Where would the thermostat be located on a 2000 pontiac Montana van

Hi....
It is actually buried under the air cleaner.
first remove the air cleaner tube, throttle body, the thermostat is just below the throttle body in the aluminum cast housing. two bolts to remove, one was easy the other was a real $%&^!!. It is behind the exhaust cross over tube. Good luck. TIP - use WD-40 on the air cleaner tubing to get it to go back on the Throttle body. It isn't as easy as changing a thermostat sounds.

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