Noticed some sputtering and lack of power, plus unusually bad gas mileage.
Changed air filter, ran half a can of sea foam through vacuum line for brake booster.
Argued with morons at autozone about spark plugs, o2 sensors, and cleaner for the mass air flow sensor.
Don't know why I even bothered..... If you don't know your own inventory, why do you even bother showing up for work?
Left autozone and walked next door. Bought spark plugs and cleaner with no issues whatsoever.
Tomorrow: Change spark plugs, clean mass air flow sensor, possibly drop way too much money on O2 sensors, hopefully solve problems.
(The sea foam actually already fixed the sputtering and lack of pep. Not sure why I'm bothering with the rest other than it was great advice from a jeep mechanic and I'm hoping to get a few more MPG from it.)
2008 Jeep Liberty KK W/Selec Trac II, ADL Skid Plate Group, 245/70/16 All Terrain Destinations, VisionX LED Floodlights. It's a real jeep. Don't like it? Wait let me check. Yep, still a real jeep.