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P0440 Diagnostic Trouble Code Discussion for March 2013

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2002 GMC Envoy SLE 4.2L Excessive Emissions, MIL Lamp on VIN: 1GKDT13S22
P0440: EVAP System Malfunction. Need some help on this job.has p0440-large leak evap.tested the vent solenoid and failed/cleared code and delivered to customer.returned a few days later with same code-p0440. Does not have service bay test for evap system in tech 2. Did have a purge and seal....
March 08, 2013
2003 Chevrolet Trailblazer LT 4.2L MIL Lamp on
P0440: EVAP System Malfunction. ... to smog test coming up So the truck functions fine, it doesn't give me horrible gas mileage neither does it hesitate nor take more than a second t start up, everything functions fine beside the CEL light for p0440 (evap malfunction) I have checked all the ...
March 29, 2013