Gapafudus
Active Member
Hey guys I got another question. I got a P0455 code which is a emission leak, but I don't have a smoke test to see exactly where it leaks. Does anybody had this problem before? What did u do to fix it? I changed the gas cap and it's still there. Also a strange thing happens with my truck, not every time I drive it, but some times. When I am stopped at a light and then proceed to move, when I get at around 30 mph my truck makes a weird loud noise, like a roar or a growl, like it revs up or maybe even like a engine brake on a semitrucks. When I press the break and then press the gas pedal, the sound is gone. Any idea what this may be? It is an 03 Expy, 5.4L, 2WD.