Parts for your 2020 Nissan Pathfinder-Starter motor

2020 Nissan Pathfinder starter motor — what it does and how to look after it

Yes, the 2020 Nissan Pathfinder does use a conventional 12‑volt starter motor. This is documented in Nissan’s R52 Series Service Manual (STR – Starting System, applicable to 2017–2020 models) and the Nissan Electronic Parts Catalogue for the R52 with the VQ35DD engine, both of which list the starter motor as a core component of the starting system alongside the battery, IPDM E/R and starter relay.

The starter motor’s job is simple but crucial: it spins the VQ35DD V6 fast enough for the engine to fire. When the driver presses the Start/Stop button with the brake applied, the control system energises the starter relay, the solenoid pushes the pinion into the flywheel ring gear, and the motor cranks the engine. Once the engine catches, the pinion retracts and the motor is out of the picture until the next start.

On the 2020 Pathfinder, the starter is mounted at the bellhousing where the engine and transmission meet. It lives in a hot, tight spot, so good battery health and clean connections make a big difference to how quickly it cranks, especially on frosty mornings or after a hot soak.

For servicing, there’s no scheduled replacement interval for the starter motor, but a few easy checks during routine maintenance help it live a long life:

• Battery and charging checks: keep the battery in good nick, during cranking, voltage ideally shouldn’t drop below about 9.6 V. A weak battery or tired alternator makes the starter work harder.
• Clean terminals and grounds: corrosion at the battery posts or engine grounds causes voltage drop and slow cranking.
• Listen for symptoms: one loud click and no crank, slow or laboured cranking, or a grinding noise on start can all point to starter or solenoid issues.

When replacement is needed, many owners choose a genuine or quality remanufactured unit. Typical labour is around 1–2 hours depending on workshop setup. Always disconnect the negative battery terminal first, and be mindful of the smart key system and radio settings. If a no‑start shows up, it’s smart to test the battery and starter current draw before committing to parts — high draw with low cranking speed often indicates a worn starter, while low draw may point to a control or relay issue.

Good news for Aussie and Kiwi drivers: the 2020 Pathfinder doesn’t use stop‑start, so the starter isn’t exposed to the extreme start counts that some city cars see. Treat the electrical system well, and the starter will usually go the distance.

• Where is the starter motor on a 2020 Nissan Pathfinder?
  It’s mounted at the junction of the engine and transmission (the bellhousing area). Access is from the engine bay and underneath, some intake ducting or shields may need to come off to reach the mounting bolts and wiring.
• What are the common signs of a failing starter on this model?
  A single loud click with no crank, slow cranking even with a healthy battery, intermittent no‑start that improves with a light tap on the housing, or a grinding noise as the pinion engages. Always rule out a weak battery and corroded terminals first.
• Does the 2020 Pathfinder have stop‑start that could wear the starter faster?
  No. The R52 Pathfinder sold in 2020 uses a conventional starting system without idle stop‑start, so the starter isn’t subjected to constant restarts in traffic.