There are a few run downs on this it is a problem with the Evap purge valve. Im not sure where they are located on the NNBS chevies i know in the NBS trucks its on the frame rail and they will get plugged. It isnt anything that is going to cause damage, but getting it fixed is good for the emissions.
---------- Post added at 12:19 PM ---------- Previous post was at 12:15 PM ----------
Also from a little digging i would see if you just didnt tighten the gas cap as well.
---------- Post added at 12:19 PM ---------- Previous post was at 12:15 PM ----------
Also from a little digging i would see if you just didnt tighten the gas cap as well.
