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.
1998 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
General Specifications & VIN Identification
1988 ENGINE/VIN IDENTIFICATION
| Model | Engine | Engine Code (1) | Engine ID | Fuel System | Ignition System | ||
|---|---|---|---|---|---|---|---|
| ES300 | 3.0L V6 DOHC | 1MZ-FE | F | SFI | DIS | ||
| GS300 | 3.0L 6-Cyl. DOHC | 2JZ-GE | D | SFI | DIS | ||
| GS400 | 4.0L V8 DOHC | 1UZ-FE | H | SFI | DIS | ||
| LS400 | 4.0L V8 DOHC | 1UZ-FE | H | SFI | DIS | ||
| LX470 | 4.7L V8 DOHC | 2UZ-FE | T | SFI | DIS | ||
| SC300 | 3.0L 6-Cyl. DOHC | 2JZ-GE | D | SFI | DIS | ||
| SC400 | 4.0L V8 DOHC | 1UZ-FE | H | SFI | DIS | ||
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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.
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