Recently my 2011 4.0 started having a vibration when running. The exhaust sounds like it’s running on 5 cylinders. Changed the plugs, wires and coil with no difference. Anyone know what this could be?
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Light works but isn’t illuminated. I put a reader in anyway and noticed a U2023 code but it seemed like that was transfer case related and not engine related.Is the check engine light on, does the check engine light work ?