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

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6 A/C Expansion Valves found

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Buick Enclave Valve, Auxiliary A/C Evaporator & Blower Module Drain
Part Number: 15189481
$4.46 MSRP: $8.42
You Save: $3.96 (48%)
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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:
- 2008-2024 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
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Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22816195
$68.31 MSRP: $143.49
You Save: $75.18 (53%)
Ships in 1-2 Business Days
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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:
- 2013-2024 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
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Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22804122
$50.53 MSRP: $154.27
You Save: $103.74 (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
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Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22816159
$98.54 MSRP: $207.05
You Save: $108.51 (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
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Buick Enclave Valve Assembly, A/C Evaporator Thermal Expansion
Part Number: 22804123
$57.86 MSRP: $176.58
You Save: $118.72 (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
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Buick Enclave VALVE KIT-A/C EVPR THERMAL EXPN
Part Number: 86594094
$33.89 MSRP: $103.44
You Save: $69.55 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Expansion Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 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

Buick Enclave vehicles have the A/C Expansion Valve, which controls the flow of refrigerant on the air conditioning system to give the optimal performance. Through controlling this flow, the A/C Expansion Valve plays its role of enhancing the performance as well as operations of the A/C system. Though more detail on the part is not given by the quoted information stating the different types and styles that are required for different models of Enclave, the fact is highlighted that this A/C Expansion Valve part is quite crucial in ensuring that nothing hampers the smooth working of the system. The first one is through regulating the circulation of food refrigerants that is a critical in the cooling process. In general, the role of A/C Expansion Valve is extremely crucial in order to maintain a normal work of the car's air conditioning system.

Each OEM Buick Enclave A/C Expansion Valve we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

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.