OBD-II Diagnostic Trouble Code
P0440
Evaporative Emission System
P
Powertrain
engine / trans
engine / trans
0
Generic
SAE standard
SAE standard
4
Auxiliary emission controls
40
Evaporative Emission System
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Ram
System
Powertrain
Model
RAM 1500
Years
2002-2008