Powertrain
Auxiliary Transmission Fluid Pump. Description and Operation
In this manual: Powertrain
~1min read
Auxiliary Transmission Fluid Pump Components
| Item | Description |
| 1 | Transaxle assembly |
| 2 | Auxiliary Transmission Fluid Pump Feed Tube Assembly |
| 3 | Check Ball (part of the auxiliary transmission fluid pump feed tube) |
| 4 | Auxiliary Transmission Fluid Pump to Transmission Case Gasket |
| 5 | Auxiliary Transmission Fluid Pump |
| 6 | Auxiliary Transmission Fluid Pump to Transmission Case Bolt (3 required) |
Mechanical Operation
The auxiliary transmission fluid pump is an external electric pump bolted to the transmission case. It draws fluid from the transmission sump through the pump feed tube. The auxiliary transmission fluid pump maintains line pressure while the engine is stopped on vehicles equipped with Auto-Start-Stop. The auxiliary transmission fluid pump is controlled by the PCM.
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