1997-2001 Lexus GS 300, GS 400 Air Conditioning System Service Manual
Comprehensive service data for Lexus GS 300/400 models covering AC system components, procedures, and troubleshooting. Publication C4085-91017.
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Models Covered & Key Technical Specifications
Lexus GS 300 / GS 400 (JT8BD68S1V0035262) – 1997-2001 Air Conditioning System Manual | Automotive Suite.
- Measured Interference Fit: 10 N-m is specified as the torque for compressor mounting fasteners Requirements.
- Established Circuit Specs: For diagnostic purposes, 4.1 N-m is measured at the expansion valve connections Threshold.
- Factory Climate Parameters: 100 degrees C controls the fan speed for high-temperature operation Mapping.
- Approved Physical Specs: The compressor requires 26 N-m for the rear mounting bolts Configuration.
- Reference Coupling Torques: 52 N-m -- signifies the torque for the compressor bracket Benchmarks.
- Critical End Play: The drive belt tensioner governs the proper belt tension Range.
Professional Workshop Service Manual & Technical Specifications
Applied Maintenance Air Conditioning System Manual: Lexus GS 300/400 manual Parts-Reference
Coverage-Scope: AC System components, Diagnostics, and Repair Procedures // Coverage-Scope: Car / Lexus AC Logic // Coverage-Scope: System procedures and specifications.
| Performance-Element | System-Path | Calibration-Standards |
|---|---|---|
| Compressor and Magnetic Clutch | Refrigerant Line | Torque specifications up to 72 N-m. |
| Condenser | Air Conditioning Unit | Mounting torque up to 12.3 N-m. |
| Evaporator | Components | O-ring lubrication for assembly. |
| Heater Radiator | Air Conditioning Unit Components | Bolt torque of 4.1 N-m specified. |
| Blower Motor | Defogger System | Wiring harness inspection. |
| Expansion Valve | Sensor and Actuator Control | Diagnostic procedures for various sensors. |
OEM specifications cover the entire air conditioning system. This manual details component locations, removal, installation, and inspection procedures. It includes diagrams for the compressor, condenser, evaporator, and other AC system parts. Specific torque values are provided for most connections to ensure Proper assembly and system integrity. The manual also outlines troubleshooting steps and diagnostic checks for common issues.
Torque specifications are documented for various components to ensure proper vibration dampening and system integrity.
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