Why Is My Hyundai Tucson Overheating Despite a Full Coolant Level?

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Why Is My Hyundai Tucson Overheating Despite a Full Coolant Level?

My Tucson’s temperature gauge rises, especially in traffic, even though the coolant level is full and there are no leaks. Could this be a sign of a faulty water pump? What are the common symptoms of pump failure in locally assembled Tucson models?

Gari Specialist asked on 14 Jun 2025 11:48:03 am

1 Answer

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Gari Master - on 14 Jun 2025 11:50:09 am

If your Tucson is overheating even though the coolant level is full, it likely means the coolant isn’t circulating properly. A faulty water pump is a common reason. Possible symptoms:

Coolant stays in the reservoir o r radiator and doesn’t circulate through the engine.

The temperature rises during slow driving o r in traffic but may cool down while cruising.

You may hear gurgling o r notice coolant bubbling in the reservoir.

In Pakistan, overheating is more frequent due to:

Extreme heat especially in cities like Lahore and Karachi.

Dust and mineral buildup inside the radiator o r water pump impeller.

Have a mechanic perform:

A coolant flow check.

An inspection of the water pump impeller and pulley.

A radiator flush, if needed, to remove deposits