worst case symptoms/damage caused by bad PCV valve? - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com
 
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Old 04-12-2004, 10:44 PM   #1
airbrush1
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worst case symptoms/damage caused by bad PCV valve?

what problems could a bad PCV valve cause? what symptoms would occur? I had a problem with blowing the hose to the pcv valve off when I drove the car hard, I "fixed" it by zip tying the hose on. the hose seemed like it had been "sucked flat" afterwards... still is, and the car runs like crap and smokes like hell now ( see post- "I think I killed it...") Might replacing this valve remedy my problem? The car runs like absolute crap when the hose is disconnected, I assume it could cause some problems if the valve went bad? SUGGESTIONS????
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Old 04-12-2004, 10:56 PM   #2
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Check to make sure your throttle plate is adjusted right. If your car made enough vaccumm to flatten out that hose something is up. What does the vaccumm read at idle?

As for the pcv valve... if its stuck open it will let boost into the crank case and blow the dipstick out. If its stuck closed its not a huge deal really.
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Old 04-13-2004, 03:44 PM   #3
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say the dipstick doesn't bloe out for some reason, could the built up pressure cause more severe preblems... IE: blown gaskets etc???
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Old 04-13-2004, 03:54 PM   #4
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It would be more likley to shoot your dipstick through your hood and into orbit than blowing a gasket from a open PCV valve.
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Old 04-13-2004, 05:28 PM   #5
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Quote:
Originally posted by outbost
It would be more likley to shoot your dipstick through your hood and into orbit than blowing a gasket from a open PCV valve.
Ive seen that happen LOL

Just imagine some guy is driving down the highway with his wife when a random dipstick goes right through the hood of his car and is embedded into the asphalt
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Old 04-14-2004, 10:19 AM   #6
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Worse case scenario - underhood fire fueled by oil blown out of the engine.

The only thing I can think of that would cause the pcv hose to be sucked flat is an air cleaner element completely plugged. Maybe you need a new hose.
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