Parts for your 2008 Subaru Tribeca-Crank angle sensor

2008 Subaru Tribeca crank angle sensor — what it does and when to replace it

Yes, the 2008 Subaru Tribeca is fitted with a crank angle sensor (commonly called a crankshaft position sensor). Technical references that confirm its use include the Subaru Factory Service Manual for the 2008 Tribeca (Engine Diagnostics, DTC P0335/P0336 sections), which details the sensor’s signal to the ECM for ignition and fuel timing, and the Subaru genuine parts catalogue (FAST), which lists a crankshaft position sensor for the 3.6‑litre EZ36 engine used in this model year. Standard OBD‑II definitions (SAE J1979) also reference P0335/P0336 faults as crankshaft position sensor issues, which the Tribeca’s ECM can set.

On the 2008 Tribeca, the crank angle sensor monitors the crankshaft’s speed and position with high precision. The ECM uses this signal to decide exactly when to spark and when to inject fuel, and to sync with the camshaft sensors for variable valve timing control. Without a clean crank signal, the Tribeca can struggle to start, run roughly, or stall. It’s a small, solid-state sensor that reads a toothed reluctor on the crankshaft, the output is a waveform the ECM interprets as engine speed (RPM) and crank angle. That means it’s central to cold starts, smooth idle, good fuel economy, and emissions compliance.

This sensor isn’t a scheduled service item, so there’s no routine replacement interval. Still, it’s smart during servicing to check the wiring loom and connector for chafing, oil contamination, or corrosion, and to confirm the harness is clipped away from heat. If faults crop up, common signs include:

• Hard starting or a no‑start when hot or cold
• Intermittent stalling or surging at low speeds
• Rough idle, poor economy, and a lit check‑engine lamp
• Stored codes like P0335 or P0336

Replacement is typically straightforward for a qualified tech: battery disconnected, connector off, a single retaining fastener removed, sensor swapped, and the O‑ring lightly oiled and seated if applicable. Positioning varies, but it’s mounted to the engine block facing the crank’s reluctor wheel, access is usually from the front or top depending on market layout. Using an OEM or high‑quality aftermarket sensor is wise, and a quick relearn/clear of codes finishes the job. If symptoms persist, technicians will scope the signal and check for reluctor damage or wiring faults before pointing the finger at the ECM.

Popular questions about the 2008 Subaru Tribeca crank angle sensor

What are the most common symptoms of a failing crank angle sensor on a 2008 Tribeca?
Owners often report hard starting, random stalling at intersections, a rough or hunting idle, and a check‑engine light. The ECM may store P0335 or P0336. Sometimes it’s intermittent when hot, which can make the fault feel random until it worsens.

A scan with live data helps: if RPM drops to zero while cranking or during a stall, the crank signal is suspect. A visual check of the connector and loom is also worthwhile, especially if there’s been recent work near the front of the engine.

Can the Tribeca be driven with a faulty crank angle sensor?
It’s risky. The engine may stall without warning and might not restart once it cools or heats up again. Because the ECM relies on the crank signal for spark and fuel, drivability can go from annoying to undriveable quickly.

If a warning light is on with P0335/P0336 and symptoms are present, it’s best to arrange repair promptly rather than continue driving.

How much does replacement usually cost in Australia or New Zealand?
As a ballpark, parts range roughly AUD/NZD 120–250 for quality OEM‑equivalent sensors. Labour is usually 0.5–1.0 hour depending on access, so total fitted cost often lands around AUD/NZD 220–450 at general workshops.

Pricing varies by brand choice and local labour rates. A quick quote with the VIN ensures the correct sensor and current pricing.