On a 2013 Ford Fusion, the cylinder head temperature sensor is located in the cylinder head near the thermostat housing on the engine’s passenger side. It’s a small two-pin sensor that feeds data to the engine computer.
Overview of sensor location and engine variants
Ford offered several engines in that model year—most notably the 2.5L inline-4, the 2.0L EcoBoost, and an available V6 option. In all variants, the cylinder head temperature (CHT) sensor is mounted in or on the cylinder head itself, but the exact mounting point can vary with engine layout and accessory routing.
Where to look on the engine
Before you inspect, understand that the CHT sensor sits in or on the cylinder head and is typically accessed from the top or side of the engine compartment. You’ll be searching for a small sensor with a two-pin connector threaded into the head.
- On most 2013 Fusion engines, the sensor is on the passenger side of the engine, in or near the cylinder head, close to the thermostat housing or coolant lines entering the head. The spot may be partially hidden by hoses or the intake manifold depending on the exact engine variant.
- It is a compact metal-bodied device with a two-pin electrical connector that plugs into the wiring harness. The connector is usually gray or black and has a locking tab to secure it.
- Different from the coolant temperature sensor (ECT), which is often mounted on the thermostat housing or nearby coolant passages, the CHT sensor threads directly into the cylinder head.
If you have trouble locating it, you may need to remove some components (such as the engine cover or portions of the intake plumbing) to gain access. Always refer to the specific service manual for your engine code and VIN for the exact location and removal procedure.
Engine variant notes
For the 2.5L Duratec (the more common setup on base trims), the CHT sensor typically sits toward the front portion of the passenger-side cylinder head, near where the intake manifold or associated coolant lines connect. In EcoBoost (2.0L) or V6 configurations, the sensor can be located at a slightly different spot on the head, but it remains mounted into the head with a two-wire connector.
When in doubt, consult Ford’s factory service manual or a trusted repair guide for your exact engine code and build date to confirm the precise position and the correct torque specifications for removal and replacement.
Summary
The cylinder head temperature sensor on a 2013 Ford Fusion is located in the cylinder head near the thermostat housing on the engine’s passenger side. It is a small two-pin sensor mounted into the head, distinct from the coolant temperature sensor that is usually on the thermostat housing. Exact placement can vary by engine variant, so verify with your VIN-specific service manual.