Parts for your 2009 Subaru Tribeca-Crank angle sensor

2009 Subaru Tribeca crank angle sensor (crankshaft position sensor)

Based on technical references including the Subaru Factory Service Manual for the 2009 Tribeca (EZ36D Engine Control System), Subaru TechInfo wiring diagrams, and OEM parts catalogues for the 2009 model year, this vehicle is equipped with a crankshaft position sensor—commonly called a crank angle sensor. It’s also reflected in the Tribeca’s OBD-II coverage with faults like P0335 (Crankshaft Position Sensor “A” Circuit), confirming the sensor is fitted and critical to engine management.

On a 2009 Subaru Tribeca, the crank angle sensor keeps the ECU in the loop about exactly where the crankshaft is and how fast it’s spinning. That timing data drives the whole show—accurate fuel injection, spark timing, and synchronisation with the cam sensors for smooth starts, clean idle, proper power, and misfire detection. If the sensor signal drops out, the ECU can’t reliably time spark and fuel, which is why a dodgy sensor often shows up as a hard start, an intermittent stall when hot, or a no-start with a check engine light.

There’s no scheduled replacement interval for the Tribeca’s crank angle sensor, it’s a “replace on condition” part. As part of regular servicing, a good workshop will visually check the wiring loom and connector for heat damage, oil contamination, or chafing, especially around the front of the engine where it lives. Keeping leaks under control (oil or coolant) and ensuring the connector stays clean and clipped in firmly will go a long way to preventing ghost faults. If the ECU logs P0335/P0336 or related crank signal errors and basic checks don’t fix it, replacement is straightforward: disconnect the battery, unplug the sensor, remove the retaining bolt, swap the sensor and O-ring, then refit and tighten to the workshop manual’s torque spec. The air gap on Subaru’s EZ engines is set by design, so there’s no adjustment—just make sure the sensor seats fully and the mounting face is clean.

After fitting, clear any stored codes and take it for a decent drive to confirm stable RPM signal and no further faults. Use a genuine Subaru sensor or a reputable aftermarket equivalent to avoid signal quality issues that can cause random stalls or poor idle behaviour, especially when the engine is hot.

• Common symptoms: hard starting, intermittent stalling when hot, rough idle, poor fuel economy, tachometer drop-outs, and check engine light (P0335/P0336).
• Best practice: inspect wiring and connectors each service, replace the sensor if fault codes persist after loom and connector checks.

Popular questions

Where is the crank angle sensor on a 2009 Subaru Tribeca?
It’s mounted at the front of the EZ36D engine, reading a reluctor on the crankshaft. Access is from the engine bay, look for a small, single-bolt sensor with a two-wire connector near the crankshaft pulley area. Exact positioning is shown in the Subaru workshop manual’s Engine Control System section.

What fault codes point to a bad crank angle sensor?
P0335 (Crankshaft Position Sensor “A” Circuit) and P0336 (Range/Performance) are the big ones. Drivers may notice long crank times, a sudden stall when hot, or no start. Always check wiring and connectors before condemning the sensor.

Does the Tribeca need a relearn after replacing the sensor?
No special crankshaft relearn is typically required on the EZ36D. Clear the DTCs with a scan tool, start the engine, and complete a normal road test so the ECU can validate the signal. If codes return, re-check mounting, connector fit, and harness condition.