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GMC Truck
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1999
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W 3500 Forward L4-4.8L DSL Turbo
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
Diagnostic Trouble Code Descriptions
Manufacturer Code Charts
DTC P13
DTC P14
DTC P21
DTC P22
DTC P23
DTC P24
DTC P26
DTC P31
DTC P32
DTC P33
DTC P34
DTC P35
DTC P36
DTC P41
DTC P42
DTC P43
DTC P44
DTC P45
DTC P52
DTC P61