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Need some more help.

Discussion in 'Diagnosis/Help' started by 86CelicaGT-S, Jan 3, 2009.

  1. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Problem 1. Okay well I installed a new clutch slave cylinder today and attempted to bleed it. I bled it until there were no more air bubbles but when I depress the clutch pedal it'll come back up but quite slowly and not all the way to the top. I'm confused.

    Problem 2. After installing the new slave cylinder and doing an oil change I tried starting it up; it hesitated but eventually started - that's fine. But again once it started it made a horrendous whining sound (even louder this time) but slowly toned down. The engine then stared to run very weird. It would CONSTANTLY drop by 500rpms and then go up by 500rpms etc etc. So after those 2 things I just turned it off - feared I was about to fuck the engine up or something.

    Any help would be greatly appreciated. I've got school on Monday so I am really hoping to get my car running by then.

    Thanks.

    -Tanner.
     
  2. mephtar

    mephtar Well-Known Member

    make sure the oil lvl is good, you shoudl always fill the oil filter with oil prior to start up too.

    Try bleeding somemore, make sure you do it correctly. you maybe have to adjust it fowards or backwards?
     
  3. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    The oil lvl is good. To bleed it I pumped the pedal 5 times and then kept it depressed and then opened the bleed valve. I did this until no air bubbles showed up in my jar (had clear tubing going from bleed valve to a jar filled half way with fluid).
     
  4. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    ^Do you have a one man bleed kit or just doing it by yourself?

    The fluctuating revs thing is weird. Did you possibly bump something or lean on the AFM box? The connector is sensitive.

    I had my revs do that once and it was a loose vacuum hose I knocked off.
     
  5. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Well I just have a tube going into a jar to collect the fluid that's being bleed and my brother is the one pumping the pedal. Hmm I didn't touch the AFM but that could be it.
     
  6. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    If the clutch pedal doesn't return all the way to the top, you may still need to bleed some more (given that all else is OK).
    I don't want to insult your skills, but you said you were a bit confused, so are you bleeding the clutch like this:

    Cover bleeder screw with snug fitting hose and the bottom end is fully submerged in clutch fluid
    1) open clutch bleeder valve a 1/4 turn or so
    2) someone depresses the clutch pedal and holds it down (if it comes up, it'll suck more air into the system)
    3) tighten the bleed valve
    4) allow pedal up again
    5) repeat
    *Keep an eye on the clutch master cylinder reservoir. If you let the fluid go down to the bottom, air will get in and you'll have to start all over.

    The other easy solution is there is simply more air remaining in the system or in a pocket up the line. Five pumps of the pedal is not a whole lot; in fact, I've never bled my clutch or brakes with only 5 pumps :!:
     
  7. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Lol it's okay to insult my skills. The way I was doing is how it says in the manual.

    1.clear tubing over plug and over end in a jar of fluid.
    2. bleed valve closed.
    3. pump the clutch pedal 5 times and on the last pump hold the pedal down to the floor.
    4. then open the bleed valve and bit to let the air/fluid run out.
    5. continued steps 2-4 multiple times.
     
  8. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    OK, sounds good. I'd just try it again to ensure all air is out. Which book are you going with, the Haynes?
     
  9. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Hmm I'll try again, but your way instead. I got it from the BGB.
     
  10. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    I forgot to type pump the pedal a few times, so it's pretty much the same. Where did you score your BGB from, Ebay?
     
  11. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Well actually Jon (Celic-GT2) sent me a photocopied copy via MSN. :mrgreen:
     
  12. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    ^That works and it's free :mrgreen:
     
  13. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

  14. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    This is from 'LegacyofDan' over at http://www.alltrac.net
    I thought it might help you with your idle problem:

     
  15. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    hmm sweet I'll check that out while I attempt to bleed the clutch again. So I open the bleed valve a bit and then pump it a few times and then close it?
     
  16. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    ^No, keep the pedal depressed, if you allow it up while the valve is open, you'll draw air back up into the system.
    Close the bleed screw before you allow the pedal up. I hope I didn't confuse the issue; both methods are essentially the same :)
     
  17. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Oh okay I got it now. I'll go do that and see what happens.

    Oh and that picture you posted, well mine was somewhat like that. The hose coming out the back of the MAF was a bit off so I pushed it back on/ tightened it. Though when I tried starting it it did that weird rpm drop and rise but only did it twice and ran normally after that so thanks for that picture/advice.
     
  18. Rick89GTS

    Rick89GTS Well-Known Member Moderator Donated!

    ^You're welcome, glad I could help you out :mrgreen:
     
  19. 86CelicaGT-S

    86CelicaGT-S Well-Known Member

    Okay so I bled the system again and the pedal does release by itself now so thats all good. But now I've noticed that the pedal is very "soft" when pressing it in. Any ideas? It was never a hard clutch pedal to push in the beginning but now it just seems softer.

    Edit: I did take the car out for a spin on the highway and I am able to shift it so I atleast know the clutch works.
     

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