The case
Engine smoked and shut off while driving — failed fuel injector scored the cylinders; engine AND transmission replaced on one visit
Our client leased a new 2023 Jeep Wrangler 4xe plug-in hybrid. At about 28,900 miles, the engine started smoking while driving, the check engine light came on, and the engine shut off.
The dealer found about a quart of fuel in the engine oil and low compression on every cylinder. A failed fuel injector had scored the cylinder walls, so the entire long block was replaced. During that repair, technicians also found a porous transmission case leaking fluid, and the transmission was replaced as well. A rear differential locker sensor was replaced on the same visit.