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What Are the Main Causes of Water Pump Failure in a Toyota Hilux?

What Are the Main Causes of Water Pump Failure in a Toyota Hilux?

Some common reasons include coolant leaks, worn-out bearings, o r a broken impeller. What was the cause of your water pump failure?
Sandeep asked on 11 Feb 2025 15:57:14 pm
1 Answer
16 views |
Car Mechanic Expert - on 11 Feb 2025 16:00:44 pm
💥 Common Reasons for Water Pump Failure:
🔴 Coolant Contamination – Dirty o r wrong coolant causes corrosion.
🔴 Worn-Out Bearings – Over time, bearings wear out, leading to failure.
🔴 Broken Impeller – The internal blades that circulate coolant may crack.
🔴 Coolant Leaks – If seals o r gaskets fail, leaks occur.
🔴 Overheating Issues – Constant high temperatures damage the pump.
🔴 Loose o r Worn Belt – A weak drive belt affects pump performance.

📌 Solution: Flush coolant every 40,000 - 60,000 km and use Toyota-recommended coolant to prevent failures.
 

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