2018 Ford Explorer engine and engine cooling problems

“The contact owns a 2018 Ford Explorer. The contact stated that while driving at approximately 30 MPH, the check engine warning light illuminated. The vehicle was driven to the residence and then to an independent mechanic shop, where a full diagnostic inspection was not performed; however, the mechanic suspected that coolant bubbled internally and the contact was informed that the head gasket might need to be replaced. The mechanic was unable to disassemble the engine for further inspection. The vehicle was then taken to a dealer, who diagnosed that the water pump needed to be replaced, and the vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 112,000.”

“The contact owns a 2018 Ford Explorer. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. Prior to the failure, when the vehicle was started, there was an abnormal sound coming from the engine. After several minutes, the sound ceased. The vehicle was taken to an independent mechanic who diagnosed the vehicle with a misfire in cylinder #3. The contact was informed that the spark plug was stuck, and the independent mechanic was unable to remove the spark plug. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic. The vehicle was diagnosed with a misfire in cylinder #3, and the spark plug and ignition coil were replaced. The contact was unsure if the stuck spark plug was removed the second time the vehicle was repaired. Most recently, the contact noticed that while the vehicle was in park(P) and left running, the vehicle was idling roughly. The message "Engine Coolant Over Temperature" was intermittently displayed. The contact pulled over to the side of the road, left the vehicle running, exited the…”

“The contact owns a 2018 Ford Explorer. The contact stated while driving at an undisclosed speed, the engine overheated, with the warning light illuminated. The contact parked the vehicle and refilled the coolant reservoir. In addition, the contact stated that the coolant reservoir was repeatedly refilled weekly. The vehicle was taken to an independent mechanic where it was diagnosed with a coolant pump failure and a slow coolant leak. The contact was informed that the coolant pump needed to be replaced. The vehicle was not repaired. The vehicle was then taken to the dealer where it was diagnosed with coolant pump failure. The contact was informed that the coolant pump needed to be replaced. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.”

“The contact owns a 2018 Ford Explorer. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic who diagnosed the vehicle and retrieved DTC: P0303 (Misfire in cylinder #3). The vehicle was not repaired. The contact took the vehicle to the dealer, who confirmed the failure. The dealer replaced the spark plugs and ignition coils. The contact stated that the failure persisted. The contact stated that on a separate occasion, after the contact had the tires serviced, and the engine overheated. The vehicle was taken back to the dealer and was diagnosed with coolant intrusion into the cylinders, causing engine failure. The contact was informed that the torque converter and engine needed to be replaced; however, the vehicle was not repaired for the most recent failure due to the cost. The contact stated that the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 119,000.”

“The contact owns a 2018 Ford Explorer. The contact stated while driving approximately 35 MPH, there was black smoke coming from under the hood. The vehicle was towed to the local dealer, who diagnosed that the battery was faulty. The battery was replaced. The contact stated that while driving, there was black smoke coming from under the hood, and the vehicle was towed to the dealer and was diagnosed with transmission failure. The transmission was replaced. Later, while driving again, the black smoke was again present coming from the hood of the vehicle, and the vehicle was towed to the dealer, who diagnosed the vehicle and determined that the engine and turbo were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 40,000.”

“The contact owns a 2018 Ford Explorer. The contact stated that while driving at various speeds on several occasions, there was an abnormal odor outside of the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 131,504.”