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  1. Join Date
    Jul 2006
    Posts
    145
    #1
    Hello, my car emits bluish smoke pag start then mawawala after few seconds. The manipis na usok will appear again only when you hardly rev the engine, pag idle wala usok kahit konti, malinis. Kinalas ko yung air passage assembly galing air cleaner para masilip ko yung loob ng mismong intake chamber. Ang tinutukoy ko po ay yung sa may trottle na, binuksan ko throttle by pulling then using flashlight nasilip ko yung loob ng intake chamber, malangis po sya. Isinoot ko rin ang daliri ko para kilatisin, napahid ko po ay malagkit na itim, oily nga sya.

    Saan po nanggagaling yung langis na anduon, i expect na dapat eh dumi or alikabok lang mapapahid ko dun sa loob kc air intake yun pero bakit po kaya oily? At ngayon, i conclude lang na baka kaya may manipis akong usok kc if that portion is oily, possible na mahigop yun oil na andun papuntang combustion chamber kaya uusok. Tama po ba ang analysis ko? Please advise naman po, ayaw ko po munang ipakalas at ipa overhaul ang makina ko kc ok naman po ang andar eh. Isa ko pang observation ay bumababa ang idle sa 800 rpm pag naka ON ang AC. 1000 naman po ang rpm pag idle..pino naman po ang takbo ng corolla gli 93 ko...malakas pa rin humatak....gas consumption is 13km/L using Vpower sa long drive, mga 9 to 10km/L naman po sa city. Aasahan ko po ang inyong comment ha mga experts.....mabuhay po kau.

  2. Join Date
    May 2007
    Posts
    2,328
    #2
    Kapag blue smoke usually unburned oil yan sa exhaust mo. Ang kadalasan na problema nito ay worn out ang Piston Ring, Cylinder Liner, Valve guides at iba pang mga components sa loob.

    Tama ang analysis mo. If your car emits bluish smoke kahit manipis lang ang usok at itoy nangyayari sa umaga well, RING na nga ang problema mo. Dahil pag park sa gabi, oil is seeping out in your engine pa unti-unti sa buong gabi and it burns off kapag start mo ang kotse sa umaga.. Hindi pa naman completely na sira, pero may tagas na at lalaki pa yan. Pa overhaul mo na bago sumuka ng mas makapal.

  3. Join Date
    Jul 2006
    Posts
    145
    #3
    V6, i am refering sa air intake chamber, that is ung chamber after the throttle. Bakit ang dumi nun malagkit na itim, tas nasilip ko and looks like malangis. If this portion is oily, i think hihigupin ito papuntang combustion chamber for Air+fuel mix, pero dahil malangis nga ang intake chamber ko baka kaya nalalngisan ang combustion chamber. Ang tanong, bakit malangis yung intake chmaber ko after the throttle? saan nanggagaling yun? malinis naman ang air filter ko...

  4. Join Date
    Oct 2006
    Posts
    352
    #4
    Tama c V6, piston ring na yan bro.. basta bluish smoke na ang lumabas, yun talaga ang tama nun. I encountered this sa galant ko nun..halos parehas tayo ng problema nun. top overhaul na ang ginawa

  5. Join Date
    Dec 2007
    Posts
    710
    #5
    Quote Originally Posted by mm15744 View Post
    Hello, my car emits bluish smoke pag start then mawawala after few seconds. The manipis na usok will appear again only when you hardly rev the engine, pag idle wala usok kahit konti, malinis. Kinalas ko yung air passage assembly galing air cleaner para masilip ko yung loob ng mismong intake chamber. Ang tinutukoy ko po ay yung sa may trottle na, binuksan ko throttle by pulling then using flashlight nasilip ko yung loob ng intake chamber, malangis po sya. Isinoot ko rin ang daliri ko para kilatisin, napahid ko po ay malagkit na itim, oily nga sya.

