How to replace the A/C Expansion Valve in a system on Buick LaCrosse?

The first step to replace the thermal expansion valve (TXV) must be a recovery of the refrigerant from the a/c system. First remove the Evaporator tube to txv nut then disconnect both Evaporator outlet and inlet tubes that are attached to the txv. Immediately cover the Evaporator inlet and outlet tubes with caps after discarding the sealing washers because this action prevents contamination of the refrigerant system. The replacement procedure requires you to take out the txv from the Evaporator core after removing its bolts while again discarding the sealing washers. Two new sealing washers on the Evaporator core must be added before txv installation on the Evaporator core using txv-to-Evaporator bolts and tightening both bolts to 7 n.m (62 lb in). Uncover and untape both Evaporator tubes and then place new sealing washers on these tubes before attaching these tubes to the txv. Attach the Evaporator tube nut before tightening it to 27 n.m (20 lb ft). Evacuation of the a/c system must be followed by charging and completion of a halogen leak detector (J 39400-A) test on the fittings.

How to replace the A/C Expansion Valve on Buick Enclave?

As a first step for thermal expansion valve replacement you need to recover the refrigerant from the system. Begin by extracting the outlet duct of the air cleaner followed by removing any windshield washer solvent heaters which may exist. Disconnect the evaporator thermal expansion valve (TXV) tube from the TXV followed by discarding the seal washers before removing the TXV bolts and extracting the TXV while again discarding the washers. New seal washers should be placed on evaporator core fittings before installing the TXV and the TXV bolts need to be tightened to 5 N.m (44 lb in). New sealing washers should be added to the evaporator TXV tube fittings before connecting the condenser tube and evaporator hose to the TXV which requires tightening the TXV nut to 20 N.m (15 lb ft). To finish the procedure you need to conduct a leak check on the fittings through use of the J 39400-A Halogen Leak Detector. Install back the air cleaner outlet duct and reattach the windshield washer solvent heater if removed and evacuate and charge the refrigerant system.

How to replace the A/C Expansion Valve in a system on Buick Rendezvous?

The first step for thermal expansion valve (TXV) replacement begins with proper procedures to recover refrigerant from the a/c system. Circumvent heat hoses first then remove the vacuum hose from the Brake Booster before its repositioning. Begin by loosening the Evaporator outlet tube to txv nut before detaching the Evaporator outlet tube from the txv as well as from the Evaporator inlet tube. The technician should immediately discard the sealing washers and cap or apply tape over the a/c refrigerant tubes to avoid contamination. Take out the txv from the Evaporator core by executing the txv to Evaporator bolt removal and discard both sealing washers before capping or taping off the Evaporator core. Place new sealing washers on the Evaporator core and secure the txv to the core with txv to Evaporator bolts that should be tightened to 3.2 n.m (28 lb in). First remove the tape or cap from the a/c refrigerant tubes then install sealing washers to each tube before connecting the Evaporator outlet to the Evaporator inlet then proceed with connecting the Evaporator tubes to the txv. Tighten the Evaporator outlet tube nut to 16 n.m (12 lb ft). The vacuum hose should be reconnected to the Brake Booster before realigning the heater hoses to perform an a/c system evacuation and recharge process. The last step includes conducting a leak test of component fittings using the halogen leak detector (J 39400-A).

OEM Buick A/C Expansion Valve

Air Conditioning Expansion Valve

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23 A/C Expansion Valves found

