Question about 1991 Toyota Supra

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1991 toyota supra blue smoke from tail pipe when get of the gas

I just purchased a 1991 toyota supra and i am wondering if its the turbo makeing this happen blue smoke only when i let of the gas idles perfect turbo works good just the cloud of smoke when you let of the gas

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The intake valve guide seals are worn and are letting oil slip by under high engine vacuum--as when you let up on the gas. The only fix is to take the cylinder head off and replace the valve guide seals. This problem is pretty normal for an older car with high mileage. It will probably run just fine. Just keep checking the oil level and keep it topped up.

Posted on Feb 07, 2009

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Im having problems with my audi a6 turbo Quattro, it is smoking out of the passenger side tail pipe and you can smell a burning smell


If its blue smoke then your valve stem seals are worn and that is allowing oil to enter the cylinders and burning with the gas.

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02 highlander 4cyl I park it for 2 days when I go to start it smoke blows out the tail pipe after 30 sec or so no more smoke what is the problem ?


Depending on the color of the smoke.....

Blue smoke = Burnt oil (Valve steam oilseals)
To fix you need them replaced can be done without removing the head.

Black smoke = Too much fuel (Running rich)
Tune-up replace air filter.

If its a turbo it could be the seals in the turbo but i doubt it as it stops smoking.
Hope this helps , Please rate me as feedback does help.


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Sounds like you may have turbo failure. The bearings may be bad and running the engine would damage it more if a turbo fin breaks of and endes up in the pistons. If there is lot's of blue smoke from the tail pipe then it's your turbo, if not it could be your boost side pipe clamp or tube gone bad or your wastegate actuator. Good luck and hope this helps

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No power,thick smoke.power coming on and off,like it was dirty


Black smoke means its over feuling check your vacuum pipes. Blue smoke if you piston rings have not siezed it can onley the turbo seals.

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Air flow meter


The turbo uses a completely different air flow meter than the non-turbo.

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get an aftermarket blow off...hks, greddy

Jun 20, 2008 | 1991 Toyota Supra

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piston rings are shot and your valves need to be replaced

have you been racing this vehicle or has previous owner

if you just bought the car im sure last driver had it semi decked out now you will need a laptop the cars software to reset vehicles computer back to factory settings
when owners drive there vehicles they set them up in a way so more gas and throttle can be applied you just need to reset everything back to factory settings on comp
and if that dont work you will definatly need to do an over haul

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