    Saan po nanggagaling yung langis na anduon, i expect na dapat eh dumi or alikabok lang mapapahid ko dun sa loob kc air intake yun pero bakit po kaya oily? At ngayon, i conclude lang na baka kaya may manipis akong usok kc if that portion is oily, possible na mahigop yun oil na andun papuntang combustion chamber kaya uusok. Tama po ba ang analysis ko? Please advise naman po, ayaw ko po munang ipakalas at ipa overhaul ang makina ko kc ok naman po ang andar eh. Isa ko pang observation ay bumababa ang idle sa 800 rpm pag naka ON ang AC. 1000 naman po ang rpm pag idle..pino naman po ang takbo ng corolla gli 93 ko...malakas pa rin humatak....gas consumption is 13km/L using Vpower sa long drive, mga 9 to 10km/L naman po sa city. Aasahan ko po ang inyong comment ha mga experts.....mabuhay po kau.
    hey bro, if the bluish/white smoke comes out of the exhaust after you start up the engine (and it goes away..), then you have a worn Valve Stem Seal and possible worn out Guides as well.

    also, those oil and sludge that you see in your Air Intake (mainly inside the Intake Manifold) are from the Crankcase. and those oil residue on your Intake is pretty normal since that those are excess oil pressure / fumes that is vented from the crankcase, and probably got accumulated in the Intake coz of high engine mileage.

    anywayz, check if the PCV (Positive Crankase Ventilation) valve if its dirty or clogged up, then replace it if needed.


    aite, peace.

  6. Join Date
    Jul 2006
    Posts
    145
    #6
    kbr, emong, thanks sa inputs nyo. But if you listen and drive my car, top overhaul looks like not yet needed. Ang lakas humatak ng car, my last sp plug last for 4 years walang palitan di man lang napundi,pero nagpalit na ko last christmas kahit di pa rin pundi. Mga tropa drove it and my car earned lots of papuri sa lakas ng makina at very responsive daw, at ang kinis daw ng tunog. Sabi nga ni mrs ko, ako lang daw etong masyadong namomroblema. Sa pagbabasa ko d2 sa thread sabi nga anything like this (very manipis na bluish smoke at very high rev and at start up) is not normal in which i agree.

    So ganito ginawa ko i-update ko lang kayo. I went to a reputable shop d2 sa lugar namin, they are group of toyota mechanics (from TOYOTA) na nagtayo ng sarili nilang talyer (5 years in operation na sila), they are known good talyer for toyota engines.

    I brought my car, the owner said..."normal lang yan sa mga gli...basta nawawala pag mainit na, dont much worry about it. DI yan basta masisira corolla gli yan eh, matibay yan" sabi sa kin. Then i personally ask the mechanic, he inspect the new spark plugs and also my old spark plugs which i kept. He told me, looks like your valve seal is deterioated a bit but tolerable. Sabi nya possible na your seals get expanded pag umiinit na kaya nawawala smoke after few seconds na start na ang engine. Hindi pa daw nagpupundi ng sp plug yung makina ko kc mild pa lang daw yung problem ng valve seal, he also commented, it is also possible na wala sa timing yung engine kaya di nasusunog lahat ng gas. Tiniming nila yung engine, may nilagay na jumper sa diagnosis (connectado yata yun sa computer box)..then tune up tune up nila, inikot ikot ang distributor while diagnosis sockets has jumper, ito yung nasa instruction sa ilalim ng hood ng kotse..

    Kaninang umaga, i start my engine...wala na syang smoke at start up...subukan ko mamaya i-hi rev kung may smoke pa. i drove for few meters, mas lalong gumada andar after ma tune up.

    KBR, ano itsura nung PCV? pwede ko bang i DIY ito? Yun din sabi ng mechaniko rgding intake oil residue, ganun daw talaga yun galing daw kc sa case sa ibabaw.

  7. Join Date
    Dec 2007
    Posts
    710
    #7
    Quote Originally Posted by mm15744 View Post
    kbr, emong, thanks sa inputs nyo. But if you listen and drive my car, top overhaul looks like not yet needed. Ang lakas humatak ng car, my last sp plug last for 4 years walang palitan di man lang napundi,pero nagpalit na ko last christmas kahit di pa rin pundi. Mga tropa drove it and my car earned lots of papuri sa lakas ng makina at very responsive daw, at ang kinis daw ng tunog. Sabi nga ni mrs ko, ako lang daw etong masyadong namomroblema. Sa pagbabasa ko d2 sa thread sabi nga anything like this (very manipis na bluish smoke at very high rev and at start up) is not normal in which i agree.

