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Clutch Problems

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Cummins600, May 20, 2011.

Page 1 of 2
  1. May 20, 2011 #1
    Cummins600

    Cummins600 Bobtail Member

    26
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    May 18, 2011
    Pa
    0
    Hey everyone,

    Have a 2000 Volvo 770 and its having some clutch issues. When I go to release the clutch, sometimes the clutch releases at different points. About half the time it releases fine, but the other half is wishy-washy. Sometimes there is no pressure in the clutch pedal. Could this be a slave cylinder/master cylinder issue? Please help! Thanks!
     
    Cummins600, May 20, 2011
    Cummins600, May 20, 2011
    #1
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  3. May 20, 2011 #2
    jstjames13

    jstjames13 Bobtail Member

    3
    0
    Apr 20, 2011
    snowflake arizona
    0
    It probably blew apart take the inspection plate off and see if there's anything falls out I just did a clutch in one two weeks ago same symptoms
     
    jstjames13, May 20, 2011
    jstjames13, May 20, 2011
    #2
  4. May 21, 2011 #3
    AUSSIE DAVE

    AUSSIE DAVE Road Train Member

    1,032
    173
    Feb 21, 2010
    OZ - Brisbane
    0
    sounds like it may be the pressure plate, if so make sure you replace the clutch, pressure plate and throw out bearing, and clutch brake
     
    AUSSIE DAVE, May 21, 2011
    AUSSIE DAVE, May 21, 2011
    #3
  5. May 21, 2011 #4
    Native Dancer

    Native Dancer Heavy Load Member

    978
    3,259
    Dec 28, 2007
    Portland, Or.
    0
    Spring has come out of clutch plate? As jstjames13 said take off inspection plate and look for pieces.
     
    Native Dancer, May 21, 2011
    Native Dancer, May 21, 2011
    #4
  7. May 21, 2011 #5
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,725
    Jun 14, 2009
    romulus,mi
    0
    if you are not replacing that stupid slave cylinder at least once a year,then you have been super lucky.If you can't see the slave underneath,check and see if the master cylinder is empty.
     
    QUALITYTRUCK, May 21, 2011
    QUALITYTRUCK, May 21, 2011
    #5
    Cummins600 Thanks this.
  8. May 21, 2011 #6
    canuck in da truck

    canuck in da truck Road Train Member

    4,352
    2,601
    Aug 6, 2010
    western pa
    0
    could be some air in the system as well--iird you can bleed the system and then try it
     
    canuck in da truck, May 21, 2011
    canuck in da truck, May 21, 2011
    #6
  9. May 23, 2011 #7
    Cummins600

    Cummins600 Bobtail Member

    26
    8
    May 18, 2011
    Pa
    0
    Well guys, we replaced the slave cylinder first and that didn't fix it. We then moved on to the master cylinder and that did the trick! Thanks everyone for the help.
     
    Cummins600, May 23, 2011
    Cummins600, May 23, 2011
    #7
    HopeOverMope Thanks this.
  10. May 23, 2011 #8
    Native Dancer

    Native Dancer Heavy Load Member

    978
    3,259
    Dec 28, 2007
    Portland, Or.
    0
    Not familiar with Volvos. What is this slave and master cylinder?
     
    Native Dancer, May 23, 2011
    Native Dancer, May 23, 2011
    #8
  11. May 23, 2011 #9
    Superhauler

    Superhauler TEACHER OF MEN

    12,209
    100,723
    Jan 30, 2010
    keep stroking.
    0
    works the clutch hydraulicly.
     
    Superhauler, May 23, 2011
    Superhauler, May 23, 2011
    #9
    Native Dancer Thanks this.
  12. May 23, 2011 #10
    Native Dancer

    Native Dancer Heavy Load Member

    978
    3,259
    Dec 28, 2007
    Portland, Or.
    0
    Why could they not use the simple, fail proof system everybody else uses?
     
    Native Dancer, May 23, 2011
    Native Dancer, May 23, 2011
    #10
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