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.
Torque Specifications
1998 Lexus SC 300SECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |||||||
|---|---|---|---|---|---|---|---|---|
| Accelerator Cable Bracket Nuts | ||||||||
| GS400 | 13 (18) | |||||||
| Air Intake Chamber Bolts | ||||||||
| ES300 | 32 (43) | |||||||
| LS400 & SC400 | 13 (18) | |||||||
| Air Intake Chamber Stay Bolts | ||||||||
| ES300 | 21 (28) | |||||||
| GS300 | 21 (28) | |||||||
| Brake Booster Union Bolt | 22 (30) | |||||||
| EGR Temperature Sensor | 14 (19) | |||||||
| Engine Hanger Bolts | ||||||||
| ES300 | 29 (39) | |||||||
| Fuel Line-To-Intake Manifold Bolt | ||||||||
| ES300 | 14 (19) | |||||||
| Fuel Line Banjo Bolts | 24 (33) | |||||||
| Fuel Line Flare Nut (1) | 21 (28) | |||||||
| Fuel Pressure Pulsation Damper | ||||||||
| GS300 | 31 (42) | |||||||
| GS400 & SC400 | 24-29 (33-39) | |||||||
| Fuel Rail Mounting Bolts | ||||||||
| GS300 | 15 (21) | |||||||
| LS400 & SC400 | 13 (18) | |||||||
| SC300 & GS300 | 15 (21) | |||||||
| Fuel Rail Mounting Nuts | ||||||||
| GS400 | 13 (18) | |||||||
| Fuel Tank Mounting Bolts | 18 (25) | |||||||
| Generator Bracket Bolt/Nut | 30 (40) | |||||||
| Heated Oxygen Sensor | 31 (42) | |||||||
| Intake Air Connector Bolts/Nuts | ||||||||
| GS300 & SC300 | 21 (28) | |||||||
| Intake Air Control Valve Nuts | 10 (16) | |||||||
| Intake Manifold Bolts/Nuts | ||||||||
| ES300 | (2) 11 (15) | |||||||
| LS400 | (3) 13 (18) | |||||||
| Knock Sensor | 33 (45) | |||||||
| Fuel Pressure Pulsation Damper | ||||||||
| GS300 | 29 (39) | |||||||
| SC300 | 31 (42) | |||||||
| Power Steering Pump Rear Stay | 29 (39) | |||||||
| Starter Bolts | ||||||||
| GS300 & SC300 | 27 (37) | |||||||
| Shift Cable-To-Control Lever Nut | 11 (15) | |||||||
| Throttle Body Nuts | ||||||||
| ES300 | 14 (19) | |||||||
| GS300 | 15 (21) | |||||||
| GS400, LS400 & SC400 | 13 (18) | |||||||
| Upper-To-Lower Intake Manifold Bolts/Nuts | 13 (18) | |||||||
| Water Outlet Bolts | ||||||||
| ES300 | 11 (15) | |||||||
| INCH Lbs. (N.m) | ||||||||
| Crankshaft Position Sensor Bolt | ||||||||
| LS400 & SC400 | 57 (6.4) | |||||||
| EGR Valve & Pipe Nuts | 106 (12) | |||||||
| Fuel Pump Protector | 35 (3.9) | |||||||
| Fuel Pump-To-Tank Bolts | 35 (3.9) | |||||||
|
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RENDER: 1.0x
NO RELATED
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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.