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smoke!!


intern8tion9l

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Posted

yeah so heres the latest: when i let the car idle to warm up, it starts blowing out clouds of smoke. also when i downshift and i'm coasting in low gear/higher rpm (say an exit ramp) a cloud of smoke will start puffing out. this thing is really starting to get to me and its like every time there is something new its something wierd that i don't know about

Posted

It's most likely a turbocharger oil seal leaking(bluish colored smoke). If you find oil in your intercooler charge pipes, the cold side/compressor seal is leaking, if the pipes are clean, it's going to be a turbine side seal. Check the TGP section and/or the TGP board, there have been a lot of topics like this in the past.

Posted

19cutlass94 also suggested i might be losing a cylinder due to a bad spark plug....the smoke is white and does have kind of a nasty fuel smell to it. i am running ngk iridium plugs, of which i have heard some bad reviews.....

Posted

change your plugs do an oil change (oil might be contaminated with fuel) and report back!

 

Posted

well looks like we have a winner. one of the plugs is dicolored, wet, and smells pretty nasty. of course its one in the back.....but anyway, is it ok for me to change just one, or should i change them all?

Posted

You could probably get away with changing one, but really just change them all.

Posted

do them all and get away from those "higher performance" plugs. The AC Delco R42LTS is what is meant to be in these cars, I have never fouled one when there wasn't a bad coil, ICM, or injector. Speaking of which, have you determined what caused the fouling?

Posted

well i will go with the delcos. too bad the store was closed today. i wish this were the only problem with the car

Posted

I've also never had a plug foul w/o having other issues. If the new plug you swap in gets fouled again, I would start looking at the injector on that cylinder(remove the fuel rail/injectors from the intake manifold and then check for leaks while the rail is pressurized). I recently replaced three injectors in my TGP, they were leaking pretty bad(it's very common for the early multec style injectors to fail). My car smoked at startup w/ the leaky injectors for what it's worth.

Posted

Since the car is burning a white smoke, you could have a coolant leak. Id do a compression test on all the cylinders and compare your results. The fuel smell could be the injector or a leaky valve or gasket.

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