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.
Transmission Oil Cooler
The transmission oil cooler is a heat exchanger. The cooler is located inside the right side end tank of the radiator. The temperature of the transmission fluid is regulated By the engine coolant that surrounds the oil cooler as the transmission fluid passes through the cooler.
The transmission oil pump directs the fluid through the transmission oil cooler feed-line to the oil cooler. The fluid then flows through the cooler while the engine coolant absorbs heat from the fluid. the fluid is then pumped through the transmission oil cooler return line, to the transmission.
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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.