ok guys I'm trying to find some info on radiators. My 86 4runner rad gets super hot even after being on for <5 mins gauges says cool doesnt overheat, but that SOB gets super hot. All my searches came up with overheating issues and broke temp sensors I'm not having those problems. Are any of y'alls 4runners rads like this?

 

Tempuratre gun?

 

You gotta measure the temperature somehow.
Touching it ain't gonna do it.
Get an inexpensive IR temp gun.

 

Temp should be under or around 220. If so its fine....

 

I'll check with a temp gun at work 2moro. its hot enough to make a blister on the inside of my bicep after touching it for a second

 

Radiators have 200 degrew coolant running through em... thwre gonna be hot ^_^

 

yes x2

 

is your gauge actually working or stuck at the normal temp reading

 

I believe its working just fine. My rad is full

 

If you start it, cold, with the radiator cap off, what happens?