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Ok...this may be a little hard..! I identify the lower radiator hose, you will see two 8mm bolts attached to the thermostat housing. Like with every car, drain the coolant and do not do this with hot engine. You may need to tap the thermostat housing slightly with hammer to loose rust in bolts, geniuses at GM placed this part to close to exhaust manifold. Replaced with Stant Part # 42028 180 degrees thermostat. Only $8 at Advance auto parts. Gasket should be included or cost around $4 more. Fill the coolant reservoir, start engine, turn heater to high, add coolant as needed.

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โˆ™ 2013-12-25 13:46:14
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Q: How do you change a themostat on a 98 Pontiac sunfire 2.2 liter?
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