NHTSA Complaint #11649012 — 2014 JEEP WRANGLER

In 2020 and 2025, Oil Coolant Housing cracked and failed. First incident happened on the way to an oil change. Certified Mechanic found oil covering entire undercarriage and engine, and notified me this was a severe fire and safety hazard. Replaced with an OEM Housing from dealership. 2025, same failure. Found by another Certified Mechanic while researching check engine light. Replaced with a metal Housing. Getting a P0303 and P0305 error code. Recorded over 300 misfires in 2 days. Replaced all spark plugs, coil packs and fuel injector in #5. No improvement in performance, continued coding. While returning to Mechanic, had a strong burning smell and smoke coming out from under the hood. Coolant was covering entire engine compartment and undercarriage. Mechanic notified me the Coolant was flowing through the engine and exiting out the #5 cylinder. Diagnosed failure of head gasket and engine. Driving vehicle causes smoke under hood, some in passenger compartment and strong burning smell. Recommended replacing engine as complete failure is imminent and is a safety and fire hazard.