2003 Volvo S40 "pcv valve cause misfire" Questions

the pcv valve and inspect all lines going to the pcv valve for leaks. The other thing to do is replace the gas cap as this can also cause the code. Most likely cause is a fault in the emissions system

...pcv valve what happens when badu It misfires when you press on gas there is no power and fills like air The PCV valve pulls a vac on the crankcase to vent it into the cylinders. It would probably not ...

...pcv valve. could have faulty ignition coil or mass air flow sensor could be bad.if you replaced the crankshaft position sensor it will cause random misfire the dealership has to perform a crankshaft ...

pcv valve on the front valve cover, not sure where it actually goes from there but thats the only thing that I can find that isnt hooked up. I saw on another post about the egr valve gasket, i did not

...PCV) valve located somewhere on the cylinder head cover. The big rubber grommet around the PCV valve is a common cause of vacuum leaks. Check that the PCV valve is making a snug fit inside of this ...

PCV valve? IAC valve? Sparkplug wire? Throttle body? Vacuum hose? I had a diagnostic ran about half a year ago and said a misfire in cylinder 6 was occuring; the check engine light would come off and ...

...misfire, the only way oil can get into the intake is from the pcv system, most likely the pcv valve. A little oil coating is normal but excessive amounts are usually due to the valve being stuck ...

...start when hot what causes this? Volvo s40 2.0litre none turbo. Burning oil may be the cause of the rest. Bad PCV system? Worn rings? Bad valve guide seals? Fully describe how and when it burns

...what causes this? could be dirty oil, worn rings, plugged PCV valve, worn valve seals, too much oil in crankcase, if its a v6 could be an internal intake leak. the miss fire is from it burning

...PCV Valve could all be a cause. I would run some injector cleaner through and also clean the MAF Sensor, change your PCV Valve. This would be an easy and cheap start for you. Good luck and thanks for ...