Two problems related to coolant leaking have been reported for the 2018 Ford Explorer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Ford Explorer based on all problems reported for the 2018 Explorer.
My vehhicle has been tested by Ford service center and found to be affected by the factory defect that allows coolant to leak causing a catastrophic engine failure where the only remedy is a new engine block. My vehicle has 69919 miles. The problem was recognized when the vehicle bagan to misfire causing the check engine light to come on resulting in expensive diagnostics. Ford has put my safety as well as the safety of my passengers in jeopardy by knowing but not disclosing this factory defect that can become catastrophic at any given time. Service advisories were sent out to employees but no notification to customers.
I purchased a 2018 Ford Explorer with the 2. 3l 4 cylinder enginge in 2023. Withihn a year of my engine started to have issues hesitating when accelerating. Then it overheated and I realized my coolant was disappearing but wasnt pooling anywhere. . It was evaporating because it was leaking into my spark plugs. When I changed plugs I noticed oil or coolant on two of them I called Ford about it because my engine has a pending lawsuit for this problem it kept getting worse . I dont have the money for the repairs and I asked them if they could do a good faith repair and I was denied. As of 4/16/2026 my engine failed and my coolant is filled with oil because of the defective engine that they knew about since 2010.