Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
Bench Testing: Rotor
- Inspect slip ring brush contact surface. If surface is worn or rough, smooth surface with fine emory paper. Measure slip ring diameter. See SLIP RING DIAMETER table. If diameter is not as specified or brush contact surface is excessively worn or damaged, replace slip rings and/or rotor.
- Resistance across rotor slip rings should be about 3 ohms. See Fig 1 . If resistance is not as specified, replace rotor. Check continuity between each slip ring and rotor core/shaft, individually. See Fig 2 . Continuity should not exist. If continuity exists, rotor coil and/or slip ring is grounded. Replace rotor.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.