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GMC Truck
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2010
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Yukon 2WD V8-5.3L
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Thermostat, Engine Cooling
Thermostat, Engine Cooling
At 87°C (188°F) the thermostat should begin to open.
At 97°C (206°F) the thermostat should be fully open.