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Repair information for the sixth-generation Nissan Altima, covering model years 2019 to present.

How do I replace a thermostat?

Where is the thermostat located and how do I replace it?

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Hi @clinton38566

What is the engine size and which thermostat do you need to replace?

Reason for asking is the 2.5L engine has 2 thermostats whereas the 2.0L engine only has 1.

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3 Comments:

It's the 2.5L. I believe its the main engine thermostat, since its the one that works with the heater core. I currently don't have heat in the car and was advised that this is most likely the reason.

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@clinton38566

The video in the blue link above shows a thermostat in the engine block being replaced at 3:26 minutes

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@jayeff Thank you. I'll check it out.

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