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 Specifications
WARNING: This page is about a different car, the 2004 Toyota 4Runner and 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | ||||
|---|---|---|---|---|---|
| Engine Under Cover Bolts | 21 (29) | ||||
| Intake Manifold Assembly | |||||
| Bolts | 13 (18) | ||||
| Nuts | 13 (18) | ||||
| Manifold Stay Bolts | 30 (40) | ||||
| Starter Mounting Bolts | |||||
| V6 | 27 (37) | ||||
| V8 | 29(39) | ||||
| Water Bypass | |||||
| Joint Nuts | 13 (18) | ||||
| Pipe Bolt | 13 (18) | ||||
| Yoke Bolts | 27 (36) | ||||
| INCH Lbs. (N.m)Β | |||||
| End Cover Bolts | |||||
| 1.4 Kw | 13 (1.5) | ||||
| 1.6 Kw | 53 (6) | ||||
| 2.0 Kw | 34 (3.8) | ||||
| Starter Through Bolts | |||||
| 1.4 Kw | 52 (5.9) | ||||
| 1.6 Kw | 53 (6) | ||||
| 2 Kw | 82 (9.3) | ||||
| Magnetic Switch | |||||
| Terminal No. 30 Nut | 87 (9.8) | ||||
| Terminal "C" Nut | |||||
| 1.4 Kw | 52 (5.9) | ||||
| 1.6 Kw | 88 (10) | ||||
| 2 Kw | 52 (5.9) | ||||
| Screws | |||||
| 1.4 Kw | 52 (5.9) | ||||
| 1.6 Kw | 66 (7.5) | ||||
| 2 Kw | 82 (9.3) | ||||
| Wire Harness Nut | 115 (13) | ||||
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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:
- 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.
