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Verified Tsikot Member
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- Jul 2003
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December 3rd, 2007 09:05 PM #1Hello,
meron po ako 2001 Rav4. may lumalabas na thick white smoke every 1st start and 1st 10 seconds of idle ng engine.
Parang burned oil ang amoy at makapal na usok.
Pero after 10 seconds ok na,wala na usok kahit patayin ko pa then start uli after several hours ok na.
Pero once gamitin ko sya the whole day, ganun nanaman kinabukasan pag start ko uli usok nanaman
Anyone encountered the same problem?
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December 3rd, 2007 09:12 PM #2
For gasoline car IMO is normal coz cold start nga po,malamig pa engine and pag uminit na eventually wala na rin yung smoke.Black smoke naman po kasi for diesel if may problem.
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Verified Tsikot Member
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December 3rd, 2007 09:22 PM #3
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December 4th, 2007 01:34 AM #4
Its possible that oil can enter the combustion chamber at starts ups because walang pang heat and pressure to push the piston rings against the cylinder walls. Parang what happens to firecrackers pag suppot. While the engine gets older a tight seal loosens and eventuially leads to blow by. Remember also that cold engine burns richer fuel to attain NOT then leans when it does.
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December 4th, 2007 02:02 AM #5
this is just normal for morning start ups for the engine...
no problem at all..
* monsricks black smoke for diesel engines are normal too.. wag lang yung bluish white na usok, medyo hindi na maganda yun..
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Tsikot Member Rank 5
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December 7th, 2007 07:52 AM #7
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August 9th, 2009 12:52 AM #8
white smoke = condensate that is accumulated in the exhaust that vaporizes again once hot air flows through. I think this happens because the engine cools slower thus cold air move thru the exhaust system thru convection. During the process, some water vapor is trapped inside the exhaust system and then expelled when the engine is running. Just my opinion
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