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2003
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Excursion 2WD V8-6.0L DSL Turbo
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Testing and Inspection
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Diagnostic Trouble Code Tests and Associated Procedures
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P Code Charts
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P4057
P4057
PINPOINT TEST Z: THE CHECK FUEL CAP INDICATOR IS INOPERATIVE/ALWAYS ON
Test Z1-Z3:
Test Z4:
