2005 V6 P0128

Good morning! This code popped up.

Coolant was topped off. Is there a way to bleed it?

Most of my research points that if this does not cure it, I should change the thermostat, but it could be the temp sensor.

I appreciate anyone's input on how to further diagnose this issue.

Thanks!


UPDATE: I haven't been on this forum in awhile and when I was here I had a 1995. I see I posted this in the wrong spot. I'll re-post on the V6 sub forum.
 
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