Thermostats
Geo Prizm

How do you replace the thermostat located on a 1990 Geo Prizm?

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2006-07-04 02:44:17
2006-07-04 02:44:17

Drain the radiator, undo the top hose from the thermostat housing, take the two bolts holding the housing onto the engine, gently tap it loose and you'll see the thermostat. Just pull it out and put the new one in. Be sure to use a new gasket. Reusing the old one isn't recommended.

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