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.
2003 Lexus IS 300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Torque Specification
TIGHTENING TORQUE SPECIFICATION
| Part tightened | N.m | kgf.cm | ft.lbf |
|---|---|---|---|
| Starter x Transmission | 37 | 380 | 27 |
| Lead wire x Terminal C of starter | 5.9 | 60 | 52 in.lbf |
| Field frame x Armature assembly | 5.9 | 60 | 52 in.lbf |
| Starter housing x Magnetic switch | 5.9 | 60 | 52 in.lbf |
| End cover x Field frame | 1.5 | 15 | 13 in.lbf |
| Terminal nut x Terminal 30 of starter | 17 | 173 | 13 |
| Terminal nut x Terminal C of starter | 17 | 173 | 13 |
| Magnetic switch end cover x Magnetic switch | 2.5 | 26 | 22 in.lbf |
Factory Service Tools
Use the Manual With the Right Hardware
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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.