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Thread: cylinder 2 misfire city 1999

  1. #1
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    Default cylinder 2 misfire city 1999

    Solved...

    Aoa members and @Xufiqar i m facing serious problem ... cylinder misfire severlely at cold and reduce misfiring at hot ..misfire can b feeel throgh silencer phuk phuk phuk .. all 3 cylinder loose power on removing wires but cylinder 2 does not loose power specially at cold ... i checked wire spark is coming to cylinder 2 ... misfire happnd at petrol and cng ..i checked wire by exchanging cylinder wires(with correct firing order) cylinder 2 still misfires

    i m considering following problem plz rectify them

    1) valve stuck
    2) ignition coil or rotor + cap
    3) plugs (but plugs were cleaned and i dont know internal resistance would b ok or not)
    @Xulfiqar ur meaningful opinion is required


    Update:
    Most if Mechanuc suggested head work is required . I was indulge with disappointment n did valve clearance but it didnt solve problm so ..... wuth a last hope changed plugs with new one and problem was solved till now
    Thanks to allah n all of u

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    i think you should still try a new plug.

    for a stuck valve, a compression test might be helpful
    haters gonna hate, potatoes gonna potate

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    Quote Originally Posted by margallar View Post
    i think you should still try a new plug.

    for a stuck valve, a compression test might be helpful
    could it be valve clearance too ?

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    maybe, but i don't think it is likely
    haters gonna hate, potatoes gonna potate

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    according to you:
    1.sparks=ok
    2.fuel=ok
    then most probably a valve is being stuck or head gasket is leaking at cyl 2 causing the plug to be shorted.(post the pics of the sparkies)
    when did you last time adjusted the valve clearance??is your car smoking???reducing coolant??
    Just Do It Your Self!!!!!

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    Default

    Quote Originally Posted by searchingeyez View Post
    Aoa members and @Xufiqar i m facing serious problem ... cylinder misfire severlely at cold and reduce misfiring at hot ..misfire can b feeel throgh silencer phuk phuk phuk .. all 3 cylinder loose power on removing wires but cylinder 2 does not loose power specially at cold ... i checked wire spark is coming to cylinder 2 ... misfire happnd at petrol and cng ..i checked wire by exchanging cylinder wires(with correct firing order) cylinder 2 still misfires

    i m considering following problem plz rectify them

    1) valve stuck
    2) ignition coil or rotor + cap
    3) plugs (but plugs were cleaned and i dont know internal resistance would b ok or not)

    @Xulfiqar ur meaningful opinion is required
    swap the #2 injector with #3 and test again
    https://www.facebook.com/OsamaAbbasPhotography

  7. #7
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    Default

    this is a class symptom of no valve clearance on one valve in that cylinder, check it and adjust,
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by umarkhan1 View Post
    according to you:
    1.sparks=ok
    2.fuel=ok
    then most probably a valve is being stuck or head gasket is leaking at cyl 2 causing the plug to be shorted.(post the pics of the sparkies)
    when did you last time adjusted the valve clearance??is your car smoking???reducing coolant??
    I adjusted the valve 25 days ago......

    It became headache for me...mechanic swappd n chkd plugs but he said plygs are ok no coolant reduce or smoke however phuk phuk

  9. #9
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    Quote Originally Posted by Xulfiqar View Post
    this is a class symptom of no valve clearance on one valve in that cylinder, check it and adjust,
    Xulfiqar plz guide me abt no clearance ..i cant understand term no clearance ? However what i take Clearance is the height from cam to valve when valve are lift at top .......mechanic set 0.008in intake n 0.009in exhaust 25 days before

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    Default

    Quote Originally Posted by searchingeyez View Post
    Xulfiqar plz guide me abt no clearance ..i cant understand term no clearance ? However what i take Clearance is the height from cam to valve when valve are lift at top .......mechanic set 0.008in intake n 0.009in exhaust 25 days before
    go to some other mechanic.and do it on a dead cold engine.
    Just Do It Your Self!!!!!

  11. #11
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    Yeaah i have to clear this issue till tommorow ... have to travel lhr

  12. #12
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    Default

    New plugs solved the prob ...spark plug sign was ok but it was nt wrking correcly may be..... so changing plugs solved the prob

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