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  #1  
Old 03-26-2007, 03:02 PM
toolhead toolhead is offline
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Question blue smoke?

sorry to be asking all these questions but i keep finding stuff that a second opinion wouldnt hurt. anyway i noticed today that my car wasnt boosting like it was. in first gear it boosts fine but when i let off the gas at the end of the gear in wot and look behind me i see a puff of blue smoke then when im in second it will boost fine for the first half of the gear then it makes a weird noise and doesnt pull like it should. so i let off and another puff of blue smoke. so i was woundering what could the blue smoke be? i was thinking oil. but not knowing from were. and the second question is if the blue smoke could relate to the low boost? and i think thats all. so let me know what you think
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Old 03-26-2007, 03:17 PM
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ZRYDERVR4 ZRYDERVR4 is offline
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Re: blue smoke?

awhile ago there was a forum with the same problem i think it was oil that was make the blue smoke, like a oil leak leak in the turbos or something like that.

and idk about the boost tho
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Old 03-26-2007, 03:20 PM
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Re: blue smoke?

Blue smoke is burning oil. Check your turbos to make sure it isn't leaking from them.
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Old 03-26-2007, 03:33 PM
vectorspecialist vectorspecialist is offline
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Re: blue smoke?

blue is oil, i had white smoke and still have it.
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Old 03-26-2007, 03:37 PM
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Re: blue smoke?

Quote:
Originally Posted by vectorspecialist
blue is oil, i had white smoke and still have it.
That would most likely be steam which is burning coolant.
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Old 03-26-2007, 05:34 PM
vectorspecialist vectorspecialist is offline
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Re: blue smoke?

that or i've also thought maybe it's water getting into the exhaust pipe's(sadly it sits outside) and as the exhaust heats up, its burning the water off
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Old 03-26-2007, 06:52 PM
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Re: blue smoke?

yes, blue is oil, white is coolant.

if your burning oil, it could be at any one of several places: turbos, valve stem seals (VSS), rings. most likely the VSS: the turbo cars have this problem around 120k miles. how many miles are on your car?
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Old 03-27-2007, 12:11 AM
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Re: blue smoke?

yeah but the fact that he's blowing out oil when he shifts, and he isn't boosting all that well, are kinda hinting more towards turbos, not vss. VSS leaks would be more prevalent at start up. Not to say it's one or the other, frankly it could be all 3.

Best bet is to pressure test it and do a compression test. See where you're at.
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Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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Old 03-27-2007, 08:35 AM
vectorspecialist vectorspecialist is offline
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Re: blue smoke?

does it smoke at all when u accelerate or just wen u shift
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Old 03-27-2007, 09:12 PM
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Re: blue smoke?

Quote:
Originally Posted by vectorspecialist
does it smoke at all when u accelerate or just wen u shift
it smokes when i accelerate to. but i noticed it when i was shifting
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