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Chevrolet
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2002
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Blazer 4D Utility, 4WD, Part Time
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Controls Self-Diagnostics - 4.3L
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Diagnostic Tests
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DTC P0128: ECT Less Than Thermostat Regulating Temperature
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Conditions For Setting DTC
Conditions For Setting DTC
The length of time for the engine coolant to reach a preset temperature has been exceeded.