How to replace the A/C Expansion Valve on Cadillac CTS?

There are various methods for converting high-pressure liquid refrigerant to lower pressure vapor in air conditioning systems. This conversion occurs at the air conditioning evaporator, which is cooled as the refrigerant passes through, ultimately cooling the airflow for delivery through the vents. Typically, this conversion is achieved through a sudden change in tubing size, while some vehicles may have a removable controlled orifice in one of the AC pipes at the firewall. However, the models I use employ an A/C expansion valve that serves the same purpose as a controlled orifice. To remove the A/C expansion valve, it is necessary to have the air conditioning system discharged by a licensed technician. After discharging, the evaporator core can be removed, and the refrigerant lines disconnected from the A/C expansion valve. The valve can then be removed by taking out the two securing bolts. The installation process is the reverse of removal. Finally, it is important to have the system evacuated, recharged, and leak tested by the same shop that discharged it.

Genuine Cadillac CTS A/C Expansion Valve

Air Conditioning Expansion Valve

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3 A/C Expansion Valves found

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Cadillac CTS Valve Kit, A/C Evaporator Thermal Expansion
Part Number: 22799445
- Other Name: VALVE KIT, A/C Expansion Refrigerant; Expansion Valve
$49.92 MSRP: $104.88
You Save: $54.96 (53%)

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Fits the following Vehicles:
2014-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, 4 DOOR V-SERIES SEDAN | 4 Cyl 2.0L, 6 Cyl 3.6L, 8 Cyl 6.2L
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Cadillac CTS Valve Kit,A/C Evaporator Thermostat Expansion
Part Number: 19129999
- Other Name: VALVE KIT, A/C Expansion Refrigerant; Expansion Valve
- Replaces: 89022549
$90.92 MSRP: $191.02
You Save: $100.10 (53%)

Add to Cart
More Info
Fits the following Vehicles:
2008-2015 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR RHD, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD), V 2 DOOR COUPE, V 4 DOOR, V 4 DOOR SEDAN, V 4 DOOR WAGON | 6 Cyl 3.0L, 6 Cyl 3.6L, 8 Cyl 6.2L
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Cadillac CTS Valve Kit,A/C Evaporator Thermostat Expansion
Part Number: 25740393
- Other Name: VALVE KIT, A/C Expansion Refrigerant; Expansion Valve, Thermistor
More Info
Fits the following Vehicles:
2003-2007 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.2L, 6 Cyl 3.6L, 8 Cyl 5.7L, 8 Cyl 6.0L
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Cadillac CTS A/C Expansion Valve Parts Questions & Answers

Valve Kit, A/C Evaporator Thermal Expansion
22799445
Q: How to replace the A/C Expansion Valve on Cadillac CTS?
A: There are various methods for converting high-pressure liquid refrigerant to lower pressure vapor in air conditioning systems. This conversion occurs at the air conditioning evaporator, which is cooled as the refrigerant passes through, ultimately cooling the airflow for delivery through the vents. Typically, this conversion is achieved through a sudden change in tubing size, while some vehicles may have a removable controlled orifice in one of the AC pipes at the firewall. However, the models I use employ an A/C expansion valve that serves the same purpose as a controlled orifice. To remove the A/C expansion valve, it is necessary to have the air conditioning system discharged by a licensed technician. After discharging, the evaporator core can be removed, and the refrigerant lines disconnected from the A/C expansion valve. The valve can then be removed by taking out the two securing bolts. The installation process is the reverse of removal. Finally, it is important to have the system evacuated, recharged, and leak tested by the same shop that discharged it.