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  1. Join Date
    Nov 2006
    Posts
    60
    #1
    Peeps, ano po kaya culprit pag tnatapakan ko clutch, may parang sound ng air brake na maririnig galing sa engine. parang squeaking noise na sinabayan ng hangin.... wala naman effect sa driving pati sa shifting ng gear.. nakakairita lang pakinggan yung tunog although maririnig lang nman pag nagddrive ng bukas yung window... problem kaya to sa clutch?

    thanks in advance...

  2. Join Date
    May 2007
    Posts
    2,328
    #2
    Youve got a turbo, sounds like there might be a small hole that is opening up when you depress your pedal and letting a small amount of air in it. Or does it make the same sound at low speeds? Try listening at 2 vary different speeds and seeing if they sound alike or different. Or could have been a vacuum leak or hydraulic fluid leak(see if fluid okey or leaking down onto the pedal ).

  3. Join Date
    Jan 2009
    Posts
    6,455
    #3
    If the noise is only heard when you depress the clutch and disappears when you release it, I'm almost certain that it's a bad pilot bearing.

  4. Join Date
    Dec 2008
    Posts
    181
    #4
    I experienced exactly the same thing. It's the clutch release bearing. Lalakas ng lalakas tunog niyan. Tapos unt-unti, magkakaroon na ng shudder. Finally, one day your clutch just won't release when you change gear. You can still shift because you can still depress the clutch. But when you lift your foot from the pedal, hindi sasama pabalik. You have to pump it up and down to make it release. At pag nag release, bigla yung jolt.

    Better have it checked now before it damages your pressure plate. Yung sa akin kasi okay pa sana yung pressure plate at saka kapal pa ng clutch disk. Pero yung gitna ng pressure plate na tumatama doon sa bearing napudpod kasi ayaw na nga sumama paikot noong bearing.

    Most likely cause niyan is water that seeped into your bell housing. Yung sa akin kasi ilang beses na nagri-river crossing.

  5. Join Date
    Nov 2006
    Posts
    60
    #5
    thanks sa mga reply peeps.. actually ganun nga yung prob.. maririnig yung tunog pag tnatapakan yung clutch then nawawala pag bitaw. another weird sound na naririnig ko, pag tnatapakan yung clutch may squeaking sound galing sa pedal, pero nung pinatingin ko sa mechanic, he just sprayed wd40 somewhere dun sa end ng pedal, nawala na.. then after a week bumalik nanaman.. but what made it weird is minsan wala yung squeak, minsan meron.. related din kaya to sa mga possible culprits na namention nyo above?

  6. Join Date
    Jan 2009
    Posts
    6,455
    #6
    Quote Originally Posted by wickednasty View Post
    thanks sa mga reply peeps.. actually ganun nga yung prob.. maririnig yung tunog pag tnatapakan yung clutch then nawawala pag bitaw. another weird sound na naririnig ko, pag tnatapakan yung clutch may squeaking sound galing sa pedal, pero nung pinatingin ko sa mechanic, he just sprayed wd40 somewhere dun sa end ng pedal, nawala na.. then after a week bumalik nanaman.. but what made it weird is minsan wala yung squeak, minsan meron.. related din kaya to sa mga possible culprits na namention nyo above?
    Yup, mukhang pilot bearing/bushing nga.

    WD40 is not meant for long-term lubrication... it is used primarily to displace water and as a penetrant to dislodge stuck metal items like tools, hinges, nuts & bolts, etc. WD40 only leaves a light lubricant and it easily dries up. Use silicon spray or grease instead.

  7. Join Date
    Jan 2009
    Posts
    6,455
    #7
    Quote Originally Posted by FWC View Post
    I experienced exactly the same thing. It's the clutch release bearing. Lalakas ng lalakas tunog niyan. Tapos unt-unti, magkakaroon na ng shudder. Finally, one day your clutch just won't release when you change gear. You can still shift because you can still depress the clutch. But when you lift your foot from the pedal, hindi sasama pabalik. You have to pump it up and down to make it release. At pag nag release, bigla yung jolt.

    Better have it checked now before it damages your pressure plate. Yung sa akin kasi okay pa sana yung pressure plate at saka kapal pa ng clutch disk. Pero yung gitna ng pressure plate na tumatama doon sa bearing napudpod kasi ayaw na nga sumama paikot noong bearing.

