^Both are supposed to come on, you have one that is toast.

Walt, I have to agree the most the radiator will reduce temp is 20 degrees and it looks like yours is on point. What do the tube openings look like? Clean or crusty?

 

Scouts, what exactly do you mean by tube openings? The area just inside the fill plug looks super clean with no crud at all.

 

I am going to follow this thread because the time is coming when I will need to replace these items. Everything under my hood is original except the battery and upper rad hose.

 

Mine do - both at the same time

 

Both.