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How Common Are Transmission Fluid Leaks in the Toyota Hilux?

How Common Are Transmission Fluid Leaks in the Toyota Hilux?

Some Toyota Hilux owners report transmission fluid leaks after a certain mileage. Have you faced this issue? At what mileage did it start, and what was the cause?
Zarnish asked on 11 Feb 2025 10:54:03 am
1 Answer
22 views |
Car Mechanic Expert - on 11 Feb 2025 11:04:08 am
Transmission fluid leaks in the Toyota Hilux often occur after high mileage 100,000 km o r more due to worn seals, gaskets, o r transmission pan damage. Some owners experience leaks earlier, especially if the vehicle is used for heavy towing, off-roading, o r extreme temperature conditions.

Common causes include cracked o r hardened seals, a loose o r damaged transmission pan, leaking cooler lines, o r a faulty torque converter seal. If left unaddressed, low fluid levels can lead to slipping gears, overheating, and long-term transmission damage.

Fixing the leak usually involves identifying the source, tightening loose bolts, replacing worn seals o r gaskets, and ensuring proper fluid levels. Regular transmission inspections and fluid changes can help prevent leaks and maintain optimal performance.
 

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