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.
Mechanical Components and Functions: Lubrication
Transmission fluid enters the lubrication circuits after flowing through the transmission fluid cooler. The transmission fluid cooler is mounted at the front of the vehicle. When the transmission fluid is not up to operating temperature, an internal thermal bypass valve allows the transmission fluid to bypass the transmission fluid cooler. When the transmission fluid circulates through the transmission fluid cooler, the transmission fluid returns to the transaxle from the transmission fluid cooler tubes through the back transmission fluid cooler tube.
The transmission fluid enters main lubrication circuit through the transaxle case and flows through passages in the input shaft to lubricate the transaxle.
The transmission fluid in the input shaft circuit flows from the back of the input shaft toward the front of the input shaft and passes through ports in the input shaft to lubricate the planetary gearset, clutches, final drive assembly and other components of the transaxle.
| Item | Part Number | Description |
|---|---|---|
| 1 | 7D273 | Transmission fluid cooler return tube fitting |
| 2 | 7H322 | Thermal bypass valve assembly |
Lubrication Passages
NO RELATED
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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.