2009 Chevrolet Silverado 1500 Q&A

2009 Chevrolet Silverado 1500 Question: where is the evap. sensor relay on 09 silverado

I getting the code p0449 and going to try and see if a new evap. sensor relay will fix it but I'm not sure where it is I'm thinking it's by the gas tank. I'ts a 09 silverado ext. cab with a 5.3 Any help would be helpful. Thank you -
Answer 1
There is a TSB : SB-02-06-04-0371 issue date 2010-09-01 vent valve solenoid assem. replacement and filter box relocation. Call dealer for further details. TSB= Tehnical Service Bulletin.... (this is not a recall) -