Transmission Fluid Auxiliary Pump
WARNING: This page is about a different variant/trim than selected.
Transmission Fluid Auxiliary Pump Components
| Item | Description |
|---|---|
| 1 | Transmission assembly |
| 2 | Transmission fluid auxiliary pump supply tube assembly |
| 3 | Check ball (part of the transmission fluid auxiliary pump supply tube) |
| 4 | Transmission fluid auxiliary pump-to-transmission case gasket |
| 5 | Transmission fluid auxiliary pump |
| 6 | Transmission fluid auxiliary pump-to-transmission case bolt (3 required) |
Mechanical Operation
The transmission fluid auxiliary pump is an electric external pump bolted to the transmission case that draws fluid from the sump area of the transmission through the pump supply tube. The transmission fluid auxiliary pump maintains line pressure during engine shut down on vehicles equipped with the Auto-Start-Stop System. The transmission auxiliary fluid pump is controlled by the PCM.