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.
2005 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA
| POWER STEERING SYSTEM | |
|---|---|
| Fluid level rise Maximum | 5 mm (0.20 in.) |
| Fluid pressure at idle speed with valve closed | 8,336 to 8,826 kPa (85 to 90 kgf/cm2 , 1,209 to 1,280 psi) |
| STEERING WHEEL | |
| Steering wheel freeplay (Reference) | 30 mm (1.18 in.) |
| Steering effort at idle speed Maximum | 6.9 N.m (70 kgf.cm, 61 in..lbf) |
| VANE PUMP ASSY | |
| Vane pump rotating torque | 0.27 N.m (2.8 kgf.cm, 2.4 in..lbf) or less |
| Oil clearance between vane pump shaft and bushing Standard | 0.016 to 0.040 mm (0.0006 to 0.0016 in.) |
| Oil clearance between vane pump shaft and bushing Maximum | 0.07 mm (0.0028 in.) |
| Vane plate thickness Minimum | 1.405 mm (0.0553 in.) |
| Clearance between the rotor groove and plate Maximum | 0.03 mm (0.0012 in.) |
| Spring free length Minimum | 30.3 mm (1.193 in.) |
| POWER STEERING GEAR ASSY | |
| Steering rack runout Maximum | 0.3 mm (0.0118 in.) |
| Tie rod assy standard bolt torque (Turning) | 0.49 to 3.43 N.m (5.0 to 35.0 kgf.cm, 4.3 to 30.4 in..lbf) |
| Total preload (Control valve rotating torque) (Turning) | 0.8 to 1.6 N.m (8 to 16 kgf.cm, 7 to 14 in..lbf) |
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.