Question about Pontiac Sunfire

4 Answers

Hydrolic Clutch only works intermittently. Sometimes it works as new and sometimes pedal goes to the floor and I can't shift gears. I recently added a small amount of fluid as level was down.

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  • ron_cosburn Aug 23, 2008

    The problem started after recently driving for two hours on an extremly
    bumpy, gravel backroad.

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4 Answers

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  • Master
  • 876 Answers

Air is stopping the clutch from releasing. You can make your own pressure bleedeer:

Make your own pressure bleeder
Cut in a circle around the air fill nipple of a bicycle inner tube. Use a hose clamp to secure this piece around the fill hole of the reservoir and attach bike pump. Make sure you are topped off with fluid and pump a couple times. Open bleeder (clear tubing on bleeder nipple leading to container with a little new fluid in it) and repeat until no air bubbles appear.


Good luck amd Thank You for using Fix Ya! Please rate this solution.

Posted on Aug 23, 2008

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  • Master
  • 1,043 Answers

Well you mentioned that you had to add some fluid.
have you checked to see if the slave is leaking?
The sometime to the floor would also be related to the slave.

Just like brakes, on a hydraulic clutch, you have a mater and a slave. The master is on the firewall by the clutch pedal, and the slave is on the bellhousing with a rod that goes to the throw out bearing arm.
If the slave is leaking past the seals, it would cause the "no pedal". Also if it was leaking, you would lose fluid.
Since it is front engine, front wheel drive, you can inspect it just by opening the hood, and following the line from the mater to the slave.
Look for signs of fluid by the slave.
Easy fix, not that expensive.

Posted on Aug 23, 2008

  • Coss Aug 23, 2008

    BTW This was a very common problem for 60's British cars. They also used a hydraulic clutch.

    Many a mechanic told the owners they needed a clutch, or a transmission, only to find out later that it was just a simple slave seal leak.

  • Coss Aug 27, 2008

    Since you mentioned that this happened after driving on a back road, it sounds like you may have damaged the line between the mater and the slave, or you may have even cracked the slave unit from a rock.

    Here again, a close inspection of the slave will probably show the problem.

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  • Master
  • 623 Answers

Buy new
clutch kit,bushings might be worn out...

Posted on Aug 23, 2008

  • ritchie dempacco
    ritchie dempacco Aug 23, 2008

    try my solution
    good luck


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  • Expert
  • 157 Answers

Hello sir

Posted on Aug 23, 2008

  • 1 more comment 
  • John Smith
    John Smith Aug 23, 2008

    Check the level of the fliud
    You may need a new gear box

    Cheers


  • John Smith
    John Smith Aug 23, 2008

    also air in hydraulic clutch prevents it from working

  • John Smith
    John Smith Aug 23, 2008

    To simplify the description of the problem, the clutch in your vehicle
    is intermittently failing to fully release -- or disengage -- the
    engine from the transmission. I agree with you that it is less likely
    to be a problem with the mechanical components of the clutch -- the
    pressure plate, clutch disc and release bearing. The hydraulic clutch
    release mechanism is a far more likely suspect. Either way, continuing
    to drive when this occurs definitely will shorten the life of the
    transmission synchronizers.

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