Diesel Data
: Automotive Repair
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Chevy Truck
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1989
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C 2500 Truck 2WD V8-454 7.4L
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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 06
DTC 06
Speed Signal Schematic:
Erratic Speed Signal:
