2004 Lexus LS430 A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 2003-04 -> Evacuating System -> Using Charging Station -> Using Vacuum Pump
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

Using Vacuum Pump

Vacuum pumps suitable for removing air and moisture from A/C systems are commercially available. A specification for system pump down used here is 28-291/2 inches vacuum. This reading can be attained at or near sea level only. For each 1000 feet of altitude this operation is performed, the reading will be 1 inch vacuum higher. For example, at 5000 feet elevation, only 23-241/2 inches of vacuum can be obtained. The system refrigerant must be completely recovered before it can be evacuated. Damage to the vacuum pump will result if pressurized ...

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A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

A/C & Cooling System Maintenance -> Lexus -> 2003-04
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

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A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 2003-04 -> System Inspection -> Compressor -> Condenser -> Evaporator -> Receiver-Drier/Accumulator -> Refrigerant Line Restrictions -> Thermostatic Expansion Valve
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

While a detailed diagnostic procedure for all air conditioning systems would be impractical due to the many variations in construction and operation, there are three fundamental components of a total diagnosis:

  • Refrigerant systems must have an adequate, but not excessive charge.
  • Determination must be made whether the refrigerant system is governed by a cycling clutch compressor or by valves which control evaporator pressure.
  • The air distribution system (blower motor, switches, vacuum lines and air ducts) must be operational before checking the ...

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A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

Lexus -> Wiring Diagrams -> Except LX 470
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

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CLICK HERE TO GET FULL ACCESS TO 2004 Lexus LS430 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

Lexus -> Electric Cooling Fans -> Component Replacement -> Engine Coolant Temperature Switch -> ES 300 & ES 330 -> Fan Motor -> Fan Motor Relay -> Fan Motors -> GS 300, GS 430 & IS 300 -> High Pressure Switch -> LS 430 -> RX 300 -> SC 430
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

When servicing LX 470, refer to Land Cruiser in for service procedures.

ES 300 & ES 330

Refer to "Camry" in in "Toyota" for service procedures.

GS 300, GS 430 & IS 300

Fan Motor
  • Drain engine coolant into suitable container.
  • Remove air cleaner inlet.
  • Remove air cleaner and MAF meter assembly.
  • Disconnect upper radiator hose.
  • Disconnect ECM outlet duct from ECM box.
  • Disconnect wire for electric cooling fan from clamp on cooling fan.
  • Disconnect two electric cooling fan connectors.
  • Disconnect radiator...

CLICK HERE TO GET FULL ACCESS TO 2004 Lexus LS430 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus LS430 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2004 Lexus LS430 cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2004 Lexus LS430 4.3 V8 GAS

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