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lexus GS 2013 GDI smoke ???!!

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3 years 8 months ago #42805 by Door_mech
lexus GS 2013 GDI smoke ???!! was created by Door_mech
hi i have one of my friend car smoking only at the start up stay smoking for seconds ??!!!
notes its smoke more when we have full tank ??!!
when the tank is all most empty its do nothing ? i tried everything i know according to what i know :) any one can help ???

by the way it white smoke !!
I got no codes also

car idling normal

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3 years 8 months ago #42835 by Hardtopdr2
Replied by Hardtopdr2 on topic lexus GS 2013 GDI smoke ???!!
This sounds like a few possibilities

1. Head gasket leak so it would smoke briefly till fluid is burned of or expelled on exhaust stroke. Does tail pipe fumes smell sickly sweet?

2. High pressure fuel pump (if equiped) leaking oil through pump diaphragm. Unlikely but possible...

3. Valve stem oil seals going bad/ valve guides worn out. Drips oil onto valve and into cylinder burning off on start up.

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