If your car has a PCV valve, and if your engine has been idling roughly or a malfunction indicator light goes on, check the valve. Car manufacturers suggest that PCV valves be cleaned or replaced ...
Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace the ...
We don't mean to be the harbingers of doom, but it's unwise to keep driving if your car's engine has a malfunctioning positive crankcase ventilation (PCV) system, particularly a bad PCV valve.
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