Chrysler Repair: AM HAVING PROBLEMS WITH MY..., chrysler sebring, vacuum hose

Question
AM HAVING PROBLEMS WITH MY CHRYSLER SEBRING IT AN 1997 LX 2.5 ENGINE AND THE ENGINE LIGHT STAY ON. IT SAY CHECK ENGINE SO I WENT TO AUTO ZONE AND SERVERAL OTHER PLACES AND THEY ALL ARE SAYING THE SAME THING ABOUT MY CAR I AM HAVE MULTI CYL MIS FIRE, AND CKT NO ACTIVE BANK ONE AND CYL MIS FIRE 5,6 ALSO MY CKT OXGEN ALSO AN EVAB LEAK
WHICH CAN'T NO ONE EXPLAIN TO ME WHAT IS AN EV LEAK. PLEASE HELP ME
I'VE JUST GOTTEN A TUNE -UP SO I DON'T UNDERSTAND
ALSO THERE A HUM IN MY CAR

THANK YOU
THE PARTS THEY SAY I NEED ARE
PO300 RANDON MULT CYL, PO140 02 SENSOR, CYL MIS FIRE 5,.

Answer
Hi Brenda,
As my expertise statement reports, I am more familiar with cars up to 1995, but I will try to give you what help I can on your 1997 Sebring.
First, I am unclear about which engine your car has: it appears to be 6 cylinders but you say it is a 2.5 which I believe to be a 4 cylinder engine. Is it perhaps a 3.0L V6 engine?
Second: what does "CKT" mean? I tried 'circuit', but that doesn't quite explain what you are telling me.
Third, the EVAB of EV leak, sounds to me like a vacuum hose [(or a fitting that connects a hose between the fuel vapor canister or the control solenoid or the fuel tank, or the intake manifold) that is part of the system that collects vaporized fuel when the car is parked, stores it, and then burns it in the engine when you next use the car] is not air-tight (e.g. it leaks fuel vapor). The canister is located inside the engine compartment, on the passenger side front corner of the compartment. You will see the top of it only usually, but it is round and has two or three small rubber hoses attached to it. If you will trace those hoses anywhere and everywhere they go, looking for one of them to be loose or cracked, and then repair the problem that will solve the EVAP leak.
On the parts that you need, I don't know what numbers you are referring to (is that an autozone part number?), and I don't know what a "Randon Mult cyl" means, can you try that one again? The O2 sensor I understand, and that is a common part for failing after you have put 50,000 or more miles on the engine. So if the computer readout says there is something wrong with the 02 sensor it would probably be worth replacing that.
The missing on multipe cylinders and no active bank sounds like it has to do with the electrical control of some of the fuel injectors, or with the injector(s) themselves.
I would be inclined, given all of these problems, to take the car to a Chrysler dealer and have them do a tune-up because they know the engine and the control system for the fuel, spark, and evap systems better than a general repair shop that handles many different makes of car.
What you might do now, to help me more, is perform a readout of the controller to see whether it has recognized faults in the operation of the engine and stored these in the form of fault codes. Generally you can readout the codes by turning the ignition key "on-off-on-off-on" and leave it "on", quickly (no longer than 5 seconds). Then watch the check engine light to begin to flash, pause, flash, pause, etc. Count the number of flashes before each pause, and make a mental note or write them down. The last two groups of flashes should be 5 in each. Then respond to me as to the numbers of flashes that you wrote down and I'll tell you what the code means and what might be wrong. It doesn't tell you exactly what is wrong, but gives you a clue as to where to look for the answer.
Roland