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code 186

  1. D

    Intermittent CEL Code 186

    Stock 94 Explorer XLT 4.0L Auto 176,000 miles. The CEL comes on after about 15 minutes of driving. Sometimes it goes off for seconds to minutes then comes on again. Then it usually stays on. I shut the engine off and restart, and the same CEL sequence repeats. There appears to be no difference...
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