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Ford Truck
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2008
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Explorer Sport Trac 2WD V8-4.6L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Diagnostic Trouble Code Descriptions
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P Codes
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P0139
P0139
P0139 - O2 Circuit Slow Response (Bank 1, Sensor 2):
