07 Gmc Yukon Transmission

I am having electrical issue with 2001 gmc yukon xl 1500. my wife Gmc yukon p0455 code p0442 evap system Gmc yukon p0455: evap system large leak detected diagnosis

I am having electrical issue with 2001 GMC Yukon XL 1500. My wife

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GMC Yukon P0455: EVAP System Large Leak Detected Diagnosis | Drivetrain

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GMC Yukon P0440: Evaporative Emission Control System Malfunction

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I am having electrical issue with 2001 GMC Yukon XL 1500. My wife