What Other Cooling System Components Should Be Checked with the Thermostat?

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What Other Cooling System Components Should Be Checked with the Thermostat?

Replacing a thermostat might not be enough. Did you find any related issues, like a bad water pump o r clogged radiator, when fixing yours?

Lubaba asked on 11 Feb 2025 11:41:32 am

1 Answer

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Car Mechanic Expert - on 11 Feb 2025 11:51:13 am

When replacing a thermostat, some Hilux owners have discovered related issues like a failing water pump, clogged radiator, o r damaged hoses. A faulty water pump can cause poor coolant circulation, leading to overheating. A clogged radiator, often due to debris o r old coolant buildup, can restrict flow and reduce cooling efficiency. Some also report worn-out radiator hoses that leak o r collapse under pressure. Checking the entire cooling system during thermostat replacement helps prevent further problems and ensures optimal engine performance.