Forum Discussion
CharlesinGA
Jun 06, 2016Explorer
Indeed, the pump that provides pressure to operate the clutches and other hydraulic components, is also the very necessary lubricant pump for bearings, the wet clutches, thrust washers/bearings, gears, etc. All of this is driven by the torque converter's outer housing where it engages with the pump. if the motor is turning, the pump is turning, even if the input shaft is NOT turning (sitting at a traffic light in drive for example, the input shaft is not rotating). With the engine off, the transmission has no lubrication or cooling. It was the 1960's since a transmission was built with a rear pump driven by the driveshaft. You could actually push start those vehicles!
Charles
Charles
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