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The mkiv Supra Owners Club

odd smoke from exhaust


Gar_GT4

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this is going to be a bit hard to explain but here i go...have a tt supra with very few mods, double decats, exhaust and intercooler. the car has 114k km on the clock. i service it reguarly using millers 5w40 oil and i always warm it up and leave it a minute on the turbo timer.

 

over the last 6 months or so ive gotten puffs of blue smoke from the exhaust. the weird thing is it might only happen once every 10 times i drive it and doesnt happen at any particular time...once was when i was pulling away hard, once was just driving normally around town, once was slowing down for a roundabout and the most recent was sitting in traffic where i could see and smell the smoke coming out and it only did it for about 10 seconds then cleared up. there is a big period of time between these incidents aswell. since then it hasnt happened since. it coming up for a service now and it hasnt used a bit of oil...still full and clean...i havent looked into it yet so i thought id ask to see maybe it could be a breather problem hopefully. thanks

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this is going to be a bit hard to explain but here i go...have a tt supra with very few mods, double decats, exhaust and intercooler. the car has 114k km on the clock. i service it reguarly using millers 5w40 oil and i always warm it up and leave it a minute on the turbo timer.

 

over the last 6 months or so ive gotten puffs of blue smoke from the exhaust. the weird thing is it might only happen once every 10 times i drive it and doesnt happen at any particular time...once was when i was pulling away hard, once was just driving normally around town, once was slowing down for a roundabout and the most recent was sitting in traffic where i could see and smell the smoke coming out and it only did it for about 10 seconds then cleared up. there is a big period of time between these incidents aswell. since then it hasnt happened since. it coming up for a service now and it hasnt used a bit of oil...still full and clean...i havent looked into it yet so i thought id ask to see maybe it could be a breather problem hopefully. thanks

 

A little bit of oil makes a lot of smoke, you'd have to have a serious oil leak for it to show a change in level on the dip stick. I'd say turbo seal as VSS would be on start up as previously mentioned. Do you use it regularly ? How long does it stand in between uses ?

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It never does it on start up...even with the colder weather...I drive it maybe 3 times a week and the round trip into work would be about 60 miles. ..been driving it more now just to see and hasnt happened...been told it could be little valve on the breather system

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It never does it on start up...even with the colder weather...I drive it maybe 3 times a week and the round trip into work would be about 60 miles. ..been driving it more now just to see and hasnt happened...been told it could be little valve on the breather system

 

Pretty much rules out the valve stem seals if no smoke on start up

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