Parts for your 2008 Subaru Forester-Starter motor

2008 Subaru Forester Starter Motor — What It Does and How to Look After It

Based on technical documentation such as the Subaru Factory Service Manual for the 2008 Forester (SG/early SH, Starting/Charging section), Subaru’s Technical Information System workshop procedures, and OEM parts catalogues for the EJ-series petrol and EE20 diesel engines, the 2008 Subaru Forester is equipped with a conventional 12‑volt starter motor. There’s no integrated starter‑generator or stop/start system on this year, so a dedicated starter motor is absolutely relevant and used on all 2008 Forester variants.

The starter motor’s job is simple but vital: it spins the engine fast enough for fuel and spark (or compression on the diesel) to take over. On the 2008‑Subaru‑Forester starter‑motor setup, the solenoid pushes a small pinion gear into the flywheel ring gear, cranks the engine, then retracts once it fires. It’s mounted at the bellhousing where the engine meets the transmission, and can usually be reached from above and below with basic workshop tools.

As part of servicing, it’s smart to give the starter system a once‑over. Check the battery health (low voltage is a starter killer), clean the terminals, and make sure the main earths and starter cable are tight and free of corrosion. If cranking sounds lazy, test voltage drop on the positive cable to the starter and the engine earth strap—poor connections can mimic a bad starter. For petrol EJ20/EJ25 and the EE20 diesel alike, the principles are the same.

When replacement is needed, it’s a straightforward job for a competent home mechanic, but safety first. Disconnect the negative battery terminal, support the vehicle securely, and note the wiring orientation on the solenoid. Remove the heat shield (if fitted), undo the mounting bolts, and lift the unit out. Installation is the reverse—seat the starter squarely, torque the bolts to the factory spec in the Subaru service manual, reconnect wiring snugly, and refit the shield. There’s no electronic relearn required—once it’s bolted up and the battery’s reconnected, it should crank right away.

To get the most life from a new or existing 2008‑Subaru‑Forester starter‑motor, keep the battery in top nick, fix oil leaks that can contaminate the starter, and address any slow‑crank symptoms early. A healthy charging system and clean electrical connections will save heaps of grief and keep cold‑morning starts drama‑free.

• Common warning signs: single click and no crank, intermittent cranking, slow crank with good battery, visible arcing at terminals, or a grinding sound engaging the flywheel.
• Quick checks: battery test, terminal clean, voltage‑drop test on positive and earth, and confirm the neutral/park or clutch‑switch is working.

Popular questions about the 2008 Subaru Forester starter motor

Where is the starter motor on a 2008 Forester?
The starter sits at the bellhousing where the engine meets the gearbox. It’s tucked near the rear of the engine bay and can be accessed from above and below. Look for the cylindrical motor with a small solenoid housing and thick battery cable attached.

On both petrol and diesel models, the location is similar. A torch and a small mirror make spotting the mounting bolts and wiring much easier.

How can I tell if it’s the starter or the battery?
If you get a rapid clicking and dimming lights, the battery or connections are likely. A single loud click with no crank often points to the starter solenoid or worn brushes. Jump‑starting with a known‑good battery can help isolate it—if it still won’t crank strongly, the starter or its wiring may be at fault.

Do a quick voltage‑drop test on the positive cable to the starter and across the engine earth, high drop means the wiring or connections need attention before blaming the starter.

Can the 2008 Forester starter be rebuilt, or should it be replaced?
Both options exist. Many auto‑electricians in Australia and New Zealand can rebuild OEM units with new brushes, bushings, and solenoids. If the housing or armature is badly worn, a quality remanufactured or new OEM‑spec unit is often the best bet.

When choosing, weigh cost, warranty, and downtime. A good rebuild can be excellent value, but a new unit offers plug‑and‑play convenience and a longer warranty in most cases.