Ford Expedition overheating issue when towing 5th wheel trailer with exhaust manifolds glowing red on Ford Expedition

Some Ford Expedition owners report experiencing overheating issues while towing a 5th wheel trailer, particularly when noticing red glowing exhaust manifolds. This problem may stem from a thermostat sticking closed, leading to engine overheating. Additionally, owners should check the functionality of cooling system components, such as the radiator and fan clutch, as issues may persist even after replacements. Towing heavy loads uphill or in high temperatures can exacerbate overheating, especially on long, steep grades. High elevations can also contribute to this problem. Some owners have reported receiving an Engine Coolant Over Temperature warning, indicating critical overheating that triggers power reduction to protect the engine. Symptoms of overheating to watch for include smoke from under the hood and a pegged temperature gauge. To mitigate these issues, it is advised to stop driving immediately upon noticing overheating symptoms, seek professional inspection for diagnosis and repairs, and maintain regular checks on the cooling system to prevent future occurrences.