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 SC 430FACTORY OEM SERVICE PROCEDURE
Service Specifications
AIR CONDITIONING SPECIFICATIONS
| Application | Specification | |||||||
|---|---|---|---|---|---|---|---|---|
| Compressor Type | 7SBU16 | |||||||
| Compressor Belt Tension | (1) | |||||||
| Compressor Oil Capacity | (2) 4.1 ozs. | |||||||
| Refrigerant (R-134a) Capacity | 19.4-22.9 ozs. | |||||||
| System Operating Pressures (3) | ||||||||
| High Side | 199-213 psi (14-15 kg/cm2 ) | |||||||
| Low Side | 21-36 psi (1.5-2.5 kg/cm2 ) | |||||||
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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:
- • 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.