Parts for your 2009 Ford Territory-Crank angle sensor

2009 Ford Territory crank-angle sensor — what it does and when to replace it

Yes, the 2009 Ford Territory uses a crank-angle sensor (more commonly called a crankshaft position sensor, or CKP). Technical sources including the Ford Territory SY/SY MkII Workshop Manual (engine management, Section 303), Gregory’s Service and Repair Manual for Territory 2004–2011, and Bosch engine management literature all describe the CKP on the 4.0‑litre Barra petrol engine. The CKP reads a toothed reluctor on the crank to provide precise engine speed and crank angle to the PCM.

The crank-angle sensor is the timekeeper for the Territory’s 4.0. It tells the engine computer exactly where the crank is, so it can fire the plugs and inject fuel at the right moment. Lose that signal and it’ll crank but not start, stumble, or cut out when hot. On the Barra-powered Territory, the sensor lives at the front of the engine by the crank pulley/harmonic balancer, reading a missing-tooth wheel for accurate timing even at low cranking speeds.

There’s no set service interval for the CKP, but it’s smart to check it during routine servicing, especially as kilometres rack up or if there’s oil seepage near the front main seal. Keep an eye on the wiring and connector for heat-hardening or rubbed insulation, and make sure the sensor face is clean and seated squarely. Typical fault signs include long crank/no-start, intermittent stalling, rough running at low rpm, a jumpy tacho, and fault codes such as P0335–P0339.

• Replacement tips: disconnect the battery, access the sensor from under the front (remove the splash shield if fitted), unplug the connector, and remove the small retaining bolt. Gently twist the sensor out, lube the new O‑ring lightly, seat the new unit, and tighten to the workshop manual spec.
• After fitting: clear codes, then let it idle to operating temp. Do a basic idle relearn by letting it sit with A/C off for a few minutes, then on for a few minutes. No coding is normally required.
• Quality matters: go for genuine or a reputable brand that matches the OE spec. If failures repeat, inspect the harmonic balancer, engine earths, and harness routing away from exhaust heat.

For most owners, a CKP lasts many years and well over 150,000 km. If it does play up, it’s a straightforward fix that restores clean starts and smooth running with minimal fuss.

Popular questions

Where is the crank-angle sensor on a 2009 Ford Territory?
It’s mounted at the front of the engine near the crank pulley/harmonic balancer, reading a toothed wheel on the crank. Access is typically from underneath after removing the front splash shield. Look for a small two‑wire (or three‑wire) sensor held in with a single bolt and a sealed connector.

Does a new crank-angle sensor need programming?
No special programming is usually needed on the 2009 Territory. After installation, clear any fault codes and perform a simple idle relearn. The PCM adapts to the new signal automatically. If codes persist, check connector fitment, air gap/seating, and wiring integrity.

What fault codes point to a bad crank-angle sensor?
Common codes include P0335, P0336 and related range/performance or circuit faults. You might also see random misfire codes when the signal drops out. If the sensor signal is lost completely, the engine may crank but not start, so it’s best not to keep driving if symptoms appear.