    Most likely cause niyan is water that seeped into your bell housing. Yung sa akin kasi ilang beses na nagri-river crossing.
    The main symptom of a bad release bearing is if the noise is heard while the clutch pedal is released (clutch plate is engaged). I think the OP experienced the opposite problem, in that, the noise only happens when the clutch pedal is depressed (clutch plate is disengaged).

    While the clutch pedal is depressed, the release bearing is not rotating with the engine, so I think it's unlikely that the release bearing is causing the noise.

  8. Join Date
    Nov 2006
    Posts
    60
    #8
    im quite positive na naririnig yung sound when disengaging the clutch (pedal pressed). kasi nung first time ko narinig to was when shifting to neutral to do a full stop. but i dont get to experience shuddering when accelerating from a full stop. just the same, when disengaging the clutch to shift to 1st gear, andun nanaman yung tunog... badly need to have this fixed kasi medyo nakakaparanoid gamitin yung kotse sa long drive. laguna to qc pa naman ako madalas. yoko ma-tow or makadagdag ng traffic sa edsa pag nagkataon.. hehe

    may mairerecommend ba kayo na magaling na repair shop for this? preferrably sa south pero ok lang rin kahit sa north...

    much thanks to everyone who replied...

  9. Join Date
    Dec 2008
    Posts
    181
    #9
    Quote Originally Posted by oj88 View Post
    The main symptom of a bad release bearing is if the noise is heard while the clutch pedal is released (clutch plate is engaged). I think the OP experienced the opposite problem, in that, the noise only happens when the clutch pedal is depressed (clutch plate is disengaged).

    While the clutch pedal is depressed, the release bearing is not rotating with the engine, so I think it's unlikely that the release bearing is causing the noise.
    When you depress the clutch, the bearing should actually spin together with the center of the pressure plate. If it is worn out and does not spin properly, it wears out the diaphragm spring in the center of the pressure plate.

    Here's a description from "How Stuff Works":

    "Another problem associated with clutches is a worn throw-out bearing, sometimes called a clutch release bearing. This bearing applies force to the fingers of the spinning pressure plate to release the clutch. If you hear a rumbling sound when the clutch engages, you might have a problem with the throw-out.


    [SIZE=+1]Clutch Diagnostic Test[/SIZE]
    [SIZE=-1]If you find that your clutch has failed, here is an at-home diagnostic test that anyone can perform:[/SIZE]
    1. [SIZE=2]Start your car, set the parking break, and put the car in neutral. [/SIZE]
    2. [SIZE=2]With your car idling, listen for a growling noise without pushing the clutch in. If you hear something, it's most likely a problem with the transmission. If you don't hear a noise, proceed to step three.[/SIZE]
    3. [SIZE=2]With the car still in neutral, begin to push the clutch and listen for noise. If you hear a chirping noise as you press, it's most likely the clutch release, or throw-out bearing. If you don't hear a noise, proceed to step four.[/SIZE]
    4. [SIZE=2]Push the clutch all the way to the floor. If you hear a squealing noise, it's probably the pilot bearing or bushing.[/SIZE]
    [SIZE=2]If you don't hear any noise during these four steps, then your problem is probably not the clutch. If you hear the noise at idle and it goes away when the clutch is pressed, it may be an issue in the contact point between the fork and pivot ball.[/SIZE]


  10. Join Date
    Jul 2010
    Posts
    2
    #10
    guys need help... ung mitsubishi 98 ko kpag tinapakan un clutch wla ganit,, tpos ndi mo maishift sa 1st gear... nagawa n dti un ng mechanic ko tpos after 1 month bumalik n nmn ung cra,,, ung spring po ang pinalitan dun.. 650 nga eh almost 1k din ngastos ko.. ang masama p n2 inabot ako sa daan ng cra. trffic nsa neutral ako tpos go n hindi ko maishift sa 1st gear... anu po kya cra nun.. pero kpag binomba ko ung clutch bumabalik nmn. buti d ako inabot sa slex.... knakbahn n ko gamitin un car ko... pls reply pipz... godbless

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clutch problem?