Mazda CX-5 Service & Repair Manual: Expansion Valve Removal/Installation

Mazda CX-5 Service & Repair Manual / HVAC / A/C / Expansion Valve Removal/Installation

1. Disconnect the negative battery cable..

2. Discharge the refrigerant from the system..

CAUTION:

If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.

3. Remove the nut.

4. Remove the clip.

5. Disconnect the refrigerant pressure sensor connector.

6. Disconnect the engine ground.

7. Remove the bolt and disconnect the cooler hose (LO) and cooler pipe. Do not allow compressor oil to spill.

8. Set the cooler hose (LO) and cooler pipe aside as shown in the figure while being careful not to let remaining oil in the pipes to spill.

CAUTION:

When setting the cooler hose (LO) and cooler pipe aside, only bend the flexible part of the hose. If force is applied to areas other than the flexible hose, the pipe will bend and could be damaged.

9. Remove the bolt.

10. Remove the expansion valve. Do not allow compressor oil to spill.

11. Install in the reverse order of removal.

12. Perform the refrigerant system performance test..

Expansion Valve

Purpose The expansion valve atomizes liquid refrigerant to facilitate cooling of the evaporator. Function The expansion valve reduces the pressure of liquid refrigerant rapidly ...

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