Table 1 shows eight common engine and engine cooling related problems of the 2018 Jeep Wrangler. The number one most common problem is related to the engine and engine cooling (83 problems). The second most common problem is related to the car stall (three problems).
On March 19, 2026 I paid $5,778. 87 for repairs to my 2018 Wrangler jl. Repairs included the replacement of warped cylinder head and failed head gasket with coolant getting into the combustion chamber, showing up as rough running, misfire, flashing check engine light, and burning coolant smell. Read details...
Vehicle stalled in highway, stop and go traffic for no reason and was extremely hard to restart. A few days later, the radio and backup camera went out and came back an hour or so later. The radio, which controls all electronics and backup camera, went out again. Read details...
Began smelling coolant (sweet smell), although could not find leak. At 15,600 miles (may 2020), vehicle was brought to Jeep dlr for service. Found small cracks in the plastic portion of the radiator. Now, at 18,600, the sweet smell is back. Will need to take it back in to Jeep dlr again. Read details...