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What is your question?
I CHECKED PCV SYSTEM ALL LOOKS GOOD IS THE VALVE COVER WHERE PCV HOSE CONNECTS THE PROBLEM I READ THAT THIS HAS A BAD DESIGN AND CAUSES THIS ISSUE I HAVE 117K MILES AND ALWAYS USED VALVOLINE SYN. OIL

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I HAVE READ THAT OTHER PEOPLE WITH THE SAME ISSUE REPLACED VALVE OIL SEALS AND THIS DID NOT CORRECT THE PROBLEM DID YOU EVER HEAR OF A 2ND DESIGN IN THE VALVE COVER WHERE THE PCV HOSE ATTACHES / LEFT HAND SIDE ?
no but did the pcv valve fall apart inside. quick ck remove valve and see if it rattles and then ck if it only flows one way
THERE IS NO ACTUAL PCV VALVE THE HOSE JUST CONNECTS TO A FITTING ON VALVE COVER
the pcv may unscrew from valve cover