Parts for your 2012 Ford Territory-Crank angle sensor

2012 Ford Territory crank-angle sensor: what it does and when to replace it

For the 2012 Ford Territory (SZ series), a crank-angle sensor is absolutely fitted and relevant. Ford’s own workshop documentation for SZ Territory engines (4.0-litre petrol Barra I6 and 2.7-litre TDCi V6) identifies a Crankshaft Position (CKP) sensor—what many call a crank-angle sensor—as a primary engine control input, and Ford parts catalogues list a dedicated CKP for these models. Standard Ford diagnostic procedures also reference CKP-related DTCs (like P0335–P0339) for this vehicle. So yes, the Territory uses one, and the engine won’t run properly without it.

The CKP/crank-angle sensor reads a toothed reluctor on the crankshaft or flexplate and sends a precise rotor position and engine speed signal to the PCM. That signal is the timing backbone for fuel injection, spark (on petrol), and sync for the cam sensors. It’s how the Territory’s PCM knows exactly when to fire each injector and coil, manage idle stability, and keep emissions and economy on point. Lose that signal and you’ll cop hard starts or a no-start, random cut-outs, or rough running.

It’s not a scheduled replacement item, but heat, vibration, oil contamination, or wiring fatigue can age them out—often somewhere past the 150–250,000 km mark. Common tell-tales include intermittent stalling, long crank when hot, tach drop-outs, uneven idle, misfires at cruise, and stored codes like P0335. Before throwing parts, scan live data for RPM during cranking, inspect the harness and connector for chafing or oil wicking, and check the crank reluctor if the sump or transmission has been off recently.

Replacement is straightforward for a competent home mechanic:

• Disconnect the battery negative and safely raise the vehicle.
• Locate the sensor on the engine block (petrol: typically near the rear by the bellhousing, diesel: mounted to the block facing the reluctor). Remove the single retaining bolt and unplug the connector.
• Lightly oil the new O-ring, seat the sensor flush, and tighten the bolt to the factory spec. Route the loom away from heat and moving parts.
• Clear codes, then perform an idle relearn. Most petrol models are plug-and-play, some diesels may benefit from a CKP learn with a capable scan tool.

During regular servicing, it’s smart to eyeball the sensor area for oil leaks, keep the connector clean, and ensure the loom isn’t rubbing on the body or exhaust. When replacing, stick with quality OE-equivalent sensors to avoid low signal strength and phantom faults. Done right, the Territory will crank, fire, and run sweet as for years.

FAQs

Where is the crank-angle (CKP) sensor on a 2012 Ford Territory?
The CKP is mounted to the engine block facing a toothed wheel on the crank or flexplate. On the 4.0-litre petrol, it’s typically accessed from underneath near the bellhousing. On the 2.7 TDCi, it’s also block-mounted and accessed from below. A torch and a small socket help.

What are the signs the CKP sensor is failing on a 2012 Territory?
Long cranking (especially hot), intermittent stalling, rough idle, sudden tach drops, misfires, and DTCs like P0335–P0339. If the PCM can’t see engine speed while cranking, it won’t fire injectors or coils.

Is a CKP replacement a maintenance item or only when faulty?
It’s not routine maintenance, replace when faulted or damaged. During services, check for oil leaks onto the sensor, brittle wiring, or loose connectors to prevent future headaches.