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2002 Chevrolet Avalanche 1500 5.3L MIL Lamp on
Posted to GM Driveability on 3/31/2025 15 Replies

Have a problem Code p0446 ( vent valve circuit ). Scanned vehicle, found fuel tank pressure sensor voltage stuck on .41 volts at all times, replaced sensor with good voltage now. Scanner shows purge at above idle and hard throttle. Bench tested purge solen...

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  Related Documents & Media  2002 Chevrolet Avalanche 1500

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Avalanche 1500

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0446EVAP Vent Control System Performance
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Avalanche 1500

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0446EVAP Vent Control System Performance