pjm8047
Well-Known Member
what would cause top radiator hose to get really hard engine temp to rise fast when at idle and coolant going into over flow tank. At one point the gauge went to hot really fast the drop back down to normal never seen that before. It’s a 71 rr with a 4 row aluminum radiator. Could it be a bad thermostat not opening all the way? Someone told me not to run a thermostat at all.