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thanx for the help
You'll have to look for a manual on eBay or at your local auto salvage yard. You can download a manual from Chrysler but they only go back to 2004. You can buy one from Jeep too:
How To Find Your Car Owner's Manual Online
Check the air pressure in all your tires. there is at least one that is low.
The first thing I did was look at the gas cap compartment. I noticed that it was filled entirely with a persistent film of black, sooty residue. This is not normal. I then removed the gas cap and inspected it closely. Upon inspection of the underside of the cap (the white part that screws in), I noticed more black soot all around the upper seal mechanism, but mostly in two locations. I also noticed that the bottom-most seal had a spring-loaded pintle that is meant to act as a pressure-relief valve should the internal gas tank pressure go above the spring pressure. HOWEVER, THIS PINTLE APPEARED TO BE INSTALLED UPSIDE DOWN AS IT NEVER SEEMED TO SEAL AT ALL!
So I disassembled the entire gas cap. I cleaned all the parts with carb cleaner, and reassembled the cap components the way that I thought they should go together. I then re-installed the gas cap... and voila'. The car is now a joy to drive. The hesitation - gone! The poor shifting - gone! The rough idle - gone!
IT APPEARS THAT WHOEVER ASSEMBLED THE GAS CAPS FOR JEEP (AT LEAST FOR CERTAIN MODEL YEARS) ACTUALLY INSTALLED THE INTERNAL LOWER SPRING RETAINER UPSIDE DOWN!
If you have this problem, please bring it up to your Chrysler dealer. They will probably hem and haw and will not believe you, but I guarantee you that if you have been having the problems my girlfriend reported, replacing the cap with a correctly assembled version will solve the problem.
Good luck, as most OEMs are not very good at admitting their mistakes.
I'have just did what you said, i'll see later wat's going on, i'll let you know
Thanks in advance.
Try this (I posted this here some time back:
This is how I read the codes on my wife's 03 Jeep Liberty.
1) Insert key and turn forward as if to turn on car, but DON'T turn on. You will hear the chimes.
2) Turn back to original position.
3) Do this 3 times.
4) On 3rd time leave key in forward position (do not turn on), the car will chime. Look at the odometer section beneath the speedometer, I believe. Otherwise, look under the tachometer, there should be a small digital display as well. If there is a code, it will appear there starting with the letter "P"..ie P0122, P0171...etc.
This is off the top of my head since I am not in front of the vehicle. Our 03 Liberty had a stalling/rough idle that gave a code of P0122 (throttle position sensor) I ordered the part based on that code, swapped the part and the car runs great now. Hope this helps.
On thing I have noticed on this car. all the hoses on this car are rotting very quickly. Most problems I have had with this car have been results of rotting hoses. Some I fixed by replacement, others.....good old duct tape. The other problem is the severe rust on the rear.
See if it registers a code. Otherwise, you have a real frustrating mystery on your hands.
THanks!
If you have found any new information about this problem, will you please let me know and I will do the same for you.
I looked in the engine compartment today and noticed wires that plugged into a sensor (?) on each side of the fan shroud. One of those plugs was partly unplugged. Any chance this could be the source of my problem?