I'm from PA and just purchased an 05 diesel Liberty. The jeep seems like the previous owner took great care of it. So far from the tags under the hood i've learned its got a GDE tune and CCV filter. I've read a lot of posts in here during the last few weeks. Aside from the fuel filter and air filter thats a year old, I don't know where to start considering the previous owner may have already done a lot of the suggested things. If it hasn't already been done i'd like to get rid of that EGR and keep this thing running for awhile.

Welcome to LOST
Seems like you've picked up a fairly well kept KJ
Enjoy!!

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited