the best way to check if your thermostat is opening is to touch the lower radiator hose when the car is at normal operating temps. If it is cold or a noticeable difference from the top hose then your thermostat isnt opening.
the best way to check if your thermostat is opening is to touch the lower radiator hose when the car is at normal operating temps. If it is cold or a noticeable difference from the top hose then your thermostat isnt opening.