I changed water pump & radiator & thermostat and radiator cap.it still gets hot.
I am guessing you are asking a question and not just letting us know.
did you bleed the air out of the system?
Check to make sure cooling fans are coming on.
also check to see if you have a blown head gasket
just some thoughts.
oh, and if I was wrong and you were just venting. then… sorry to hear that. LOL
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With engine cold, remove the radiator cap.
Start the engine, and as the engine idles watch the coolant in the radiator.
If bubbles start to appear in the coolant, it’s an indication of a blown head gasket.
Tester
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You might also want to verify the coolant temperature gauge is accurate