Ford announced that it has determined the problem and has worked up a fix for the engine fires that have resulted in recalls for 2013 Ford Escape and Fusion models equipped with the 1.6-liter EcoBoost engine. Ford says the fires are being caused by an issue with the cooling system software that fails to properly manage engine temperatures during “unique overheating conditions,” which are allowing the engines to get hot enough to start a fire while running. This is the third link to engine fires with faulty fuel lines being the culprit back in July and leaking coolant in September.

To prevent the overheating, Ford will be updating the software for the cooling system, but until then, the automaker says that owners of affected vehicles should not drive their vehicles and contact the dealer to arrange alternative transportation. According to Automotive News, this means that 73,320 owners are still in rental cars costing Ford up to $55 per day. None of the other engines used in these vehicles are involved in the recall.