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  1. J

    Running rough, black smoke

    1043424 my jeep has only travelled 40,000km and isn't using any oil. Where would I find the oxygen sensor and can you tell if they are faulty or do you just replace them [addsig]
  2. J

    Running rough, black smoke

    1043405 Hi, I'm a new jeep owner and have a few problems with my 94 4.0l cherokee. It starts first time, but runs rough at idle and low speeds and cuts out when running downhill or when stopping at lights, and produces lots of black smoke from the exhaust. The check engine light comes on for...
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