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Nissan Sentra Radiators and Parts

The radiator in your Nissan Sentra is an essential part of keeping your car running. Your radiator keeps your engine temperature under control. Parts of your radiator may need to be serviced or replaced in order to keep your Nissan running efficiently.

What does a radiator do?

Your Nissan Sentra’s radiator is part of your vehicle’s cooling system. Your engine has a thermostat that indicates when the temperature is becoming too hot. This triggers the radiator to release coolant and water. These liquids pick up the heat from the engine and run back through the radiator. Air flows by the radiator, which cools it down. Once cooled, the coolant runs back into the engine.

What are the parts of a Nissan Sentra radiator?

Your Nissan radiator is comprised of several parts that keep the coolant moving through your vehicle. There is an inlet that connects it to the rest of the vehicle, a pressurized cap where you can add coolant, and cooling fins. Air passes by the fins to cool down the coolant. The coolant then runs through an outlet and back into the car.

How do you properly maintain your Nissan Sentra's radiator?

There are a few key steps to keeping your Sentra’s radiator running smoothly:

  • Check your coolant level regularly. If it’s running low, add more coolant. You may need to add water to the coolant if it’s not pre-mixed. Check the coolant label to know for certain.
  • Keep the pressurized cap on properly. If the cap isn’t on correctly, the radiator loses pressure.
  • Flush your radiator periodically. Your Nissan’s service manual will tell you exactly how often to get this service done, but typically, it needs to be done every five years or 30,000 miles.
What are the signs of a defective radiator?

There are a few warning signs that indicate your radiator is going bad and might need replacement parts. Ignoring these warning signs could lead to serious issues with your vehicle, including breakdowns. You may have an issue with your radiator if you notice any of the following:

  • A coolant leak: If you see a puddle underneath your car after it has been parked and stopped for a while, this may indicate a radiator leak, especially if it’s a colored liquid.
  • The coolant level dropping: If you are adding coolant to your radiator frequently, this could indicate a smaller leak.
  • Overheating: If your Nissan Sentra is consistently overheating, this may indicate a problem with the radiator or another part of the car’s cooling system.