How do I know if my Subaru Outback thermostat is bad?

To determine if your Subaru Outback thermostat is bad, you can look out for the following symptoms:
1. No heat: If you’re experiencing a lack of heat in your Subaru Outback, it could be a sign of a faulty thermostat.
2. Spiked temperature gauge: If the temperature gauge on your dashboard shows sudden and extreme fluctuations, it may indicate a problem with the thermostat.
3. Blown head gasket: A bad thermostat can cause the engine to overheat, which can lead to a blown head gasket.
If you notice any of these symptoms, it is recommended to have your thermostat inspected and replaced if necessary. It’s important to address thermostat issues promptly to prevent further damage to your vehicle.
Please note that these symptoms are general indicators and may not be exclusive to a bad thermostat. It’s always a good idea to consult with a qualified mechanic or dealership for a proper diagnosis and repair.
I hope this helps! Let me know if you have any other questions.

How long do Subaru thermostats last?

How long does a car radiator thermostat last? There is not a set time for the car radiator to stop working. However, most car experts recommend car thermostat replacement after 10 years.

How can you tell if a thermostat is bad without removing it?

A bad thermostat can be detected when your AC or furnace is not turning on, your HVAC systems are not turning off, the thermostat not responding, your HVAC system is short-cycling, the room temperature not matching the temperature displayed on the thermostat, and the programmed setting resetting themselves.

How do I know if my Subaru thermostat is bad?

If the engine runs too hot or cool, you might have a bad thermostat on your hands. You can check a thermostat for problems by examining the upper radiator hose’s temperature after the engine has warmed up. You should replace a bad thermostat immediately and avoid driving without one until you get a replacement part.

How do I know I need a new thermostat in my car?

Signs My Car’s Thermostat Is Going Bad or Has Failed Completely

1. Odd Temperature Gauge Readings. Your temperature gauge should register cold when you first start your car and slowly build up to normal as the engine warms up.
2. Air Temperature Changes.
3. Coolant Leaks.
4. Strange Sounds.
5. Heater Problems.

How do you tell if the thermostat is stuck closed?

If you see the coolant flowing through the radiator, then the thermostat opened and is working properly. If not, then it is most likely stuck closed. If you can’t tell if the coolant in the radiator is flowing, shine a flashlight inside so you can see it better.

How do you test a Subaru thermostat?

Drive the Subaru for 10 minutes or allow it to remain in ‘Park’ at 1,500 RPMS. While it is running this way, pop open the hood and check whether both heater hoses and upper radiator hose is at a similar temperature of 160-190 degrees.

How do I know if my car needs a new thermostat?

If the air temperature goes from hot to cold or cold to hot, this is a sign that your thermostat is not working properly. Oftentimes, these temperature changes are erratic and sudden. It’s important to have your vehicle inspected when you experience these interior temperature changes.

Can you look at a car thermostat and tell if its bad?

Look at the needle on the thermostat gauge and see whether it moves slowly before it stops before the normal point on the gauge. If this is the case, then crank up the heater to see if it blows hot or cold air. If it blows cold air, then most likely the thermostat is broken.

What are the symptoms of a faulty thermostat?

Watch for These 9 Signs of a Thermostat Going Bad

• The screen is dead.
• The actual temperature doesn’t match the display.
• Your AC or heater is stuck on.
• Your heating and cooling won’t turn on.
• Your HVAC is short cycling.
• Scheduled settings stop working.
• Nothing happens when you adjust the settings.
• Temperatures shift.

Can you test if a thermostat is bad?

And if you don’t see any air movement the next step would be to keep on heat or cool it doesn’t matter but switch the fan from auto position to on position. With this setting your fan should start