Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

clutch keeps losing oil

Discussion in 'Volvo Forum' started by dphillips, Jul 29, 2014.

  1. Jul 29, 2014 #1
    dphillips

    dphillips Light Load Member

    82
    8
    May 14, 2013
    0
    I have a 2007 Volvo 670 about every 2 weeks i have to put that Dot 4 oil in for the clutch brake the clutch peddle will simply get soft and not engage I'll put the oil in and it hardens up but when i stop I'm not seeing any leakage i wonder if there's air somewhere in the system any suggestions.
     
    dphillips, Jul 29, 2014
    dphillips, Jul 29, 2014
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Jul 29, 2014 #2
    boneebone

    boneebone Road Train Member

    2,232
    2,266
    Mar 13, 2009
    0
    If you need to add Dot 4 Brake Fluid it means you have a leak, it's either your Master or Slave Cylinder. It's better to just change both and be done with it before it leaves you stranded.
     
    Last edited: Jul 29, 2014
    boneebone, Jul 29, 2014
    boneebone, Jul 29, 2014
    #2
    baha and Ezrider_48501 Thank this.
  4. Jul 29, 2014 #3
    Starboyjim

    Starboyjim Road Train Member

    2,039
    1,424
    Dec 10, 2011
    Weed, CA
    0
    Listen and obey, Grasshopper, to these words of wisdom. One Road Service would buy a lot of hydraulic cylinders. The dollar value of the time spent waiting for help and not rolling miles can't really be estimated - but it's an important number.
     
    Starboyjim, Jul 29, 2014
    Starboyjim, Jul 29, 2014
    #3
    boneebone Thanks this.
  5. Jul 30, 2014 #4
    WCA64T

    WCA64T Bobtail Member

    29
    16
    Feb 13, 2014
    0
    If you have a leak, air and moisture are likely in the system as well. Air, moisture, and brake fluid can cause your cylinders (both master and slave) and lines to corrode. Or at least that was my experience on an old Pete cabover I once had. If one of the cylinders freezes up while moving, all you can do is cut the engine and step on the brake to stop. This kind of issue needs fixing right away.
     
    WCA64T, Jul 30, 2014
    WCA64T, Jul 30, 2014
    #4
  7. Jul 30, 2014 #5
    rank

    rank Road Train Member

    9,870
    113,146
    Feb 11, 2010
    50 miles north of Rochester, NY
    0
    I feel like I am about to learn something. Where in the sam hill does brake fluid go on a big truck?
     
    rank, Jul 30, 2014
    rank, Jul 30, 2014
    #5
  8. Jul 30, 2014 #6
    boneebone

    boneebone Road Train Member

    2,232
    2,266
    Mar 13, 2009
    0
    Some trucks like the Volvo use a Hydraulic Clutch, hence the Master and Slave Cylinder for it. It uses DOT 4 Brake Fluid in the Reservoir.
     
    boneebone, Jul 30, 2014
    boneebone, Jul 30, 2014
    #6
  9. Jul 31, 2014 #7
    blanco

    blanco Road Train Member

    1,221
    296
    Nov 20, 2009
    Gwinnett County, GA
    0
    I second the advice here. Get that slave or hydraulic line replaced asap. It WILL leave you stranded and you will not be able to stop or start.
     
    blanco, Jul 31, 2014
    blanco, Jul 31, 2014
    #7
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.