FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Chevy Truck
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1999
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Express 1 Ton Van V8-5.7L VIN R
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Diagnostics
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Failed Last Test
Failed Last Test
This message displayed indicates that the diagnostic test failed at least once within the last 40 warm-up cycles since the last time the control module cleared the DTCs.