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.
1997 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) |
|---|---|
| Air Intake Plenum Bolts | 13 (18) |
| Converter-To-Pipe Bolts | 32 (43) |
| Coolant By-Pass Pipe Bolt | 13 (18) |
| EGR Pipe Bolt | 17 (23) |
| EGR Pipe Nut | 13 (18) |
| Exhaust Manifold-To-Converter Bolts | 46 (62) |
| Fuel Pipe Banjo Bolt | 29 (39) |
| Intake Manifold Bolt/Nut | 13 (18) |
| Rear Coolant By-Pass Manifold | 13 (18) |
| Starter Bolt | 29 (39) |
| Throttle Body Bolt/Nut | 13 (18) |
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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