In this video, you will see the complete process of locating and replacing both the Intake and Exhaust Camshaft Position (CMP) Sensors on a Ford Fusion equipped with the 2.0L EcoBoost turbo engine. If your engine is experiencing a rough idle, hesitating badly under acceleration, or throwing a check engine light for a camshaft circuit fault, this visual guide shows you exactly where to look on top of the valve cover to find both sensors and how to swap them out.
How this video helps you: The 2.0L EcoBoost engine features two distinct camshaft position sensors to track the rotation of the dual overhead camshafts. The Intake CMP sensor is located on the rear (firewall) side of the valve cover, while the Exhaust CMP sensor is positioned on the front (radiator) side of the valve cover on the driver’s side of the engine bay. Because they are tucked around the high-pressure fuel pump shield, vacuum lines, and the plastic engine beauty cover brackets, they can be tough to distinguish at first glance. This video points directly to both exact locations on the vehicle so you can see them clearly. You will see how to quickly pop off the engine cover, how to safely release the fragile plastic locking electrical tabs without snapping them, and the best angle to unbolt and pull the sensors cleanly out of the valve cover.
💡 Pro Tip: When installing the new sensors, always apply a tiny dab of clean engine oil to the new rubber O-ring seals on the sensor bodies. This keeps the seal from tearing or bunching up as you press it into the valve cover bore, preventing future engine oil leaks over the top of your engine block.
Common symptoms of a bad Camshaft Position Sensor: The CMP sensors send data regarding camshaft speeds and positions to the powertrain control module. This data determines the precise timing of fuel injection and spark plug ignition. When a sensor drops its signal or shorts out, it causes these classic issues:
- Check Engine Light & CMP Fault Codes: Issues with the sensor circuits or timing alignment will instantly trip the light, storing diagnostic trouble codes such as P0340 / P0344 (Intake sensor faults) or P0365 / P0369 (Exhaust sensor faults).
- Engine Hesitation and Misfires: Because the computer loses its precise timing guide for the fuel injectors, the engine will experience random misfires, jerky acceleration, or a noticeable bogging sensation when trying to pass or merge.
- Rough, Unstable Idle: When sitting at a red light, you will feel the engine shudder, vibrate, or drop down in RPMs, making the car feel like it wants to stall out completely.
- Hard Starting or Long Crank Times: Without a clear signal from the camshafts, the computer takes significantly longer to calculate when to fire the spark plugs, resulting in an extended “cranking” time before the engine finally catches and runs.
- Decreased Fuel Economy: A bad or weak sensor tricks the engine into running an inefficient, conservative fuel map, causing your Fusion to burn through gas much quicker than normal.
Watch the video to see the exact locations on the cylinder head assembly and tackle your camshaft sensor replacement confidently!