Severity: Fix right away. Driving risks expensive damage or a breakdown.
On Ford vehicles, the sensor that measures cylinder head temperature is reporting an extremely hot reading, which can mean the engine is actually overheating or the sensor circuit is faulty.
Check the coolant level first. If the engine is not actually hot, test the sensor and its wiring.
Check the coolant level and temperature gauge right away. If the engine is truly hot, stop driving.
Avoid driving until it is checked — towing is the safer choice. Check the coolant level and temperature gauge right away. If the engine is truly hot, stop driving.
The most common causes are: Engine overheating; Failed cylinder head temperature sensor; Damaged wiring; Low coolant level. A scan tool and a visual check of the parts above is where a technician starts.
Check the coolant level first. If the engine is not actually hot, test the sensor and its wiring.
