Noise goes away if pinch off pcv valve vacuum hose or fresh air inlet hose to valve cover. Noise is much louder if remove oil cap-can hear it coming from inside of engine. Cannot hear noise w a stethoscope on the block or head. Noise doesn't change w/ killing ...

FIX posted 6/29/2016

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle