Review on 🔧 Dorman 47079 PCV Valve Elbow - Optimal for Dodge and Jeep Models by Bobby Posner

I destroyed the original knees and gaskets while replacing the cylinder head and cleaning the engine compartment. The original 19 year old bushings had hardened and did not allow the original knees to be removed without breaking them. For a 1998 Jeep Wrangler TJ I had to redo the valve elbows and bushings to completely rebuild the valve cover: Quantity 2: Dorman HELP! 42344 PCV valve sleeve for front and back of valve cover. Lot 1: Dorman 47079 HELP! PCV elbow (this product page) for FRONT of valve cover, connects to air cleaner tube. Lot 1: Dorman 47057 HELP! PCV elbow for REAR valve cover, connection to intake manifold. As another helpful reviewer mentioned, you don't want to mix up the knees and create an airflow issue. Attach Low Flow 47057 to REAR and High Flow 47079 to FRONT. I hope this helps other Jeepers as I'm having trouble getting the correct repair part information for this job elsewhere.