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P0440 Diagnostic Trouble Code Discussion for December 2006

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2000 Chevrolet Impala 3.8L MIL Lamp on VIN: 2G1WF55K9Y
P0440: EVAP System No Flow During Purge. Greetings to all,this chevy will set a code for the evap system.I have smoked the system and all looks good as far as leaks go.I have went and tested the fuel cap and that also checks good.The code is po440 evap system,looking at the flow chart it says to chec...
December 07, 2006