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2010 Chevrolet Express 1500 4.3L Need pass emissions
Posted to GM Driveability on 7/27/2026 3 Replies

So i been dealing with this vehicle for a while at the begining i was diagnosing p0455 but after testing found torn fuel tank filler hose ,gas cap seal with cracks ,tested and pass,no leaks with smoke machine perform seal test with scanner at evap and pass...

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car Vehicle Data

2010 Chevrolet Express 1500

VIN 1GCUGADX3A
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsNeed Pass Emissions
OccursAlways

Trouble Codes

P0442EVAP System Small Leak Detected
Open Help Request

car Vehicle Data

2010 Chevrolet Express 1500

VIN 1GCUGADX3A
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsNeed Pass Emissions
OccursAlways

Trouble Codes

P0442EVAP System Small Leak Detected