FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Kia
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2004
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Optima V6-2.7L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Thermostat
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Specifications
Thermostat: Specifications
Valve Opening Temperature
80-84 Degrees C
Full Opening Temperature
95 Degrees C