How long do Subaru thermostats last?
Subaru thermostats typically last between 60,000 to 100,000 miles, or approximately 5 to 10 years, before they may need to be replaced. However, the actual lifespan can vary depending on driving conditions, maintenance, and other factors.
Understanding Subaru Thermostat Lifespan
The thermostat in a Subaru vehicle plays a crucial role in regulating the engine's operating temperature. It opens and closes to allow coolant to circulate through the engine, helping to maintain the optimal temperature for efficient and reliable performance.
Subaru thermostats are designed to be durable and long-lasting, but like any mechanical component, they can wear out over time. Factors that can affect a Subaru thermostat's lifespan include:
- Driving Conditions: Frequent towing, hauling heavy loads, or driving in extreme temperatures can put additional stress on the thermostat and shorten its lifespan.
- Maintenance: Regular coolant flushes and keeping the cooling system in good condition can help extend the thermostat's lifespan.
- Manufacturing Quality: The quality of the thermostat itself, as well as the materials used in its construction, can impact its durability.
While the average lifespan of a Subaru thermostat is 60,000 to 100,000 miles, it's important to monitor the performance of your vehicle's cooling system and replace the thermostat if it begins to malfunction, such as by causing the engine to run too hot or too cold.
Symptoms of a Failing Subaru Thermostat
Some common signs that a Subaru thermostat may be failing include:
- Fluctuating Engine Temperature: If the engine temperature is constantly changing or the temperature gauge is erratic, it could indicate a problem with the thermostat.
- Slow Warm-Up: If the engine takes an unusually long time to reach its normal operating temperature, the thermostat may be stuck closed.
- Overheating: If the engine is running hotter than normal, the thermostat may be stuck open, allowing coolant to circulate too freely.
- Coolant Leaks: A failing thermostat can cause coolant to leak from the housing or surrounding components.
If you notice any of these symptoms, it's important to have your Subaru's cooling system inspected by a qualified mechanic to determine the root cause and make any necessary repairs or replacements.
How often should car thermostats be replaced?
However, most car experts recommend car thermostat replacement after 10 years. However, this is an optimistic number. Thermostats are more likely to stop working much earlier than a decade. Some factors that induce an early thermostat failure include harsh weather, rough driving, bad engine or thermostat parts.
How do I know if my Subaru thermostat is bad?
Strange Sounds and Temperature Changes
You may hear rumbling, boiling, or knocking coming from the radiator. All these signs point to an issue with your car's cooling system. The thermostat also affects the temperature of air that flows in your vehicle through the vents.
When to replace a Subaru thermostat?
When to consider replacing the engine cooling system thermostat:
- Engine overheats. A thermostat with the valve stuck closed is a common cause of engine overheating.
- Temperature gauge reads too low or too high.
- Cooling system repairs.
How long does a Subaru thermostat last?
A car thermostat is designed to last a long time – typically around 100,000 miles or 10 years. However, various factors can impact its lifespan. First, driving conditions play a role. If you regularly drive in hot weather or stop-and-go traffic, your thermostat may suffer additional stress.
What is the life expectancy of a thermostat?
about 10 years
The Lifespan of a Thermostat
On average, most thermostats last about 10 years, depending on the model, usage, and proper maintenance. However, many people decide to replace their unit sooner to take advantage of new energy-saving technologies.
Do subarus have two thermostats?
And you got this little itty bitty baby one what's that about well modern subarus. Again most of them not all of them. Have two thermostats. One is for your engine coolant. And one is for your cvt.
Can a thermostat last 20 years?
On average, thermostats tend to last around 10 years with proper maintenance and care. That said, if it's been more than a decade since you installed a new thermostat, it's likely time to replace your current unit. Older models may become outdated or require more frequent repairs due to wear and tear over time.
What are the signs of a failing thermostat?
What Are the Signs of a Bad or Broken Thermostat?
- The AC or Furnace Won't Come On.
- The HVAC System Won't Turn Off.
- The Thermostat Is Unresponsive.
- The HVAC System Short-Cycles.
- The Room Temperature Doesn't Match the Thermostat Setting.
- The Programmed Settings Reset Themselves.
- Check and Adjust the Settings.
How can I tell if my cars thermostat is bad?
5 Signs Your Thermostat Is Broken
- You Notice Erratic Temperature Changes.
- You Find Incorrect Readings on the Temperature Gauge.
- Your Vehicle Makes Concerning Noises.
- You Find Coolant Leaks.
- You Notice Problems with the Heating System.
