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Q: where is the thermostat housing?

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I am trying to replace the thermostat but cant find the housing for it.

My car has 178000 miles.
My car has an automatic transmission.

Hello, thanks for writing in about your Pontiac G6. To replace your thermostat, all you have to do is follow the upper radiator hose to the left side of the motor, above the A/C compressor, and you will see the thermostat housing. If you run into any issues or need some assistance with this, consider YourMechanic, as a certified technician can come to your home and properly replace your thermostat.

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