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Hummer
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2010
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H3 V8-5.3L
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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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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Engine Fails To Reach Normal Operating Temperature
Engine Fails To Reach Normal Operating Temperature
Engine Fails To Reach Normal Operating Temperature
Diagnostic Aids
The engine may fail to reach normal operating temperature due to an intermittent operation of the thermostat.
