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Home >> Buick >> 2003 >> Regal GS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0440: EVAP System >> Diagnostic Procedures
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Diagnostic Procedures

Fig 1: DTC P0440: Evaporative Emissions System (Steps 1-4)
G00250402Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0440: Evaporative Emissions System (Steps 5-13)
G00250403Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0440: Evaporative Emissions System (Steps 14-20)
G00250404Courtesy of GENERAL MOTORS CORP.
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