How do I replace the expansion valves in an air conditioning system for Buick Enclave,Chevrolet Traverse,GMC Acadia and Saturn Outlook?

There are multiple methods for converting high-pressure liquid refrigerant to lower-pressure vapor in air conditioning systems. This conversion occurs as the refrigerant passes through the evaporator, cooling the airflow for delivery to the vents. One common approach is to use a controlled orifice, which is often a removable component in the AC pipes at the firewall. However, the models covered in this manual utilize an A/C expansion valve (TXV) that serves the same purpose as a controlled orifice. To remove the front expansion valve, the air intake duct and windshield washer fluid heater (if present) must be taken out, followed by disconnecting the refrigerant lines from the TXV. If necessary, the power brake booster vacuum line should be disconnected and moved aside for better access. The TXV can then be removed by taking out the two bolts securing it to the firewall. For the rear auxiliary expansion valve, the passenger rear wheel and inner fender splash shield need to be removed first. From underneath the rear of the vehicle, the refrigerant lines should be disconnected from the rear auxiliary HVAC module by removing a single nut. Finally, the two bolts securing the TXV to the vehicle can be removed, allowing the valve to be taken out. When installing, all connections should be assembled with new O-rings or seals, lightly lubricated with R-134a refrigerant oil. The system should then be evacuated, charged, and leak tested.

Genuine Buick Enclave A/C Expansion Valve

Air Conditioning Expansion Valve

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

6 A/C Expansion Valves found

View related parts
Buick Enclave Valve, Auxiliary A/C Evaporator & Blower Module Drain
Part Number: 15189481
$4.35 MSRP: $8.20
You Save: $3.85 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, A/C Evaporator Core Housing; Drain Tube, Drain Valve
- Replaces: 15650071
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2021 Buick Enclave | BASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV, SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22816195
$66.51 MSRP: $139.71
You Save: $73.20 (53%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, A/C Evaporator; Expansion Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2021 Buick Enclave | BASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV, SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22816159
$95.95 MSRP: $201.61
You Save: $105.66 (53%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, A/C Evaporator; Expansion Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2017 Buick Enclave | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22804123
$56.34 MSRP: $171.94
You Save: $115.60 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, A/C Evaporator; Expansion Valve
- Replaces: 25914262, 15920863
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2012 Buick Enclave | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22804122
$49.21 MSRP: $150.21
You Save: $101.00 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: VALVE, A/C Evaporator; Expansion Valve
- Replaces: 25786451
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2012 Buick Enclave | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
Buick Enclave Valve Kit, A/C Evpr Thermal Expn
Part Number: 84751077
$65.79 MSRP: $118.01
You Save: $52.22 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Expansion Valve
- Replaces: 84081131
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2021 Buick Enclave | BASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV | 6 Cyl 3.6L

Buick Enclave A/C Expansion Valve Parts Questions & Experts Answers

Valve, Auxiliary A/C Evaporator & Blower Module Drain
15189481
Q: How do I replace the expansion valves in an air conditioning system for Buick Enclave,Chevrolet Traverse,GMC Acadia and Saturn Outlook?
A: There are multiple methods for converting high-pressure liquid refrigerant to lower-pressure vapor in air conditioning systems. This conversion occurs as the refrigerant passes through the evaporator, cooling the airflow for delivery to the vents. One common approach is to use a controlled orifice, which is often a removable component in the AC pipes at the firewall. However, the models covered in this manual utilize an A/C expansion valve (TXV) that serves the same purpose as a controlled orifice. To remove the front expansion valve, the air intake duct and windshield washer fluid heater (if present) must be taken out, followed by disconnecting the refrigerant lines from the TXV. If necessary, the power brake booster vacuum line should be disconnected and moved aside for better access. The TXV can then be removed by taking out the two bolts securing it to the firewall. For the rear auxiliary expansion valve, the passenger rear wheel and inner fender splash shield need to be removed first. From underneath the rear of the vehicle, the refrigerant lines should be disconnected from the rear auxiliary HVAC module by removing a single nut. Finally, the two bolts securing the TXV to the vehicle can be removed, allowing the valve to be taken out. When installing, all connections should be assembled with new O-rings or seals, lightly lubricated with R-134a refrigerant oil. The system should then be evacuated, charged, and leak tested.