I have a 2002 jeep liberty I went out to start it this morning but all it would do was turn over but not start Then i went to try it again but now it wont do nothing i charge thebattery up the lights and every thing else works but when i turn the key over it wont do nothing

SOURCE: oil pressure light on and wont start

Well I had the same problem and wow was I surprised man. I have a code machine that plugs into my car and tells me what wrong with it then I fix it. It read that I had a misfire #1 so that means my spark plug is dirty or something like that. When I took off the spark plug it was smashed in that was a good sign.. I called a mechanic friend of mine and he said that my head and piston were damaged but would not really know unless he took it apart. What he said was true and cost me a great deal of money..!!!! Now searching the web I have found that there many jeep liberty with the same problem just different spark plug locations so I wonder if Jeep knows of this issue but will not acknowledge it.. If you need more information please email me at [email protected]

Check out this link regarding your issue..!!

SOURCE: Guages when crazy. Now won't even try to start.

You likely have it repaired by now but it sounds like a classic case of oxidized battery or cable connection (sometimes mis-diagnosed as bad battery but cured with new (clean) battery)

SOURCE: I have 2002 Jeep Liberty (Sport) - won't start!

Your security system could have a problem, replace battery in keyless remote. If not helping you may have to take it somewhere and have security system checked

SOURCE: Jeep liberty 2002.....ignition key lock

Most commonly it is the key is worn out. If you have a spare key or your current one is not too badly worn, have a copy of it made and try it in the switch. You will have to have the copy key "coded" so it will disable the anti-theft system in order for the engine to start. If the new key doesn't fix your problem, you will have to replace the tumbler assembly.

SOURCE: 2008 Jeep Liberty Won't Start and Sentry Key doesn't work.

check battery connections especially the ground