20 Most Recent 2003 Jeep Liberty - Page 5 Questions & Answers

Possible causes - Warm Up Three Way Catalytic converter deterioration or malfunction - Exhaust system leaks - Loose front or rear HO2Ss - Faulty front heater O2 sensor - O2 sensors harness is open or shorted - O2 sensors poor electrical connection Tech notes As the code description implies the P0422 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0422 code is combined with other codes, try fixing the other codes first.

it has struts in front and shocks in rear have a professional do a front end alinement and check strut and shock perfomence they may have to road test.

the pump dies when the engine stalls or runs too slow. so, the steering has nothing to do with that , unless the pump seized, so drop the belt and start car. if car will not start, that is a no start question post it as, cranks fast but will not start. and what engine option some have diesel.

bad fuelpump, good luck . just make sure you have spark if so ,then il bet fuelpump is bad, just replace it. it is located inside fuel tank.hope this helps.

I had that problem with my 2002 Jeep Liberty and the ignition switch cracked so I had that replaced. I am not sure if that is included in the ignition lock cylinder ...

battery temperature sensor

we cant do prices., costs vary the world over, even by town and shop. this is not cuba, its the free world. nor california. LOL call all shops in town, and ask, like we must do. you never said country or town so.... this is an impossible question. and the parts vary by quality. too.

Vincent when you put the key on you have a check engine light that come on if not no power to the computer could be asd relay auto shut down or problem with the fuse box try disconnecting the battery for a minute something it reset the computer

Fuel pressure should be between 50-60 psi at the rail.

OCD , now that made my day.. ok 06 means misfire #6 cylinder in truth it means, weak combustion on #6 caused by 3 things. 1: bad spark to #6 for any reasons. 2: bad compression (weak or none) on #6 3; bad fueling to #6 (injector issues #6 or air leaks there)

2 times

Could be an injector problem. 20psi should not be enough to notice.

Simple answer but may not be your problem.
Have you checked the fluid level? Belt still on? Sometimes I've over looked a problem looking for the worse solution.

in the under dash fuse panel. use a test light to test.

in the thermostat housing what engine? posted like 100s of times now. 1000s? all cars same. the hose that gets hot first is that those that goes to the stat housing (or the one that has the housing and 2 bolts) no engine option stated so no photos but the 3.7L is posted 3 times this week. if you search .

they are actually easy to do , go on youtube and see how it is done your are on the wrong place asking these questions people on here for the most part are not pros , they seem to guess answers , I guess to get points

who told you this , no way , go onto youtube you may find you remote program on there ,

when you post question , no one on here can give you an answer if you are not specific on your question , with all the questions you are asking about this jeep you ought to take it to some one who can really help you out , you have way to many issues with the jeep that posting and not being specific with your questions you are never going to get a right answer , this jeep needs a pro to troubleshoot your issues , it cannot be done on here , go on youtube you will find much better answers on there than here ,good luck

a misfire code , could a number of things ,bad plugs , the number one thing is the cat is going bad get the codes and get back on here and post them