Known overheat issues 4.7 RAM V8? EDIT FIXED

I do not know any mechanics that like those engines. A deal breaker for most of them when looking at a used vehicle. They’re no LA, it’s almost a copy of a Ford 2 valve 4.6. Just not as good… I like them, but just like 65-440 said, they’re only as good as they’re maintained. It sounds like it’s possibly a thermostat, but a cell phone bore scope would be a good investment to look into the cylinders with for steam cleaned parts or coolant intrusion when cold. At least the spark plugs are on the intake side of the engine. I’d probably just taste the motor oil to see if it was “coolant sweet” or not.