Question about 1997 Pontiac Firebird

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Picture of pvc valve burns oil - 1997 Pontiac Firebird

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PcV Sould only function at idle or deceleration. If oil burning is occuring while accelerating, valve is open and defective. If pcv does not open at idle or decel, excessive crankcase pressure results causing leaks in places you didn't think held oil. Good Luck.

Posted on Aug 02, 2009

  • Ned C Cook
    Ned C Cook Aug 02, 2009

    pcV Sould only function at idle or deceleration. If oil burning is occuring while accelerating, valve is open and defective. If pcv does not open at idle or decel, excessive crankcase pressure results causing leaks in places you didn't think held oil. Good Luck.

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Eng was low on oil by 1quart


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Check PVC valve and where PVC pipe goes into manifold or air cleaner for excess oil.
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My 2003 accord is waisting oil and is not burning oil or liking it I don't no what to do I change the PVC valve what could I do


Has to go somewhere
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I have to add oil about 2 litres on 8000km to my 2003 Toyota Camry with 160,000 km, it's a 4 cylinder, does not leak oil and doesn't burn oil. Any suggestion, I have change the PVC valve, did not...


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My 2000 chevy cavalier 2.2 4 cylnder has an high amount of back pressure in the crankcase ,if u pull of the oil filler cap with motor running it spits oil out and what seems like smoke ,it doesnt run hot...


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1 Answer

2002 530I, cranks but does not turn over. how do I tell if the O2 sensor went bad and quit? Also, there is no oil leak but the car was very low on oil, where does the oil go?


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Oil gets burned. A valve cover leak above the exhaust manifold may cause the oil to burn on the manifold and never make it to the ground. You can smell that happening.
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if engine burning 2 quarts a week no oil leaks time for a over haul.check pvc valve shake it if rattle its good if not replace it. change valve seals. because if they are leaking they will cause oil to leak bt them burn with gas. also change plugs and wires.if this dont work . time for over haul.

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