Just trying to make sure I understand the issue. You replaced the water pump and thermostat but removed the thermostat and the engine still starts to overheat?
Was it doing this prior to replacing these parts? What was the reason for replacing these parts?
If this was not doing this prior, it sounds like you have an air pocket. I would suggest buying a no spill funnel as shown below and then jacking up the corner that is closest to the radiator cap as it will help force the air to the highest point and allow it to escape.
This video is not on your vehicle but it shows how to fill the system using this funnel.
https://www.youtube.com/watch?v=s4OONuIzYVQ
https://www.youtube.com/watch?v=W8kra65m15c
Let us know this info and we can go from there. Thanks
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Monday, January 18th, 2021 AT 5:49 PM