I just bought a new pcv valve cover from eBay since the old one teared. I noticed that the new cap has a smaller hole than the oem cap. Should I just keep the old cap or continue using the new one. I tested the new one by turning on my AC during a cold start, a few small revs and slow coasting since before it was making the whistle squeal sound whenever I did that but everything seems fine. I’m not sure if this’ll affect the vacuum significantly or not so what do ya’ll think?
u/Dramatic-Science-549 — 22 days ago