1991 Nissan Sentra Q&A
1991 Nissan Sentra Question: Radiator overheat
I don't think i'm to be concerned. When my nissan pintara is idle, temparature gauge rises close to "H" hot and fan's kick in late. Otherwise temperature when driving remains just above halfway. Is there a problem? If there is what might it be. - Visitor
Temperature running in the center of the gauge when you are driving at freeway speeds shows the radiator is dissipating heat well with rush air flowing through the radiator. I wonder if the fan switch is coming in late or more likely the thermostat is not opening correctly. The cheapest and most beneficial thing to do is remove the thermostat and thoroughly flush the radiator. - patrick mannion
if you change the thermostat, and it still does the same thing, (therm. are cheap and easy to change, and while you do that, a flush and fresh coolant wouldn't hurt.) Make sure that there is NO air in the system. Check for small leaks. The smallest leak can affect the temp. If worse comes to worse, it's possible that the head gasket or gaskets is/are leaking water. let's hope not.... - cowdough
This car still has a LOT of pep when you step on the gas pedal.Recently, it overheated on the interstate after 45 minutes of driving. I discovered the radiator cap was "off" sitting upside down nex...
Car continues to overheat and coolant leaks out fairly fast.
I have no heat in the car until I drive at hyw speed then there is lots. Car does not overheat and I flushed the heater core out with a garden hose and it was clean. Thermostat is new and the rad h...
The car does not overheat but the water in the expansion tank does
When cap is off I can squeeze all hoses and water comes out replaced thermostat but still overheats