How do you fix an evaporative emission control system leak in a Dodge Durango?

Answer 1

The most common leaks come from 5/16" vacuum lines that go from the evaporative purge solenoid to the intake manifold. If you look on the driver's side fenderwell, you will see the main fuse box. In front and under this black box, there are two lines that run to the engine. These lines get brittle with age and crack and leak. Sometimes you can listen top the engine run with the hood up, and actually hear the leak and pinpoint the source.

Also check the hoses in front of the fuel tank underneath.