SCR90 6PK 12V Car AC Compressor OEM 1476182 1479820 For Ford Fiesta for Fusion1.25 1.4 WXFD145

The automobile compressor is the core component of the air conditioning system. It is responsible for compressing the refrigerant into high-temperature and high-pressure gas and cooling the air in the car through circulation. When you turn on the air conditioning switch in your car, the compressor will be activated and start working. It obtains power from the engine through an electromagnetic clutch and drive belt, and circulates refrigerant to the evaporator and condenser for heat exchange. This process cools and dehumidifies the air inside the car, providing a comfortable driving environment. The effectiveness and normal operation of the vehicle's air conditioning largely depends on the working status of the compressor.



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Precautions for Repairing an Automotive A/C Compressor

1.Safety First

Always disconnect the vehicle’s battery before starting repairs to avoid electrical hazards.

Wear protective gear (gloves, goggles) as refrigerant (e.g., R134a) can cause frostbite or chemical burns.

2.Recover Refrigerant Properly

Use an EPA-approved recovery machine to safely extract refrigerant. Never vent it into the atmosphere—it’s illegal and environmentally harmful.

3.Check Compressor Failure Root Cause

Inspect for leaks, clutch issues, or contamination (e.g., metal debris). Flush the system if debris is present to prevent repeat failure.

4.Oil Management

Drain and measure compressor oil. Replace with the correct type (PAG, ester, etc.) and quantity per manufacturer specs.

5.Component Inspection

Replace the receiver-drier/accumulator and expansion valve/orifice tube whenever the system is opened to prevent moisture contamination.

6.Proper Evacuation

Evacuate the system with a vacuum pump for at least 30 minutes to remove air/moisture before recharging.

7.Correct Refrigerant Charge

Use a manifold gauge set and charge refrigerant by weight (not pressure) as per the vehicle’s specifications.

8.Post-Repair Verification

Test clutch engagement, cooling performance, and check for leaks with a UV dye or electronic detector.

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