engine dies when steping on clutch

Discussion in 'Technical' started by bartikus, Mar 8, 2009.

  1. bartikus

    bartikus Member

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    so i push on my clutch and the rpms drop off and the engine then dies. i thought it was the throw out bearing so i replaced it and it still does it. the main reason i thought it was the throw out bearing is because it has been hissing like the bearing was going out after replacing the bearing it still coes that too. does anyone have an idea what it could be? the only other place that i could think of that has bearings that could hiss like it does is in the tranny. could one of the bearings in the tranny be going out?
     
  2. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    Sounds like you have a vaccum leak...Does the trans make noise only with your foot on the clutch or all the time in any gear???
     
  3. Bryant

    Bryant forgot more than learned

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    thoes it instantly when you push the pedal in, or when you come to a stop or kinda sputers out?
     
  4. bartikus

    bartikus Member

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    it makes a bearing hissing noise all the time and when you start to engage the the clutch it then causes the engine to die. this is when you are sitting and not moving.
     
  5. Bryant

    Bryant forgot more than learned

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    i suspect your trans is broken and locked up.
     
  6. bartikus

    bartikus Member

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    no it still goes into gear just fine and you can drive it around no problem. that's why i'm a little confused on whats going on.
     
  7. TUK101

    TUK101 Member

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    Check and make sure that the linkage to the clutch is not pinching a vacuum line either next to the manifold, or under the car where it pushes on the clutch arm. It could even be grounding a wire on the linkage.
     
  8. bartikus

    bartikus Member

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    i'm pretty sure that there are no vacuum lines running down by the linkage or any ground lines. but i will check.
     
    Last edited: Mar 9, 2009
  9. TUK101

    TUK101 Member

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    I read the original post before you edited it, and yes, if the smog lines are sucking air, it could possibly be causing your engine to die once it is up to temperature and the choke is off. Does it die on you cold too? I had an old F100 with a 302 in it do something similar once the smog pump was removed. You should have a line on the carburetor too that may need to be plugged off.
     
    Last edited: Mar 9, 2009
  10. bartikus

    bartikus Member

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    sorry i edited it it was late and wasn't thinking too much. no it starts doing it from start up has this hissing sound like a bearing is going out and you step on the clutch and the motor then proceeds to die. it's not a constant hissing sound kinda comes and goes then when you step on the clutch it becomes a constant hiss.
     
  11. brainsboy

    brainsboy Member

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    Input shaft bearing?
     
  12. bartikus

    bartikus Member

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    it doesn't have an imput shaft bearing it has a bushing and i replaced it when i put the motor in and greased it up nicely.
     
  13. PaulS

    PaulS Member extrordiare

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    If your engine will idle in neutral but dies when you push the clutch in the you have a wire or vacuum line that is being manipulated by the linkage, either under the dash or in the engine compartment.
     
  14. Bryant

    Bryant forgot more than learned

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    exactly how does the motor come to a stop?
    does it instantly stop like it gets locked up?
    does it stumble like runing out of gas, then die?
    does it turn off like when you turn the key off?
    if your giving it some gas, does that keep it going?
     
  15. bartikus

    bartikus Member

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    i would think that but it is making a hissing noise on and off and then when you push the clutch in the hissing sound goes constant and then the idle drops off and causes it to eventualy die.

    as you push on the clutch the idle drops and then it dies from idleing too low
    no it doesn't just stop like it's getting locked up
    it doen't stumlbe like it ran out of gas just the idle droping off too much to keep it going
    turns off when you turn the key off
    if you give it gas it does keep on going but like something is draging down the motor when the clutch is in that is
     

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