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Home >> Hummer >> 2008 >> H3 Adventure, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Description & Operation >> Park - Engine Running >> Notes

Park - Engine Running: Notes

With the gear selector lever in the PARK (P) position and the engine running, the line pressure from the oil pump assembly is directed to various components in the valve body and the oil pump.