    So ganito ginawa ko i-update ko lang kayo. I went to a reputable shop d2 sa lugar namin, they are group of toyota mechanics (from TOYOTA) na nagtayo ng sarili nilang talyer (5 years in operation na sila), they are known good talyer for toyota engines.

    I brought my car, the owner said..."normal lang yan sa mga gli...basta nawawala pag mainit na, dont much worry about it. DI yan basta masisira corolla gli yan eh, matibay yan" sabi sa kin. Then i personally ask the mechanic, he inspect the new spark plugs and also my old spark plugs which i kept. He told me, looks like your valve seal is deterioated a bit but tolerable. Sabi nya possible na your seals get expanded pag umiinit na kaya nawawala smoke after few seconds na start na ang engine. Hindi pa daw nagpupundi ng sp plug yung makina ko kc mild pa lang daw yung problem ng valve seal, he also commented, it is also possible na wala sa timing yung engine kaya di nasusunog lahat ng gas. Tiniming nila yung engine, may nilagay na jumper sa diagnosis (connectado yata yun sa computer box)..then tune up tune up nila, inikot ikot ang distributor while diagnosis sockets has jumper, ito yung nasa instruction sa ilalim ng hood ng kotse..

    Kaninang umaga, i start my engine...wala na syang smoke at start up...subukan ko mamaya i-hi rev kung may smoke pa. i drove for few meters, mas lalong gumada andar after ma tune up.

    KBR, ano itsura nung PCV? pwede ko bang i DIY ito? Yun din sabi ng mechaniko rgding intake oil residue, ganun daw talaga yun galing daw kc sa case sa ibabaw.
    nice! buti nalang na dinala mo sa isang reputable na shop na expert sa Toyota! at tama naman ang sinabi nila

    also, the PCV valve is located by the Valve Cover. parang air tube lang ito na may bulitas sa loob, diyan kasi dumadaan ang ang hangin (crankcase pressure) mula sa loob ng makina. anywayz, malalaman mo na stuck-up na ang PCV pag hindi gumagalaw ang bulitas sa loob. pwedeng palitan to ng bago, or linisan mo (using a carb or brake cleaner *if theres available* or simply clean it by dipping it in gasoline <-- Philippine style!! hehehe)


    aite, peace.

  8. Join Date
    Dec 2007
    Posts
    710
    #8
    heres some helpful links about your vehicles PCV system:

    http://www.tegger.com/hondafaq/pcv-replace/index.html

    http://en.wikipedia.org/wiki/PCV_valve


    aite, peace.

  9. Join Date
    Oct 2002
    Posts
    13,415
    #9
    Why not just do a compression test?

  10. Join Date
    Jul 2006
    Posts
    145
    #10
    KBR, many thanks for the very helful links. I am eager to replace my PCV now. Bakit ang tigas tigas nung hose ko, dahil ba sa katagalan na? Looks like mura lang naman itong PCV, papalitan ko na ito. Tama nga yung nasa link na sabi ay prone mag clog yung pag short trips at madalang patakbuhin ang car, so possible clog nga ung sa ken kc madalang ko gamitin yung car, short trips pa (12 km a day lang tapos 3 times a week ko lang ginagamit kotse).

    Theveed, i have no idea kung ano ung compression test? Ano ba giagawa sa ganung test?, may instrumento ba na kinakabit?

  11. Join Date
    Oct 2006
    Posts
    352
    #11
    Quote Originally Posted by KBR View Post
    heres some helpful links about your vehicles PCV system:

    http://www.tegger.com/hondafaq/pcv-replace/index.html

    http://en.wikipedia.org/wiki/PCV_valve


    aite, peace.
    KBR, very useful nga yung link mo. i was also thinking of changing my pcv now. thanks for the link

  12. Join Date
    Dec 2007
    Posts
    710
    #12
    Quote Originally Posted by mm15744 View Post
    KBR, many thanks for the very helful links. I am eager to replace my PCV now. Bakit ang tigas tigas nung hose ko, dahil ba sa katagalan na? Looks like mura lang naman itong PCV, papalitan ko na ito. Tama nga yung nasa link na sabi ay prone mag clog yung pag short trips at madalang patakbuhin ang car, so possible clog nga ung sa ken kc madalang ko gamitin yung car, short trips pa (12 km a day lang tapos 3 times a week ko lang ginagamit kotse).

