Each code is indicating there is a leak. Check the rubber hoses at the cannister in front of the fuel tank or the lines at the evap test port in the engine compartment right beside the battery. Check the lines at the connections, they might dry rotted.
If you find no problems, here is what you have to do. Take the truck to a shop and have them fog the system. What they will do is fill the EVAP system with fog. Wherever the leak is, the fog will escape and you'll know what the problem is.
These leaks are hard to find. Let me know if you have other questions.
Joe
Nov 21, 2009 at 11:03 PM
