blue smoke out of tailpipes???

Bundmar · Jul 15, 2007

i have blue smoke coming out of my tailpipes only after i drive my car after its been sitting a while...it only happens for the first few times i step on it and then it doesnt do it again, happens at part and wot only...what could this be...

CobraRed_96_GT · Jul 15, 2007

burnt oil. If it accumulates while it sits that usually means it something like a valve guide leak: when your valve doesn't seal properly snug to the head's valve guide and oil slips down the glide after letting the car sit awhile so it accumulates a bit in the combustion chamber then burns once u start the car.

Tim2002GT · Jul 15, 2007

Maybe you need the valve seals replaced

SaleenGT2001 · Jul 15, 2007

Tim2002GT said:
Maybe you need the valve seals replaced

sounds like the problem to me. how many miles on the car?

Scorcher2005 · Jul 15, 2007

Could also be piston rings causing some blow by

HoustonGT · Jul 15, 2007

You're burning oil, it could be the valve seals, but seeing as you're blown, my guess would be blowby

Bundmar · Jul 16, 2007

is this unsafe???
it only happens if car sits for a while maybe few hrs and only when i step on it half or WOT for the first couple times then i can beat on it as much with no smoke...

Scorcher2005 · Jul 16, 2007

Is it safe for what? Your car is probably making less power now as there is oil along with fuel and air in the combustion chambers. You also need to start checking oil levels more since your burning more. Last...start saving for a rebuild ;-)

Mike97gt · Jul 16, 2007

Just check the oil level more often, you probably have a valve seal issue..

Check the compression on the motor when it's hot and see if you have full compression if you do then I would not worry about it until it's time to replace the motor.

the98stang · Jul 17, 2007

svttech76 said:
Just check the oil level more often, you probably have a valve seal issue..

Check the compression on the motor when it's hot and see if you have full compression if you do then I would not worry about it until it's time to replace the motor.

I agree. Just install an oil seperator and run straight 30w oil.

Spreadman · Jul 17, 2007

If it's doing it after only sitting for a few hours, then you are burning oil. You are either getting it through the PCV (run your finger on the inside of the throttle body to see if there's a build up), or piston rings. It COULD be valve seals, but I seem to remember the 4V's having that problem more than the 2V's.

tomustang · Jul 17, 2007

the spreader

Mike97gt · Jul 17, 2007

Spreadman said:
If it's doing it after only sitting for a few hours, then you are burning oil. You are either getting it through the PCV (run your finger on the inside of the throttle body to see if there's a build up), or piston rings. It COULD be valve seals, but I seem to remember the 4V's having that problem more than the 2V's.

If you let the car sit at idle for awhile and then it does it then it is most likely the PCV..

Spreadman · Jul 17, 2007

tomustang said:
the spreader

As seen on TV

blue smoke out of tailpipes???

Bundmar

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