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.
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HOMESERVICE MANUALSSUBARU2000FORESTER L, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALSTARTERSBENCH TESTINGARMATURE TEST
2000 Subaru Forester L, Automatic
Armature Test
2000 Subaru Forester L, AutomaticSECTION Armature Test
- Check armature for short using a growler and hacksaw blade. Hold hacksaw blade against armature while slowly rotating armature in growler. A shorted armature will cause hacksaw blade to vibrate and be attracted to armature core when passed over shorted area. Replace armature as necessary.
- Use an ohmmeter to check for grounded armature. Touch one probe to each segment of commutator and hold other probe to armature core. If continuity exists, replace armature.
- Use ohmmeter to check commutator for open circuit. If continuity does not exist between any 2 commutator segments, replace armature. Check commutator for outside diameter wear, runout and mica insulation depth. See STARTER SPECIFICATIONSΒ .
- If correcting runout condition, DO NOT reduce commutator diameter below specification. Undercut mica insulation if it is even with or higher than commutator surface. See Fig 1. See STARTER SPECIFICATIONSΒ .
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.