2006 Saturn Ion check engine light on

2006 SATURN ION
134,000 MILES
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JOE1953
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on my 2006 Saturn Ion 2 sometime the check engine light come on and go of and i took the car to autozone and they read the code and it have a Troubleshooting code #po128 Thermostat defective where is the Thermostat located on this 2006 Saturn Ion 2 car and how do i replace it are repair it?
Sep 16, 2013 at 7:34 PM
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SATURNTECH9
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If you follow the upper radiator hose to the engine then follow it back you will see the thermostat housing.Drain the coolant and unbolt the housing and replace the thermostat.
Sep 16, 2013 at 7:58 PM