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 LS 430FACTORY OEM SERVICE PROCEDURE
Torque Specification
TIGHTENING TORQUE SPECIFICATION
| Part tightened | N.m | kgf.cm | ft.lbf |
|---|---|---|---|
| Terminal 30 nut, Terminal C nut x Terminal bolt | 17 | 173 | 13 |
| End cover x Magnetic switch housing | 3.6 | 37 | 32 in.lbf |
| End cover x Brush holder | 3.8 | 39 | 34 in.lbf |
| Starter housing x Magnetic switch | 9.3 | 95 | 82 in.lbf |
| End cover with field frame x Starter housing | 9.3 | 95 | 82 in.lbf |
| Lead wire of field coil x Terminal C | 5.9 | 60 | 52 in.lbf |
| Starter x Cylinder block | 37 | 380 | 27 |
| Starter cable x Starter | 9.8 | 100 | 87 in.lbf |
| Throttle body x Upper intake manifold, Lower intake manifold | 18 | 185 | 13 |
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.
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