This is a continuation of two previous videos dealing with PCV and Vacuum system issues in the Jeep 4.0. The Jeep 4.0 uses manifold vacuum to scavenge oil vapors off the valve train AND provide power to operate the heater / vent system as well as the cruise control. The previous videos are    • Jeep 4.0 LITER Crankcase Vent Problem...   and    • Jeep Cherokee Vacuum System Repair (X...  
4.0 Valve Cover https://www.amazon.com/Dorman264983...
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