Grand Cherokee 2WD V8-4.7L VIN N (2000)
Vacuum Check Valve HVAC: Locations
Vacuum Check Valves (non-AZC only) are installed on the vacuum supply system. One is on the accessory vacuum supply line in the engine
compartment, near the vacuum tap on the engine intake manifold. A second vacuum check valve is located on the bottom of the HVAC unit behind the
passenger front floor duct on the black vacuum line.
