On a 2012 Ford Expedition, the camshaft position sensors are located on the rear of each cylinder head, one for each bank, near the firewall. They’re small sensors with electrical connectors that feed into the engine management system.
Understanding the sensor layout
The Expedition’s 5.4-liter V8 typically uses two camshaft position sensors to monitor cam timing. Knowing their exact position helps with diagnostics and replacement when codes point to cam timing issues.
Where exactly they sit
Each sensor sits at the rear of a cylinder head, toward the firewall, behind the upper intake/plenum. The electrical connectors run along the back edge of the engine toward the main wiring harness. Access may require removing some components to reach the sensors.
To help you locate quickly, here’s a concise checklist.
- Driver-side cam sensor: rear of the driver-side cylinder head, near the firewall.
- Passenger-side cam sensor: rear of the passenger-side cylinder head, near the firewall.
- Indicators: small black plastic sensors with a 2- or 3-wire electrical connector.
- Access path: you may need to remove the upper intake plenum or surrounding components to gain access.
In short, both camshaft position sensors on that model are mounted at the back of each head, behind the intake, and close to the firewall. Access typically requires some clearance and may involve removing the intake or related shields.
Testing and replacement basics
Before replacing a sensor, verify with a diagnostic scanner and visually inspect the wiring. If you encounter codes such as P0340, P0341, or P0344, or experience intermittent timing-related misfires, the camshaft position sensors are a common failure point. Replacement involves disconnecting the wiring harness, removing the sensor mounting bolt(s), installing the new sensor with proper torque, reconnecting the harness, and clearing codes. Always refer to the vehicle’s service manual for exact torque specs and wiring pinouts for your engine variant.
Note: If your Expedition has a variant of the 5.4L V8 with different valve/rocker configurations, the general location remains the same—the sensors sit on the rear of each cylinder head—but consult the official manual for precise torque specs and wiring colors for your exact build.
Summary
For a 2012 Ford Expedition, there are two camshaft position sensors located on the rear of each cylinder head—one on the driver’s side and one on the passenger’s side—near the firewall and behind the intake. They are small sensors connected to the engine computer, and access may require removal of the intake plenum or related components.
Where is the camshaft position sensor located on a 2012 Ford Expedition?
All right friends to find our cam position sensors I'm going to let you know there's two of them there's going to be one over on the passenger. Side. And then there's going to be one located over on
What happens when your camshaft position sensor goes bad?
Problems Starting the Vehicle: A faulty sensor may send weak or inaccurate signals to the computer, leading to trouble starting the engine—or preventing it from starting altogether. Unpredictable Stalling: Intermittent sensor failures can cause your car to stall unexpectedly while driving or idling.
Do you need to reset computer after replacing crankshaft position sensor?
Do I need to reset the ECU after replacement? Yes, clearing the ECU helps the system relearn the new sensor. You can do this with an OBD-II scanner or by disconnecting the battery briefly.
How many camshaft position sensors does a Ford Expedition have?
four camshaft position sensors
Your 2016-2024 Expedition has four camshaft position sensors; an OBD-II scanner can help identify which one is faulty using codes like P0340, P0345, etc.