Driver had 50,000 miles maintenance service scheduled when the engine light went on a week prior to the service date. Therefore she asked the mechanic to do a diagnostic check on engine and mechanic at the Jeep dealership reported list of problems which solutions found which include: Replace Thermostat and holding Replace Vacuum Pump Replacing U-Joint Replacing All Ball Joints Replacing Front Axle Seals Replacing Both Shocks Replacing Engine Oil cooler Driver has been working from home for 6 years and the wrangler is driven on weekends and never done off roading. Jeep was purchased new in 2016.