Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pump Assembly
Fluid Pump and Transmission Fluid Filter Components
| Item | Description |
|---|---|
| 1 | Transmission fluid filter assembly |
| 2 | Pump assembly |
| 3 | Chain and sprocket assembly |
| 4 | Stator support assembly |
| 5 | Transmission case |
| 6 | Torque converter housing |
Mechanical Operation
The transmission fluid in the sump area at the bottom of the transmission case flows through a transmission fluid filter to the pump assembly. The pump assembly is bolted to the converter housing and driven by a chain and sprockets. The drive sprocket is turned by the torque converter, the drive chain then transfers the torque from the drive sprocket to the driven sprocket. The driven sprocket is attached to the oil pump shaft.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.