Two problems related to crankcase (pcv) have been reported for the 2018 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Ford F-150 based on all problems reported for the 2018 F-150.
With 83,000 miles, we checked the oil to discover it was empty. Upon taking it to the dealer, they determined that there was severe scoring due to the known pcv value issue under TSB 19-2365 for excessive oil consumption. Prior to this time, there had been no oil issues with the vehicle. Dealer recommended replacement of the engine. The engine was replaced in August 2024 with a remanufactured engine. The oil was changed on December 5, 2024. From that point to February 25, 2025, the oil was checked periodically with 3 quarts of oil being added over that period of time. We took the truck back to the dealer to check to see why there is excessive oil consumption again. The dealer instructed us that they would need to follow the recommended action in TSB 19-2365 to reprogram the powertrain control module, install a new engine oil level indicator, and change the engine oil. We would then need to bring the truck in weekly for the dealer to check the oil to assess whether there was excessive consumption of oil. We asked why the engine would have been replaced in August 2024 with another engine that had the same problem as the engine replaced. Weren't the corrections done to the engine per the TSB 19-2365? we were told they did not know.
The contact owns a 2018 Ford F-150. The contact stated that while driving at an undisclosed speed, the oil pressure warning light illuminated. The vehicle then made an abnormal sound. The vehicle was towed to an independent mechanic, who diagnosed that the oil plug had detached, causing all of the engine oil to leak. The mechanic added oil to the engine; however, the check engine warning light illuminated while driving. The vehicle was taken back to the independent mechanic, but the check engine warning light was no longer illuminated. The independent mechanic determined that the crankcase ventilation system had disconnected; however, no repair was performed. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 64,000.