Another way to do a test is turn your oil cap over while the truck is running, if it just vibrates off or stays there for a couple seconds then your good, if it blows off then you have problems bigtime. Pretty sure just for this test you plug the CCV hose, just for this test, somebody will confirm if Its done that way. I test mine without plugging the CCV so maybe somebody will chime in their how too's..
A forum community dedicated to Ford Power Stroke owners and enthusiasts. Come join the discussion about diesel performance, modifications, EGR deletes, troubleshooting, lift kits, tires, wheels, maintenance, and more!