Vehicle overheating

Good afternoon,

Where is the leak coming from? I would pressure test the system first to determine the location.

https://www.2carpros.com/articles/engine-overheating-or-running-hot

https://www.2carpros.com/articles/radiator-pressure-test

It could be the thermostat causing the overheating. I would start there.

https://www.2carpros.com/articles/replace-thermostat

Roy

Thermostat Replacement (5.3L Engine)

Removal Procedure

Important: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.

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1. Remove the radiator outlet hose.
2. Remove the water pump inlet bolts.
3. Remove the water pump inlet and thermostat from the water pump.