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Home >> Chevrolet >> 2009 >> HHR SS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Description And Operation >> Automatic Transmission Hydraulic Diagrams >> Park or Neutral - Engine Running (With Electronic Range Select Mode) >> Notes

Park or Neutral - Engine Running (With Electronic Range Select Mode): Notes

When the gear selector lever is in the Park (P) position and the engine is running, fluid is drawn into the oil pump. Line pressure is directed to the pressure regulator valve.