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2002
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C3500 HD 6.5 F, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Controls - 6.5L
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Diagnostic Information and Procedures
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DTC P0300
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Test Description
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Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. This step will help identify a suspected cylinder.
4. This step will identify an area with the most likely cause of failure.
Fig 1: DTC P0300
Courtesy of GENERAL MOTORS CORP.