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Q: why is the check engine light flashing, no power, cylinder misfiring please help on 2003 Jeep Liberty

this is the first time it has done this
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DON'T drive it like that!! The MIL flashing indicates that catalyst damage is likely. Pull plugs and inspect , Keep in order , they may aid in diagnostics. Follow ebans777 suggestions for further troubleshooting.
seek diagnostic, i would have compression test first, what cylinder misfires? check plugs, wires/coils.
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