EVAP Leak?? WTF

Steel Horse · #1 04-07-2009, 11:49 AM

How can i fix this? It can be something so easy as my gas cap not sealing right. My truck is getting 9 MPG. I need this fixed..any ideas on what this can be...anyone else have this problem? Please Help. And its causing my check engine light to be on and i cant get my inspection done. CRAP. HELP PLEASE!!

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greenmachine · #2 04-07-2009, 11:51 AM

Very rarely your gas cap. I had to replace all the rubber hoses going to my canister.

Steel Horse · #3 04-07-2009, 12:36 PM

Im assuming that solved the problem then? Anything else you had to do, or was that it?

Laramie1997 · #4 04-07-2009, 12:41 PM

So, your getting a P0441 engine code, which is a bad purge flow?
Check to make sure all your hoses are attached to the canister.
Also, If you have switched to a locking gas cap, make sure it has vents.
That was my issue, I started to get that code shortly after I went to that locking cap.
The code went away when I switched back to the stock cap.

shoe3155 · #5 04-07-2009, 12:42 PM

i had that evap system leak problem on my 01. Wasn't the gas cap go figure. Took it to my local shop and they were able to put it on a smoke machine and find the leak. One small hose leak was the issue. this could be a better option then to just start replacing hoses. Good luck.

Steel Horse · #6 04-07-2009, 12:56 PM

do you know by chacne which hose it was?

J415 · #7 04-07-2009, 01:52 PM

Quote:

Originally Posted by Laramie1997

So, your getting a P0441 engine code, which is a bad purge flow?
Check to make sure all your hoses are attached to the canister.
Also, If you have switched to a locking gas cap, make sure it has vents.
That was my issue, I started to get that code shortly after I went to that locking cap.
The code went away when I switched back to the stock cap.

When I got that code on my 97 1500, I changed the purge solenoid and the charcoal canister. Cost me 80 bucks. Hope that helps.

shoe3155 · #8 04-07-2009, 02:00 PM

it was right next to the canister

greenmachine · #9 04-07-2009, 02:24 PM

Quote:

Originally Posted by Steel Horse

Im assuming that solved the problem then? Anything else you had to do, or was that it?

Yes that fixed my problem I replaced them all instead of searching for a leak- not to mention the hoses are eight yrs old

EricCartman · #10 04-07-2009, 03:44 PM

I had several cracks in my hoses when I had this code...

The small hoses near the purge solenoid, and the big meaty fooker on the evap canister. My hoses were destroyed! I've never seen a hose look so bad - but $11 at the local parts store and it was fixed. The stealer wanted 90 bucks for the pre formed hoses... uh, no thank you!

Good luck!
Cartman