I went to change the air filter in my 1997 Camry 4 and found some oil in there. Am I right in assuming the PCV valve needs to be replaced?
oil in air filter housing
Nov 03, 2003
1 Replies
Check to see how much blow-by the motor is producing as well. While a blocked PCV valve or its fittings can produce enough crankcase pressure to force gases up into the aircleaner via the ventilation hose used for WOT crankcase ventilation, a worn motor which is fuming excessively will produce the same symptom.
Jason
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