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Buick Expansion Valve, Green Line
Part Number: 52495729
$85.31 MSRP: $175.32
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Evaporator; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant; Valve, A/C Expansion Refrigerant; Valve Kit, A/C Evaporator
Fits the following Buick Models:
- LaCrosse | 2005-2009 | CX, CXL, CXS, Super | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS
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Buick Expansion Valve
Part Number: 95018101
$67.65 MSRP: $139.00
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Encore | 2013-2022 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Expansion Valve
Part Number: 13313727
$66.94 MSRP: $137.57
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- LaCrosse | 2010-2016 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2011-2017 | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Verano | 2012-2017 | Base, Convenience, Leather, Premium, Sport Touring, Turbo | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick Expansion Valve
Part Number: 15266666
$104.98 MSRP: $197.14
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Product Specifications
- Other Name: Valve Kit-A/C Evaporator Thermal Expansion; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
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Buick Drain Valve
Part Number: 15189481
$5.08 MSRP: $9.08
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Product Specifications
- Other Name: Valve, Air Conditioner Evaporator; Drain Tube; Valve, A/C Evaporator Core Housing; Valve, A/C Evaporator
- Replaces: 15650071
Fits the following Buick Models:
- Enclave | 2008-2024 | Avenir, Base, Convenience, CX, CXL, Essence, Leather, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 42747630
$60.39 MSRP: $107.84
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Encore GX | 2020-2024 | Avenir, Essence, Preferred, Select, Sport Touring | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Buick Expansion Valve
Part Number: 84400227
$57.99 MSRP: $119.18
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Envision | 2019-2020 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Buick Expansion Valve
Part Number: 13363526
$125.71 MSRP: $258.35
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- LaCrosse | 2013-2016 | Base, Leather, Premium, Sport Touring, Touring | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 39141360
$31.30 MSRP: $58.78
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
- Replaces: 13435996
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
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Buick Expansion Valve
Part Number: 22816195
$71.72 MSRP: $147.37
You Save: $75.65 (52%)
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Product Specifications
- Other Name: Valve, Air Conditioner Evaporator; A/C Expansion Valve; Valve, A/C Expansion Refrigerant; Valve, A/C Evaporator
Fits the following Buick Models:
- Enclave | 2013-2024 | Avenir, Base, Convenience, Essence, Leather, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 15871957
$12.63 MSRP: $22.86
You Save: $10.23 (45%)
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Product Specifications
- Other Name: Valve Kit-A/C Evaporator Thermal Expansion; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant; Valve Kit, A/C Evaporator
- Replaces: 10364923
Fits the following Buick Models:
- Terraza | 2005-2007 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Expansion Valve
Part Number: 22804123
$61.28 MSRP: $181.34
You Save: $120.06 (67%)
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Product Specifications
- Other Name: Valve, Air Conditioner Evaporator; A/C Expansion Valve; Valve, A/C Expansion Refrigerant; Valve, A/C Evaporator
- Replaces: 25914262, 15920863
Fits the following Buick Models:
- Enclave | 2008-2012 | Base, CX, CXL | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 22816159
$103.46 MSRP: $212.63
You Save: $109.17 (52%)
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Product Specifications
- Other Name: Valve, Air Conditioner Evaporator; A/C Expansion Valve; Valve, A/C Evaporator
Fits the following Buick Models:
- Enclave | 2013-2017 | Base, Convenience, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 23176941
$81.38 MSRP: $147.29
You Save: $65.91 (45%)
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Envision | 2016-2018 | Base, Essence, Preferred, Premium | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Buick Expansion Valve
Part Number: 22804122
$77.10 MSRP: $158.43
You Save: $81.33 (52%)
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Product Specifications
- Other Name: Valve, Air Conditioner Evaporator; A/C Expansion Valve; Valve, A/C Expansion Refrigerant; Valve, A/C Evaporator
- Replaces: 25786451
Fits the following Buick Models:
- Enclave | 2008-2017 | Base, Convenience, CX, CXL, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 84806899
$50.98 MSRP: $104.75
You Save: $53.77 (52%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
- Replaces: 23506186
Fits the following Buick Models:
- Envision | 2021-2023 | Avenir, Essence, Preferred | 4 Cyl 2.0 L GAS
- LaCrosse | 2017-2019 | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 84751077
$66.08 MSRP: $118.01
You Save: $51.93 (44%)
Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve
- Replaces: 84081131
Fits the following Buick Models:
- Enclave | 2018-2024 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Expansion Valve
Part Number: 52473611
Product Specifications
- Other Name: Valve, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve, A/C Expansion Refrigerant
Fits the following Buick Models:
- Skylark | 1996-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 4 Cyl 2.4 L GAS, 6 Cyl 3.1 L GAS
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Buick Expansion Valve
Part Number: 52460955
Product Specifications
- Other Name: Valve, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve, A/C Expansion Refrigerant
Fits the following Buick Models:
- Skylark | 1992-1993 | Custom, Gran Sport, Limited | 4 Cyl 2.3 L GAS, 6 Cyl 3.3 L GAS
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Buick Expansion Valve
Part Number: 39129483
$73.80 MSRP: $131.78
You Save: $57.98 (44%)
Product Specifications
- Other Name: Valve Kit, Air Conditioner Expansion Refrigerant; A/C Expansion Valve; Valve Kit, A/C Expansion Refrigerant
Fits the following Buick Models:
- Regal Sportback | 2018-2020 | Avenir, Base, Essence, GS, Preferred, Preferred II | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
- Regal TourX | 2018-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS

