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
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
1GF-FE:Β
TORQUE SPECIFICATION - 1GF-FE
| Part Tightened | N.m | kgf.cm | ft.lbf |
|---|---|---|---|
| Oil pressure switch x Oil filter bracket sub-assy | 15 | 152 | 11 |
| Oil pan drain plug x Oil pan sub-assy No.2 | 40 | 408 | 30 |
| Timing chain cover sub-assy x Cylinder head and block | 23 | 235 | 17 |
| Oil filter bracket sub-assy x Timing chain cover sub-assy | 19 | 194 | 14 |
| Camshaft timing oil control valve assy x Timing chain cover sub-assy | 9.0 | 92 | 80 in.lbf |
| Ignition coil assy x Cylinder head cover sub-assy | 10 | 102 | 7 |
| V-bank cover x Intake air surge tank | 7.5 | 76 | 66 in.lbf |
| Oil pump relief valve x Oil pump cover | 49 | 500 | 36 |
| Oil pump cover x Timing chain or belt cover sub-assy | 9.0 | 92 | 80 in.lbf |
| Oil pipe x Timing chain or belt cover and oil pump cover | 9.0 | 92 | 80 in.lbf |
| Oil cooler assy x Oil filter bracket sub-assy | 68 | 693 | 50 |
2UZ-FE:Β
TORQUE SPECIFICATION - 2UZ-FE
| Part Tightened | N.m | kgf.cm | ft.lbf |
|---|---|---|---|
| No. 2 oil pan x Drain plug | 39 | 398 | 29 |
| Oil pump x Cylinder block 14 mm head | 31 | 311 | 23 |
| Others | 16 | 160 | 11 |
| Oil pump body cover x Oil pump body | 10 | 105 | 7 |
| Oil pump relief valve x Oil pump body | 49 | 500 | 36 |
| Oil cooler x Oil filter bracket | 69 | 700 | 51 |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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