I have brown dark smoke commin out the tailpipes, Runnin rich I think, I dont know if i need an o2 sensor but i want to run less righ, i fail inspection for visible smoke, it might be my valve seals but please help me out. Thanks

 

rich is black smoke, better check it out in some more detail. pop the hood. do some testing with your volt ohm meter on the o2 etc..

 

Sounds like you have a bigger problem than just running rich. I have't seen black smoke come out of any car that runs rich. The only thing that comes out is wet unburnt gas and some carbon (at least on the cars I've worked on). Take the car to a local shop, I can't even think of where to beggin. Have you checked ALL your fluids? How about drive quality, ruff idle, HUGE delay, no throttle responce, what what what. Just smoke?!!?!?! If it's just smoke then I can only think that it's blue (oil).

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, Jon (350 TBI!)
91 Red My website

 

Throttle Response is good, the ride is great, everything seems to be ok, oil just changed, still on full when i checked today, The only think that is low is the coolant, I think I have a small coolant leak, not sure. The only thing wrong is this smoke problem. Thanks alot, REPLY!!

 

Can you say head gasket? I hope this isn't the problem but when you said coolant is getting low, well what else comes to mind.

Steve

 

If it is a head gasket, take ur car out for a ride and let it get hot, just like a normal drive. Then take it back to ur place and when u turn off the engine hurry and pop the hood and look at ur reserve tank to see if there are any air bubbles. If there is, chances are its a blown head gasket. Have u tried posting this on the General Engine/Tech section of this forum? They might have a better idea of ur problem.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
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