Review on 🔧 ACDelco GM Original Equipment CV916 PCV Valve: Optimal Crankcase Ventilation Solution by Johnathan Sherman

I asked someone to install it while I was preparing my diesel for a long trip (I was at work). But I took it out of the box first and inspected its construction and finish. It was well made with no visible defects or damage in transit. It seems to work. Oil leaking from under the valve covers, filler neck and oil pan joint stopped after installation. Apparently the old block was locked in the closed position. Too bad I didn't get an OEM locally. I bought two of these to have some left over for later. I believe they came from a GM source in Canada. Easily accessible units were much cheaper than quality here.