 2018, 06:42 PM #3
    justinc's Avatar
    justinc
    justinc is offline Swaggie Vendor
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,728
    Total Downloaded
    0
    Remove the vac fitting and poke a long zip tie in as a dipstick, I would bet on the booster having oil in it, reduces its capacity by up to 40% at least....
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
    Reply With Quote Reply With Quote
  4. 17th November 2018, 07:47 PM #4
    shack
    shack is offline ChatterBox Supporter
    Join Date
    Jun 2013
    Location
    Universe A
    Posts
    2,645
    Total Downloaded
    0
    Quote Originally Posted by Aaron IIA View Post
    Were you riding the brake pedal at a constant pressure, or repeated on and off?

    Aaron
    Probably a few jabs, but then riding the pedal and went hard, but I'd have to re check for sure
    Reply With Quote Reply With Quote
  5. 17th November 2018, 07:51 PM #5
    shack
    shack is offline ChatterBox Supporter
    Join Date
    Jun 2013
    Location
    Universe A
    Posts
    2,645
    Total Downloaded
    0
    Quote Originally Posted by justinc View Post
    Remove the vac fitting and poke a long zip tie in as a dipstick, I would bet on the booster having oil in it, reduces its capacity by up to 40% at least....
    Ok I can try, but I thought they had an electric vac pump, so the "oil" would be brake fluid? So the master cylinder would be down on fluid then?

    Edit: just checked, it's full to the full mark
    Reply With Quote Reply With Quote
  6. 17th November 2018, 08:09 PM #6
    justinc's Avatar
    justinc
    justinc is offline Swaggie Vendor
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,728
    Total Downloaded
    0
    Diesel or petrol? Diesel were prone to this issue only.
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
    Reply With Quote Reply With Quote
  7. 17th November 2018, 09:08 PM #7
    shack
    shack is offline ChatterBox Supporter
    Join Date
    Jun 2013
    Location
    Universe A
    Posts
    2,645
    Total Downloaded
    0
    Quote Originally Posted by justinc View Post
    Diesel or petrol? Diesel were prone to this issue only.
    Diesel
    Reply With Quote Reply With Quote
  8. 17th November 2018, 09:09 PM #8
    shack
    shack is offline ChatterBox Supporter
    Join Date
    Jun 2013
    Location
    Universe A
    Posts
    2,645
    Total Downloaded
    0
    But where does the oil come from?
    Reply With Quote Reply With Quote
  9. 17th November 2018, 10:56 PM #9
    justinc's Avatar
    justinc
    justinc is offline Swaggie Vendor
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,728
    Total Downloaded
    0
    Discovery 3 Brake Booster: TDV6
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
    Reply With Quote Reply With Quote
  10. 18th November 2018, 09:49 AM #10
    PerthDisco's Avatar
    PerthDisco
    PerthDisco is offline ChatterBox Subscriber
    Join Date
    Oct 2012
    Location
    Perth
    Posts
    2,700
    Total Downloaded
    0
    Quote Originally Posted by justinc View Post
    Discovery 3 Brake Booster: TDV6
    Does this problem disappear after a certain model year?
    Reply With Quote Reply With Quote
Page 1 of 2 12 LastLast
« Drive it like I stole it | Who has seen a D5 off-road? »

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!