dakota check engine code???????
#1
![Default](https://dodgeforum.com/forum/images/icons/icon1.gif)
I have a 2002 dakota with a 3.9. I just put some sea foam through the engine to clean up the injectors. Now my check engine light with the code p0455. it is the evap system major leak. i had it reset and came back on about 3 days later. what do i need to do to fix the problem, because i know there is no leak. thanks
#3
#4
#5
![Default](https://dodgeforum.com/forum/images/icons/icon1.gif)
EVAP major leak could also be caused by a loose fuel cap. It could also be caused by a leaking / cracked / loose vacuum hose.
I am thinking that maybe when you put the Sea-Foam in, in addition to cleaning the injectors, it also cleaned other things. This may have knocked loose dirt, grease, or grime, that was blocking a leak. This is just a semi-educated guess.
I am thinking that maybe when you put the Sea-Foam in, in addition to cleaning the injectors, it also cleaned other things. This may have knocked loose dirt, grease, or grime, that was blocking a leak. This is just a semi-educated guess.
#6
![Default](https://dodgeforum.com/forum/images/icons/icon1.gif)
ORIGINAL: JetNoise
EVAP major leak could also be caused by a loose fuel cap. It could also be caused by a leaking / cracked / loose vacuum hose.
I am thinking that maybe when you put the Sea-Foam in, in addition to cleaning the injectors, it also cleaned other things. This may have knocked loose dirt, grease, or grime, that was blocking a leak. This is just a semi-educated guess.
EVAP major leak could also be caused by a loose fuel cap. It could also be caused by a leaking / cracked / loose vacuum hose.
I am thinking that maybe when you put the Sea-Foam in, in addition to cleaning the injectors, it also cleaned other things. This may have knocked loose dirt, grease, or grime, that was blocking a leak. This is just a semi-educated guess.
Or a leaky gas cap. Try replacing that, and see what happens. Gotta start somewhere. I chased the same same code around myself and ended up the dealer. Lucky I know the guy pretty well, he just told me to replace the cap, and bring it back to reset the computer. Never came back. Just something to start with I guess.
#7