Recently when I start up my 05 supercrew I get a smell of gas it usually goes away pretty quick but sometimes it hangs around for awhile. Also when I got on the freeway a while back and a friend was following he said I put out a puff of black smoke. Sounds like i am running rich but I dont know about the smell. Any I deas before I take it in? Oh yea I have a 5.4 with 32,000 miles. Thanks

 

I had that problem a while back. Just light a match and it should take care of it. Seriously though I know this issue has been brought up on here and fixed by the dealer before, so I am sure others will chime in with something more useful than a comment like mine!

 

Dont think I havnt thought of it. I tried to do a search but came up empty.

 

your cats may not be functioning properly. check for exhaust leaks too.

 

Check the vapor canister, the purge valve may not be operating correctly and it's dumping excess fuel vapor into the engine.