Question about 2007 Pontiac Montana
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Posted on Jan 02, 2017
check the coolant level fiirst...if that is low it wont give you any heat.....to change the thermostat you have to follow the top radiator hose to the engine.at the send of it you will see a clamp take it loose...then you will see the thermostat housing its held in place by 2 bolts . once you remove them you have the thermostat....make sure you clean all the old gasket material off both the housing and mount.also make sure you get a new gasket.
Posted on Jan 29, 2009
Yes, it can be removed and run without the thermostat. However, your gas mileage will suffer and the heater may not work very well.
Posted on Apr 29, 2009
I believe the Montana has a 3.4 Liter V6 Engine.
This thermostat is located under the exhaust "crossover" pipe that runs between both the front and rear cylinder heads. Divers side.
Remove the heat shields (10mm bolts) and then the nuts on the exhaust studs. (6 total)
Two bolts hold the T stat housing to the intake.
Posted on Feb 24, 2010
Testimonial: "thankyou for this information, Do I need to remove the throtle above the thermostat housing?"
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