Anything to watch for when changing out these valves? I have the new OEM spring recirc valve and a complete PCV assembly with gasket as I was seeing a flat spot at approx 5200rpm prior to taking some of the uprated parts off my car. I now understand this flat spot has been seen on several cars and can be attributable to the PCV blocking, causing the oil cap seal to have issues, and possibly the diaphragm on the original OEM recirc valve having issues.
Last edited: