Jeep replaced the engine in our 2014 Cherokee. Here's why.
It seemed simple enough. Drop off Cars.com's long-term Cherokee at our local dealership to diagnose an occasional drivability issue and get the oil changed. Our Cherokee had thrown a tantrum a few days earlier where the 2.4-liter four-cylinder engine stalled multiple times, but, of course, it was driving perfectly fine en route to the dealership.
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We thought maybe the Jeep needed a software flash update to the engine's computer, or maybe a rat had chewed through an engine harness while the SUV sat outside in these cold Chicago temps, as had happened to our Chevrolet Volt. The last thing we expected to hear was that our Cherokee was getting a new engine at only 13,300 miles. After all, the four-cylinder didn't spectacularly fail in a burst of shattered pistons and connecting rods leaving us stranded on the side of the road. We drove the Cherokee into the service bay under its own power, as it was operating fairly normally.
What the technician found there was surprising, though: excessive amounts of oil had crept into the intake side of the engine, coating the intake manifold, hoses and an engine management sensor.