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1-20 of 23 Results

Buick A/C Expansion Valve Parts Questions & Experts Answers

Expansion Valve, Green Line
52495729
Q: How to replace the A/C Expansion Valve in a system on Buick LaCrosse?
A: The first step to replace the thermal expansion valve (TXV) must be a recovery of the refrigerant from the a/c system. First remove the Evaporator tube to txv nut then disconnect both Evaporator outlet and inlet tubes that are attached to the txv. Immediately cover the Evaporator inlet and outlet tubes with caps after discarding the sealing washers because this action prevents contamination of the refrigerant system. The replacement procedure requires you to take out the txv from the Evaporator core after removing its bolts while again discarding the sealing washers. Two new sealing washers on the Evaporator core must be added before txv installation on the Evaporator core using txv-to-Evaporator bolts and tightening both bolts to 7 n.m (62 lb in). Uncover and untape both Evaporator tubes and then place new sealing washers on these tubes before attaching these tubes to the txv. Attach the Evaporator tube nut before tightening it to 27 n.m (20 lb ft). Evacuation of the a/c system must be followed by charging and completion of a halogen leak detector (J 39400-A) test on the fittings.
Drain Valve
15189481
Q: How to replace the A/C Expansion Valve on Buick Enclave?
A: As a first step for thermal expansion valve replacement you need to recover the refrigerant from the system. Begin by extracting the outlet duct of the air cleaner followed by removing any windshield washer solvent heaters which may exist. Disconnect the evaporator thermal expansion valve (TXV) tube from the TXV followed by discarding the seal washers before removing the TXV bolts and extracting the TXV while again discarding the washers. New seal washers should be placed on evaporator core fittings before installing the TXV and the TXV bolts need to be tightened to 5 N.m (44 lb in). New sealing washers should be added to the evaporator TXV tube fittings before connecting the condenser tube and evaporator hose to the TXV which requires tightening the TXV nut to 20 N.m (15 lb ft). To finish the procedure you need to conduct a leak check on the fittings through use of the J 39400-A Halogen Leak Detector. Install back the air cleaner outlet duct and reattach the windshield washer solvent heater if removed and evacuate and charge the refrigerant system.
Expansion Valve
15221028
Q: How to replace the A/C Expansion Valve in a system on Buick Rendezvous?
A: The first step for thermal expansion valve (TXV) replacement begins with proper procedures to recover refrigerant from the a/c system. Circumvent heat hoses first then remove the vacuum hose from the Brake Booster before its repositioning. Begin by loosening the Evaporator outlet tube to txv nut before detaching the Evaporator outlet tube from the txv as well as from the Evaporator inlet tube. The technician should immediately discard the sealing washers and cap or apply tape over the a/c refrigerant tubes to avoid contamination. Take out the txv from the Evaporator core by executing the txv to Evaporator bolt removal and discard both sealing washers before capping or taping off the Evaporator core. Place new sealing washers on the Evaporator core and secure the txv to the core with txv to Evaporator bolts that should be tightened to 3.2 n.m (28 lb in). First remove the tape or cap from the a/c refrigerant tubes then install sealing washers to each tube before connecting the Evaporator outlet to the Evaporator inlet then proceed with connecting the Evaporator tubes to the txv. Tighten the Evaporator outlet tube nut to 16 n.m (12 lb ft). The vacuum hose should be reconnected to the Brake Booster before realigning the heater hoses to perform an a/c system evacuation and recharge process. The last step includes conducting a leak test of component fittings using the halogen leak detector (J 39400-A).

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