CEL P0455 (Evap emission leak)

[JDMitchell]

My CEL came on last time I drove my Expedition and it was to late in the day for me to do anything about it so I just parked it in my driveway and left it until today. There was no noticeable loss in power or any other indications of a problem except for the CEL being illuminated. After scanning it, code # P0455 came up, which is Evaporative emission (gross leak). I have done some research and came up with a couple options.

1. Gas cap

2. Evaporative emissions canister purge valve

3. Some sort of vacuum leak (doubtful)

4. (I think this is it) Offroading last week at an extreme angle far enough to have fuel leak out of the fuel cap (pic below) and caused the CEL.

I cleared the code and it has not come back. I will keep my eyes on it for now but I am not very worried about it. If you have this happen to you now you can know where to start. Also if you have had this happen post up with your fix.

 

[SOLISIMO]

Soo much for that government short cut you took theyll get you somehow

 

[JDMitchell]

Nope they haven't gotten me. The light is off and I am not losing any sleep over it. But it does give me an excuse to pull the rear cats and put on a Flowmaster 40. I told my wife that the "CEL is because of the exhaust so it really needs to be replaced."

 

[SOLISIMO]

Nope they haven't gotten me. The light is off and I am not losing any sleep over it. But it does give me an excuse to pull the rear cats and put on a Flowmaster 40. I told my wife that the "CEL is because of the exhaust so it really needs to be replaced."

Smart man

 

[Soldier777]

Like you said sinceyou cleared it and it has not come back why loose sleep

 

[walnuts4x4]

Nope they haven't gotten me. The light is off and I am not losing any sleep over it. But it does give me an excuse to pull the rear cats and put on a Flowmaster 40. I told my wife that the "CEL is because of the exhaust so it really needs to be replaced."

that is a great plan... lol

 

[JDMitchell]

Now I just need to keep her from reading this thread so I can find a good exhaust shop and get it done.

 

[SOLISIMO]

Bump to the top for the wife to read.

 

[JDMitchell]

Bump to the top for the wife to read.

I don't think I have to worry about her getting on here, but she was bugging me the other day to show her the mud hole pics I posted, so I might have to start closing this forum down when I am done.

 

[SOLISIMO]

 

[walnuts4x4]

funniest thing.... my neon had its CEL on and got it scanned.... same exact code...lol mine was a loose gas cap...


RE-BUMP FOR THE WIFE....lol

 

[panda24619]

thats funny. i wish i could do that. maybe i should. the reason i do stuff to my rig is safety. bed liner, lights, crap like that. haha well i havent done anything to extreme for funn much to her. other then the new amp.