318 overheating

Dana67Dart said

Was the system pressurized when you took the cap off, it should have sprayed coolant all over the place if it was pressurized.

What pressure cap do you have?

The temps you saw don't seem too far off to me.

You mentioned you replaced the rad. What part number is it?

Regarding the temp guages... You could have an IVR issue. What does your fuel gauge show?

I can't imagine the engine being very warm after 3 hours.

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When I took the cap off it didn’t spray anywhere. Pressure cap is pretty old so I can’t see what it is rated at. The Rad was just a generic one I found on Amazon. It’s been good for over 3000 miles so far. When it started going a little high the fuel gage was working, then when going to lunch the fuel gage stopped working. It’s done that before but never overheated. After having it home for 3 hrs the engine was still pretty warm and was at an ok temp when I rolled the key. I started it and it idled fine in park but drive it started to idle very rough. Got it to idle after adjusting the idler screw 1/8 turn. I’ll look at it again on Monday when I get home