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Home >> Chevrolet >> 2003 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> ENGINE CONTROLS - SELF-DIAGNOSTICS - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline >> Diagnostic Tests >> DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow >> Diagnostic Procedure

Diagnostic Procedure

Fig 1: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 1-3)
G00241395Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 4-13)
G00241396Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 14-19)
G00241397Courtesy of GENERAL MOTORS CORP.