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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Description And Operation) >> Description and Operation >> Park - Engine Running >> Notes

Park - Engine Running: Notes

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

When the gear selector lever is in the Park (P) position, fluid is drawn into the pump through the transmission fluid filter assembly, from the transmission fluid pan assembly. Line pressure is then directed to the following valves: