Hi and welcome to 2CarPros. Lets see what we can figure out for you.
I understand you have changed the water pump and thermostat but I have a few questions for you.
1: Is it over heating all the time or just sitting still while not moving?
2: When it starts to overheat is the cooling fan coming on?
3: Is there any signs of losing coolant? IE, you fill it and check it the next day and its not full?
Here is a guide on the cooling system and how it works so you can understand the system which will help fix it:
https://www.2carpros.com/articles/engine-cooling-system
Rich
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Tuesday, September 10th, 2019 AT 2:21 PM