4L60E Pump: How Does It Work? (Part 1)

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Want to know how the 4L60E pump works? The 4L60E pump is responsible for filling the torque converter, cooling the automatic transmission fluid, lubricating/cooling the planetary gear sets, and supplying feed oil to the clutches and band. This pump has a unique upgrade over many automatic transmission pumps: variable displacement (or output). Watch this video to learn how this vane‑style pump works, how variable displacement works, and how oil is routed through the various circuits of the pump.