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P0440 Diagnostic Trouble Code Discussion for October 2009

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2005 Dodge Caravan SE 2.4L MIL Lamp on VIN: 1D4GP24R95
P0440: General EVAP System Failure. ... easy one!!! Customer referred to our shop by conversion van company. They delivered and said that the CEL was on. We found evap code P0440. Ran EVAP Bay test with DRB and system failed. We ran a smoke test and found hoses at NVLD pump had no clamps and wer...
October 06, 2009
2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12481
P0440: EVAP System Malfunction. car came in code p0440 tech checked wires at rear axle then replaced evap vent valve and purge valve, car came back tech replaced gas cap, car came back i told him to check tank for leak at sender he failed to find one replaced tank pressure sensor, car came b...
October 12, 2009
2001 Oldsmobile Alero GL 2.4L Poor Idle Quality VIN: 1G3NL52T31
P0440: EVAP System No Flow During Purge. This car came in for a leaking fuel press. regulator. We also noticed that idle was high so customer said to go ahead and fix. Have replaced IAC motor, new motor actually made idle increase even more. Check tps with scope, normal. Checked for vaccume leak, non...
October 30, 2009
1996 Pontiac Sunfire SE 2.2L MIL Lamp on VIN: 3G2J35249T
P0440: EVAP System Malfunction. The only way the code will clear is to disconnect the battery, connect the two cables together and let set for a minimum of 1 hour. The system shows no leaks and both vent & purge valves respond to commands. Both valves were replaced with new to verify the...
October 30, 2009