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Why do car thermostats go bad?
I just had to get my car’s thermostat replaced. That’s the second time I’ve had to do that with this car. The mechanic said it wasn’t related, but it seems weird that the same component should keep breaking. Why do car thermostats go bad?
Patrick Price · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Oh no! I’m so sorry to hear that your thermostat has broken twice. Most of the time a thermostat goes bad as a result of its components wearing out or becoming corroded with age.
Thermostats are usually expected to last about 10 years, so if yours is older than that, it might just be that it had the end of its lifespan.
If the last time you replaced the thermostat was less than 10 years ago, it might be that something else caused the failure. Some of the other common causes of a thermostat going bad would be issues like a valve failing or the return spring breaking.
And of course, there is always the possibility that the same component breaking twice was a mere coincidence. Either way, it certainly can be annoying to pay for the same repairs more than once.
To cover that cost, you could always use the free
Jerry
insurance broker super app
to shop policies and switch providers. Doing so only takes a minute or two and saves users $800+ a year on their car insurance
—which out to be more than enough to cover the cost of a new thermostat! View full answer
- Gregory R.
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