Funny...Yesterday, the plunger would open when the engine was off but was locked (and I mean LOCKED!) in the closed position when the engine was started and when revved. No movement of the plunger when revved. Today, plunger operates as it should, moves when revved. I've ordered a new OEM BPV. If there were a vacuum leak, it would've thrown a code, right? Anything else you can suggest?
Thanks,
Stan
ssimm@triad.rr.com