Ok, so Im 1200 miles from home. My '03 has 39,000 miles on it.
6 months ago I started off with a p0456 code (small evap leak).
Then about 3 months ago it turned into a p0442 code (medium leak).
Today it spit the p0455 code - LARGE EVAP LEAK.
I read a lot about it after I got the medium leak code, and learned that the issue was either dirty fuel, loose gas cap, dirty or loose gas cap gasket, or a cracked fuel line.
SO today I cleaned the gasket on the cap and screwed it on real good. I checked the lines coming out of the tank (as well as I could), but I see nothing wrong.
Is it time to take it to the stealership? I am not the most mechanically inclined and Im about to drive from Florida to Philly (in 5 days) and Im kind of bugging out that the issue is seemingly getting worse. THATS the part that bothers me - the code is getting incrementally worse, and I dont want to break down at South of the Border. I'll commit suicide
What should I do?