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Why is Your 2018 Nissan Pathfinder Overheating in Sammamish, Washington?
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(Posted on Mar 16, 2019 at 06:59AM by Robert Bacon)

Dear Robert,

My 2018 Nissan Pathfinder has started overheating. I've heard this could be down to a problem with the thermostat: what do you think?

Thanks,
Andrew

Hi, Andrew!

Iâ€™m sorry to hear about the problem with your 2018 Nissan Pathfinder. A number of things could cause an engine to overheat, one of them is a malfunctioning thermostat.

Your thermostat monitors your engineâ€™s temperature and opens a valve to circulate coolant when itâ€™s necessary: this process usually happens at around 212 degrees Fahrenheit.

If your carâ€™s thermostat is broken, it may not open the valve when necessary. This deprives the engine of its much-needed coolant and ultimately results in the drivetrain overheating.

If your car overheats it can lead to catastrophic engine failure, as components seize together due to the extreme heat. A broken thermostat isnâ€™t the only problem that might cause this, having air in the coolant line or a lack of oil could also be to blame.

You should call down to our Service Department and let the Technicians inspect your Pathfinder.

Thanks for the question, Andrew! Donâ€™t hesitate to contact Kirkland Nissan, Washington if you ever need anything else.