Overheating?

What is your question?

Engine over heating randomly. Have changed water pump, belt, fan motor, upper hose, both thermostats, coolant fluid full. Engine runs normal until it heats up then dash gauge starts to modulate up and down slowly. No leaks present, no fluids oozing out, no coolant residual under hood, no noises of any kind and engine runs strong. Over heating causes AC to then blow warm air, but then engine starts to cool down and AC starts to blow cold air again.

What makes this problem better or worse?

Air flow when driving improves cooling

How long has your 2013 Dodge Avenger had this problem?

Intermittent over last year