Join Now
International Automotive Technicians Network

P0440 Diagnostic Trouble Code Discussion for July 2011

General EVAP System Failure


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2000 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52K8Y
P0440: EVAP System Malfunction. This vehicle has had a reoccuring P0440 code. The owner has had the Purge valve, vent valve and filler neck replaced but states the code keeps coming back. I confirmed the P0440 code and did a Evap leak/smoke test and found no leaks. Here is how I performed t...
July 15, 2011
2004 Jeep Liberty Limited 3.7L MIL Lamp on VIN: 1J4GL5874W
P0440: General EVAP System Failure. cannot seem to nail this one down ...found faulty nvld first time around and cockily called it fixed even though i wasnt able to run evap monitor. admittedly threw a gas cap at it on 5:00 on friday when cust showed up with mil on again and hoped for the best.i...
July 15, 2011
2000 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52K8Y
P0440: EVAP System Malfunction. This vehicle has had a reoccuring P0440 code. The owner has had the Purge valve, vent valve and filler neck replaced but states the code keeps coming back. I confirmed the P0440 code and did a Evap leak/smoke test and found no leaks. Here is how I performed t...
July 15, 2011
2004 Jeep Liberty Limited 3.7L MIL Lamp on VIN: 1J4GL5874W
P0440: General EVAP System Failure. cannot seem to nail this one down ...found faulty nvld first time around and cockily called it fixed even though i wasnt able to run evap monitor. admittedly threw a gas cap at it on 5:00 on friday when cust showed up with mil on again and hoped for the best.i...
July 15, 2011