Smoking habit
Smoking habit
My IS200 has a nasty habit of letting out a puff of smoke after being sat for a while. When driving around (and nailing it to redline) there is no smoke at all, but after it has been sat without starting for a day or so, there is a puff on startup.
Any suggestions what it could be?
Thanks!
speedfreek
05-07-2018, 12:17 PM #1Hi guys,
My IS200 has a nasty habit of letting out a puff of smoke after being sat for a while. When driving around (and nailing it to redline) there is no smoke at all, but after it has been sat without starting for a day or so, there is a puff on startup.
Any suggestions what it could be?
Thanks!
ian you beat me to it
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is300_dino
05-07-2018, 12:20 PM #3what colour is the smoke? blue or grey?
ian you beat me to it
jae 2010 best lexus category show and shine winner
jae 2010 ice outlaw award 2nd place
jae 2011 ice outlaw award 1st place
I'll be honest I have done a little research already and found it may be either valve stem seals or PCV valve.
Wouldn't a valve stem seal problem manifest itself more often than just a cold start?
speedfreek
05-07-2018, 12:22 PM #4Blue - definately oil.
I'll be honest I have done a little research already and found it may be either valve stem seals or PCV valve.
Wouldn't a valve stem seal problem manifest itself more often than just a cold start?
If it is blue, that is oil in the combustion chamber. a head gasket could do that in the right situation but so could a failed valve stem guide/seal.
Take the oil cap off and see if the underneath is clean also check the water bottle either could have sludge in this would point more to a gasket.
Have you checked your oil dipstick level first, could it have to much oil in?
If it is blue, that is oil in the combustion chamber. a head gasket could do that in the right situation but so could a failed valve stem guide/seal.
Take the oil cap off and see if the underneath is clean also check the water bottle either could have sludge in this would point more to a gasket.
If the coolant / oil cap is clean and the oil levels are good - would disconnecting the PCV overnight after a drive prove / disprove that it is the valve stems?
I guess if the head will have to come off for the valve stem seals to be replaced, may as well do the head gasket at the same time.
speedfreek
05-07-2018, 12:44 PM #8Thanks guys - will give all suggestions a bash.
If the coolant / oil cap is clean and the oil levels are good - would disconnecting the PCV overnight after a drive prove / disprove that it is the valve stems?
I guess if the head will have to come off for the valve stem seals to be replaced, may as well do the head gasket at the same time.
I would do these simple tasks before I start to worry.
I had this once on a old Carina, if i parked downhill it would start up with a puff, if I parked uphil no problem.
Sometimes it is easier to leave things as they are, what harm is one little little puff causing? think of the expense and other problems you could cause.
Give the pcv a good spray with carb cleaner, then an oil change, might be worth trying a different brand of oil.
I would do these simple tasks before I start to worry.
I had this once on a old Carina, if i parked downhill it would start up with a puff, if I parked uphil no problem.
Sometimes it is easier to leave things as they are, what harm is one little little puff causing? think of the expense and other problems you could cause.
...... no need to worry!
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Tinted Glass-Sports Grill-Debadged-TTE Spoiler-TTE Lowering Springs-PLUK Kazama Exhaust-18" Aero Alloys-K&N Air Filter-Denso Iridium Power Spark Plugs-Quad Tail Light Conversion-6000K HID-X-White High Beam-6 LED Sidelights-Quad LED Boot Light-JDM OEM Smoked Front Fogs-JDM Blue Reverse Bulbs-LS430 Smoked Side Repeaters-6 LED Side Repeaters-Chrome Indicator Bulbs-Alpine HU-Rear Headrest Monitors-PIAA Super Sporza-Fan Washer Jets-Lex Tax Disc Holder-Chrome Gear Knob-2003 Cup Holder-Toyo Proxes T1-R
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