Dealer replaced valve cover last year and stated intake was inspected and ok. Now a little over 1 year later I have this bird chirping noise under the hood. While trying to locate the noise I remove the oil cap and realized what seems to be an extreme amount of blow by. I checked the vent in the valve cover and it is not leaking like before. 88,000 miles and still should be under warranty. Is the blow by caused by the same issue as the intake and Pcv issue or is this something new? Going to take it to the dealer next week. Thanks.