Gen 5 & 6 Problems/Service Issues/Troubleshooting
My 07 LTZ 3.5 V6 tends to always run hot.
I installed an OEM GM 185° thermostat, fans seem to be running properly, and antifreeze is new, but the temp gets up to 220° during city driving. Highway driving it runs around 200°
Is that normal with a 185° thermostat?
I really like this car and don't...