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P0440 Diagnostic Trouble Code Discussion for April 2007

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2000 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NF12T6Y
P0440: EVAP System No Flow During Purge. We have had this vehicle for some time, customer finally traded in after so many problems diagnosing this concern. Withscan tool connected fuel pump relay isnt engaging all the time, when fuel pump relay is in off state vehicle wont start, intermittantaly the ...
April 20, 2007
2000 Pontiac Bonneville SSEi 3.8L MIL Lamp on VIN: 1G2HZ5419Y
P0440: EVAP System Malfunction. Code p0440 came back after replacing gas cap with an aftermarket one. not sure if cap itself is still casuing code, dose the code just want facroty cap? visual inspection turned up nothing amiss. smoked the system,no leaks seen except cannister vent solonoid. ...
April 25, 2007
1999 Oldsmobile Silhouette Premiere 3.4L MIL Lamp on VIN: 1GHDX03EXX
P0440: EVAP System No Flow During Purge. ... shop from other dealer. it have the code p0440 evap control system. don't know much of the history . only one code. visual check found nothing . cap gas is tightned. anyone have seen this code before. no leak with smoke machine. please help. from the histo...
April 26, 2007