Parts for your 2017 Nissan Pathfinder-Crank angle sensor

2017 Nissan Pathfinder crank-angle sensor (crankshaft position sensor) — purpose, servicing and replacement

Based on technical sources including the Nissan Factory Service Manual for the 2017 Pathfinder R52 (EC – Engine Control) and Nissan’s global parts catalog listings for the VQ35 3.5‑litre V6, the vehicle is fitted with a crank-angle sensor (commonly called the crankshaft position sensor, CKP). It’s a key input for ignition and fuel timing and is absolutely relevant on this model.

On the 2017 Nissan Pathfinder, the crank-angle sensor keeps the engine management in sync. Mounted near the transmission bellhousing reading a toothed wheel on the crank, it tells the ECU exactly where the crank is and how fast it’s spinning. That signal drives spark timing, injector sequencing and stability of idle, especially on the direct-injected VQ35. If the sensor signal goes walkabout, the engine can crank without firing, stall at idle, or log faults and drop into limp mode.

There’s no scheduled replacement interval in Nissan’s service literature for this sensor, but sensible maintenance during regular servicing pays off. Under the bonnet, a quick visual of the CKP harness and connector for chafe, oil contamination or loose fitment helps head off intermittent faults. If the Pathfinder throws codes like P0335 or P0339, or shows hard starting when hot, poor fuel economy or random cut-outs, testing the CKP signal and power/earth at the connector is the next step.

When replacement is needed, the job is straightforward for a competent home mechanic or workshop:

• Disconnect the battery and raise the vehicle safely to access the lower rear of the engine.
• Unplug the sensor, remove the single retaining bolt, and twist the old sensor free.
• Lightly oil the new O‑ring, seat the sensor square to avoid nicks, and refit the bolt to factory torque (don’t over-tighten).
• Reconnect, clear fault codes and verify live data and a clean start/idle.

Using a quality OEM-spec sensor and ensuring the loom isn’t tensioned or rubbing on the case will give reliable results. There’s no special relearn on most Pathfinders, however, it’s good practice to check for ECU updates, confirm no companion cam sensor codes, and road test over varied speeds for a few kilometres. For owners towing or touring in Aussie and Kiwi conditions, keeping connectors clean and dry is a simple win for long-term reliability.

Popular question: Where is the crank-angle sensor on a 2017 Pathfinder?

It’s fitted low on the engine near the transmission bellhousing, reading the crankshaft reluctor ring. Access is usually from underneath, a torch and a 10 mm socket make life easier. Look for a small two‑wire or three‑wire sensor with a single retaining bolt.

Popular question: What are the signs the crank-angle sensor is failing?

Common clues include long cranking, random stalling at idle, misfires under load, dead tach during crank, and fault codes like P0335/P0339. Some drivers also notice the CVT feels lazy because the ECU pulls timing when it loses a clean CKP signal.

Popular question: Do I need to replace the cam sensors at the same time?

Not necessarily. If only CKP codes are present and wiring checks out, replacing just the crank sensor is fine. If there are companion camshaft position sensor codes or corrosion on multiple connectors, it’s smart to test and address them together to avoid repeat visits.