2005 GMC Sierra 1500 5.3L MIL Lamp on
truck keeps throwing PO446 code replaced vent solenoid and carbon canister as both were full of dirt and would not close solenoid has been back twice now for same code we can hear click (open/close) with scanner vent should be working Thanks for your help we d...
FIX posted 9/28/2011
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Message Closed w/FIX
Vehicle Data2005 GMC Sierra 1500
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2005 GMC Sierra 1500
VIN | 132FDOI1CD |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | Fuel Injection / Fuel injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always, Cold |
Trouble Codes
P0446 | EVAP Vent Control System Performance |