I can't seem to find the site but I was reading up on how the pcv getting plugged was happening on some of the vehicles back in 2004. They would replace the cap with a breathable cap to stop the seals from blowing as part of the recall/TSB. I ordered one and have only used it for 20-30 miles so far. The part # ACDelco FC219 is for the 2.4. Is this a sufficient way to relieve the pressure if the pcv were to get plugged on the Equinox more specifically?
Yes . . the FC219 is available on many websites form $10 to $25. It fits the Equinox as well as other GM cars and trucks.