scheduled

  1. ron.dittmer

    2006 Liberty 4x4 with 3.7L - Scheduled Maintenance Is Critical

    We own a 2006 Liberty Sport 4x4 with the 3.7L gas engine, now with 87,000 miles. We bought it used in 2009 with 29,000 miles. I have been real good with maintaining the vehicle.....or so I thought. One thing that surprised me about the 3.7L engine is the scheduled frequency the spark plugs...

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