First be sure the gas cap is tight.
The evap pump sits under the floor by the driver's feet. Start by checking around it for ripped or loose hoses. Large leaks can often be seen. Small evap leaks are easiest to find by using a smoke machine. It forces white smoke up to 2 pounds of pressure into the system, then you just look the system over to see where the smoke is coming out.
Tuesday, October 20th, 2009 AT 1:31 AM