I smell fuel after turning off engine on a 2004 chrysler concord. what is this problem and how do i repair?

SOURCE: rough idle and check engine light concord

Check your EGR valve and your IAC Idle Air Control valve make sure both are functioning correctly

SOURCE: what is a engine code 55??

Code 55 means 'End of code read-out', but not actually giving you any errors.
Seems to me though that it may have something to do with the fuel pump seeing as banging the fuel tank made it work for a little while.
To find the real problem have a dealer or mechanic troubleshoot.

SOURCE: fuel filter for 2001 chrysler concorde

for the most part it on the driver side under the car close to the frame of the passenager side just in front of the rear tire in the frame also checkout this website to see if they have your car listed its www.autozone.com if they do you be able to get pictures and diagram showing you where its located on your car.

SOURCE: Chrysler Concorde LXI 4 door - 2004 The car starts up and seconds after, the RPM drops and the car shuts off. The code P0513 comes up on the computer.

That is a code for an invalid skim key. If you have another skim key try it. If it does the same thing then the skim module may be bad.

SOURCE: I have a 2000 chrysler concorde that the engine light just popped on - the error codes are po302, po420, po340

P0302-cylinder #2 misfire detected
P0420- catalyst efficiency below threshold bank 1
P0340-No cam signal at PCM.
The Cam sensor most likely needs to be replaced first. Clear the codes after that and drive and see what comes back on.