    Theveed, i have no idea kung ano ung compression test? Ano ba giagawa sa ganung test?, may instrumento ba na kinakabit?

    hey bro, no problem. also, yung hose sa intake (or any hose (vacuum hose) sa engine) ay talagang titigas over time, mainly due to heat. also, about the Compression Test. you have to take off all of the Spark Plugs and screw a Compression Tester (or a pressure guage) on each of the Spark Plug hole. pero ginagawa to one by one, and you have to crank the engine at least 5-8 seconds so that you could get an accurate reading.

    anywayz, I think you dont need to do a Compression Test since na malakas pa naman ang takbo ng Corolla mo. pag humahatak pa naman and hindi nag mi-miss fire ang makina, then it should be good. but you can still do a Compression Test para lang to make sure and for peace of mind.


    aite, peace.

  13. Join Date
    Nov 2003
    Posts
    3,848
    #13
    probably valve seals nga...

  14. Join Date
    Jul 2006
    Posts
    145
    #14
    wala na pong manipis na asul na usok ang corolla ko now after tune-up and PCV valve cleaning.
    Isang tanong na lang po, yung hose ng PCV valve ko eh antigas na, pede ko ba palitan yun ng fuel hose lang? kaya kayang i-resist ng rubber fuel hose yung temp ng air na nagfoflow dun sa PCV valve? ang mura kc ng fuel hose eh, P30 per foot. need ko lang eh mga 3/4 foot. Please advise po, maraming salamat.

  15. Join Date
    Dec 2007
    Posts
    710
    #15
    Quote Originally Posted by mm15744 View Post
    wala na pong manipis na asul na usok ang corolla ko now after tune-up and PCV valve cleaning.
    Isang tanong na lang po, yung hose ng PCV valve ko eh antigas na, pede ko ba palitan yun ng fuel hose lang? kaya kayang i-resist ng rubber fuel hose yung temp ng air na nagfoflow dun sa PCV valve? ang mura kc ng fuel hose eh, P30 per foot. need ko lang eh mga 3/4 foot. Please advise po, maraming salamat.
    hey bro, thats good na ayos na din ang problem mo! also, pwedeng pwede din ang Fuel hose for use in Vacuum. at di naman masyadong mataas ang air pressure and temperature na lumalabas sa PCV, also oil resistant din ang Fuel hose kaya ok lang yun para sa PCV.


    aite, peace.

  16. Join Date
    Nov 2003
    Posts
    3,848
    #16
    normally the pcv hose is preshaped since may mga liko sila. if you use a regular fuel hose it might kink where the hose turns causing the hose diameter to get smaller in some areas which is not good.

  17. Join Date
    Jul 2006
    Posts
    145
    #17
    nakabitan ko na po ang bagong hose ng PCV valve, pwede naman po putulan kaya wala po sa syang kink, nailagay po ng maayos kc madali lang po putulin yung fuel hose at maiayos ang liko.

  18. Join Date
    Dec 2007
    Posts
    710
    #18
    Quote Originally Posted by mm15744 View Post
    nakabitan ko na po ang bagong hose ng PCV valve, pwede naman po putulan kaya wala po sa syang kink, nailagay po ng maayos kc madali lang po putulin yung fuel hose at maiayos ang liko.
    thats good to hear bro!


    aite, peace.

  19. Join Date
    Oct 2003
    Posts
    734
    #19
    hindi ko sana basahin tong thread na ito dahil akala ko hose lng yan pcv na pinaguusapan nyo valve pala yun at malaki pala epekto neto sa takbo ng oto.

    it really got interesting when KBR made those simple but very useful explanations on what it is lalo na posted those links which are very helpful and napakaganda ng explanation pang dummies talaga hehe.

    sir KBRmay techniques pa ba sa pagtangal nyan valve na yan o hinuhugot nlng? also, yun pcv na yan napansin ko sa oto ko pareho ng itsura dito sa picture ay nakalagay sa ibabaw ng intake manifold ba tawag dun carb type ksi akin---eto yun metal na in between ng carb at engine block tama ba? eto na kaya yun parehong pareho ksi ng itsura dito sa pic ng link thnx!

  20. Join Date
    Nov 2003
    Posts
    3,848
    #20
    good it's fixed na!

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what is causing this?