Ford Fiesta overheating issue when idling in high temperatures causing stalling on Ford Fiesta

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Ford Fiesta owners report experiencing overheating and stalling when idling in high temperatures due to several factors. These issues can arise from insufficient coolant levels or coolant leaks from components such as hoses or the radiator, as well as a malfunctioning thermostat, clogged radiator, or faulty cooling fans. Common indicators of overheating include a spiking temperature gauge, smoke from the hood, and a burning rubber smell. Owners note that low coolant levels can exacerbate overheating, particularly when idling, so it is crucial to fill the radiator and coolant reservoir carefully, avoiding this when the engine is warm. Additionally, some owners find that replacing cooling system components like the thermostat, cooling fan, water pump, and radiator can help mitigate these overheating issues. Checking the operation of the cooling fan during high temperatures is also recommended. Moreover, cleaning the Mass Air Flow (MAF) sensor may prevent stalling, especially with the air conditioning on. Regular maintenance and prompt repairs are essential for preventing these overheating and stalling problems in the Ford Fiesta.

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