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 IS 300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA - STEERING
| POWER STEERING FLUID | ||
| Fluid level rise | Maximum | 5 mm (0.20 in.) |
| Fluid pressure at idle speed with valve closed | Minimum | 6, 900 kPa (70 kgf/cm2 , 996 psi) |
| STEERING WHEEL | ||
| Steering wheel freeplay | Maximum | 30 mm (1.18 in.) |
| Steering effort at idle speed | 4.2 - 5.4 N.m (43 - 55 kgf.cm, 37 - 48 in.lbf) | |
| POWER STEERING VANE PUMP | ||
| Vane pump rotating torque | 0.25 N.m (2.5 kgf.cm, 2.2 in.lbf) or less | |
| Vane pump shaft and front housing bushing oil clearance | STD | 0.03 - 0.05 mm (0.0012 - 0.0020 in.) |
| Maximum | 0.07 mm (0.0028 in.) | |
| Vane plate height | Minimum | 8.6 mm (0.339 in.) |
| Vane plate thickness | Minimum | 1.40 mm (0.0551 in.) |
| Vane plate length | Minimum | 14.99 mm (0.5902 in.) |
| Vane plate and vane pump rotor groove clearance | Maximum | 0.033 mm (0.0013 in.) |
| Vane plate length | Pump rotor and cam ring mark | |
| None | 14.999 - 15.001 mm (0.59051 - 0.59059 in.) | |
| 1 | 14.997 - 14.999 mm (0.59043 - 0.59051 in.) | |
| 2 | 14.995 - 14.997 mm (0.59035 - 0.59043 in.) | |
| 3 | 14.993 - 14.995 mm (0.59027 - 0.59035 in.) | |
| 4 | 14.991 - 14.993 mm (0.59020 - 0.59027 in.) | |
| Spring free length | Minimum | 33.2 mm (1.307 in.) |
| POWER STEERING GEAR | ||
| Steering rack runout | Maximum | 0.15 mm (0.0059 in.) |
| Total preload | Turning | 1.2 - 1.7 N.m (12.2 - 17.3 kgf.cm, 10.6 - 15.0 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.