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Chevy Truck
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1992
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G 20 Van V8-305 5.0L
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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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Manufacturer Code Charts
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DTC 03
DTC 03
Fig. 29 Code 3 Diagnosis (Open Dump Valve Or ECU Malfunction). 1992:
