2003 Lexus ES 300FACTORY OEM SERVICE PROCEDURE

Service Data

SERVICE DATA

Starter assy    
Specified current   90 A or less at 11.5 V
Circle runout Standard 0.02 mm (0.0008 in.)
  Maximum 0.05 mm (0.0020 in.)
Commutator length Standard 3.3 mm (0.130 in.)
  Maximum 4.0 mm (0.158 in.)
Brush holder length Standard 9.0 mm (0.354 in.)
  Maximum 4.0 mm (0.158 in.)
Snap ring length   5.0 mm (0.197 in.)
Battery    
Voltage Standard 12.5 - 12.9 V at 20°C (68°F)
Generator assy    
Rotor coil resistance at 20°C (68°F) 2.7-3.1 Ω
Slip ring diameter Standard 14.2 - 14.4 mm (0.559 - 0.567 in.)
  Minimum 12.8 mm (0.504 in.)
Brush exposed length Standard 9.5 - 11.5 mm (0.374 - 0.453 in.)
  Minimum 1.5 mm (0.059 in.)
Factory Service Tools

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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.

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