Diagnostic Procedure

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Fig 1: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 1-3)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 4-13)

Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC P0455: EVAP System Leak Detected - Gross Leak/No Flow (Steps 14-19)

Courtesy of GENERAL MOTORS CORP.