Parts for your 2011 Subaru Tribeca-Camshaft sensor

2011 Subaru Tribeca camshaft sensor: what it does, where it lives, and when to replace it

Yes, the 2011 Subaru Tribeca absolutely uses camshaft position sensors. Technical references such as the Subaru Factory Service Manual for the EZ36 engine, Subaru’s Global Service Information (TechInfo), and OEM parts catalogues list two camshaft position sensors on this model (one for each cylinder bank). Common OBD-II diagnostics for this vehicle also include cam sensor-related codes like P0340/P0341 (Bank 1) and P0345/P0346 (Bank 2), confirming the system is fitted and monitored.

On the Tribeca’s 3.6-litre EZ36 H6, the camshaft sensor tracks the precise position and speed of the camshaft so the engine control unit can sync fuel injection and spark with the crankshaft signal. It also helps the AVCS variable valve timing system do its thing, which means better torque, smoother idle, cleaner emissions and decent fuel economy. If a sensor starts to fail, owners may notice longer cranking, a rough idle, flat spots under load, or the check engine light. The vehicle might default to a safe strategy that dulls performance to protect the engine.

As part of regular servicing, the camshaft sensor isn’t a scheduled replacement item, but it pays to keep an eye on the wiring and connectors under the bonnet. Heat, oil weeps, and vibration can cause intermittent signals. Sticking to timely oil changes with the correct grade helps AVCS respond crisply, which keeps the whole timing strategy happy.

Replacement is straightforward for most workshops. There are two sensors, typically mounted near the front/outer side of each cylinder head. After removing the engine cover, unplug the connector, back out the small retaining bolt, and withdraw the sensor. A light smear of fresh oil on the new O-ring helps it seat cleanly. Refit, tighten the retaining bolt to the manufacturer’s spec (don’t overtighten), reconnect, clear any codes and carry out a short road test. Quality OEM or reputable aftermarket sensors are recommended for reliable signal quality.

• If both banks show cam sensor faults, check shared power/ground circuits and harness routing before blaming both sensors.
• If only one bank faults repeatedly, inspect that sensor’s connector for oil contamination or broken locking tabs.
• If the engine cranks forever or stalls at low speed, capture live data for cam/crank sync to guide diagnosis.

Popular questions

How many camshaft sensors does a 2011 Subaru Tribeca have?

This model uses two camshaft position sensors, one for each cylinder bank. They’re often identified as Bank 1 Sensor A and Bank 2 Sensor A and sit near the front/outer side of each cylinder head.

Is it safe to drive with a faulty camshaft sensor?

It may run, but it’s not ideal. Expect hard starts, flat spots and the odd stall. Prolonged misfires can stress the catalytic converters, so it’s best to sort the fault sooner rather than later.

Do camshaft sensors need programming after replacement?

No coding is normally required. Fit the new sensor, clear fault codes and perform a short drive cycle so the ECU can confirm clean cam/crank synchronisation. If a code returns, recheck wiring, connectors and power/ground.