I was inspecting the engine bay for the reason i have oil on the valve cover.. Then i fired up the car without the airfilter housing on and noticed oil/oil vapor coming from the thing on the valve cover.. The thing to the left NOT the pcv valve. It was sputtering away.. it had filled the aircleaner area with a good amount of oil. What is that black plastic thing? why is oil able to come through this?

Thanks
-Michael

It is the inlet vent, air should have been going IN this hole.

First off you need to verify PCV opperation. If it is not working fix it. If it is working you have a very worn out engine.

What Electrathon said.

My first Fiero was a 85 with a 2.5 and it was well on its way to dying but I wouldn't let it.

There was so much "Blow-By" past the worn rings it would presurize the interior of the engine and it would come out into the air cleaner like you described.

It's possible the PCV valve is bad and contributing to the problem also.

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Where will the road take you today?

The "thing" to the left on the valve cover is a filter. It is suppose to vent gas vapor to the TBI for emissions. Yours is most likely clogged now. Check the PVC valve. Disconnet it and shake it. This a a rudimentary test. If the valve doesn't rattle replace it.

Best guess is blow by. Check commpression and have the engine repaired or replaced.

Frank

Well i took off the pcv valve.. Its not really a valve atall.. Its a curved hunk of plastis that connects the rubber hose from the trottle body to the valve cover? Is mine missing something?

quote Originally posted by DeLorean247: Well i took off the pcv valve.. Its not really a valve atall.. Its a curved hunk of plastis that connects the rubber hose from the trottle body to the valve cover? Is mine missing something?

The valve is metal and it's in the hose leading to that black plastic elbow. Replace it; they're cheap - and if you're getting blow-by into the air filter it'll most likely help.