Hello,
An engine can overheat due to a number of factors besides a bad water pump.
It could be due to a stuck closed thermostat, bad radiator, inoperative cooling fan, it can also overheat due to any restriction in the cooling system.
Do you know if the radiator fans are turning on when the engine reaches operating temperature?
If the thermostat is stuck closed it will create a significant temperature difference between the upper and lower radiator hose, due to not having coolant flow.
Take a look at this guide, it covers the typical overheating issues:
https://www.2carpros.com/articles/engine-overheating-or-running-hot
Go through this guide and let me know what you find or if you have any questions.
Thank you.
Tuesday, February 22nd, 2022 AT 7:35 PM