How do I remove and install a throttle body on Buick LaCrosse?

Take off the air intake duct first on 2009 and earlier models by removing the left fender brace. Disconnect the PCV fresh air inlet hose from the duct and loosen the hose clamp screws at the throttle body and air filter box, then pull back clamps and remove it. In 2010 and later V6 engines, pry out the PCV tube from the duct and loosen hose clamp screws at both air filter box and throttle body or air intake resonator. To take off 2.4L engines' air intake resonator, loose just one screw so that you can pull it out of the throttle body. Firstly, remove cable from negative terminal of battery then proceed to remove other parts as instructed below: in 2009 model vehicles for example, begin with taking out an intake duct henceforth followed by disconnecting an air filter element; this should be done without necessarily unplugging electrical connectors before removing PCM together with its corresponding wiring harness while for those having separate TCMs follow same procedure. Remove Box by pulling it up through grommets. However, in case of a separate TCM do same to it. Then pull upwards until disconnected from its grommets. For all later models after 2010, start by taking out an intake duct before detaching electric connector located at MAF sensor then lift air filter box away from grommets completely. However,the installation of both is basically undoing their removals.

Genuine Buick LaCrosse Air Filter Box

Air Filter Housing

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Buick LaCrosse Housing, Air Cleaner Lower
Part Number: 13335601
$102.65 MSRP: $153.46
You Save: $50.81 (34%)
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Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Air Cleaner Body, Lower Cover, Lower Housing
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick LaCrosse Housing, Air Cleaner Upper
Part Number: 10353742
$102.58 MSRP: $114.09
You Save: $11.51 (11%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Upper Housing
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX (US)/ALLURE CX (CAN), CX 4 DOOR, CXL 4 DOOR, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS(US)/Allure CXS(CAN), SUPER SERIES 4 DOOR | 6 Cyl 3.6L, 6 Cyl 3.8L
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Buick LaCrosse Housing, Air Cleaner Upper
Part Number: 22754183
$14.52 MSRP: $22.84
You Save: $8.32 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Cover, Upper Cover
- Position: Upper
- Replaces: 13335600
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick LaCrosse Housing, Air Cleaner Upper
Part Number: 13363208
$53.79 MSRP: $80.42
You Save: $26.63 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Upper Cover
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 Buick LaCrosse | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 6 Cyl 3.6L
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Buick LaCrosse Housing, Air Cleaner Lower
Part Number: 13363207
$64.85 MSRP: $96.95
You Save: $32.10 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Lower Cover
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 Buick LaCrosse | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 6 Cyl 3.6L
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Buick LaCrosse Cleaner Assembly, Air
Part Number: 23451063
$135.35 MSRP: $203.27
You Save: $67.92 (34%)
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Product Specifications
- Other Name: CLEANER, Air Intake; Air Cleaner Assembly, Air Cleaner Body
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | 4 DOOR CX EXT NOTCHBACK, 4 DOOR CXL EXT NOTCHBACK, 4 DOOR CXS EXT NOTCHBACK | 6 Cyl 3.6L
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Buick LaCrosse Cover Assembly, Air Cleaner Housing
Part Number: 15823965
$80.25 MSRP: $100.97
You Save: $20.72 (21%)
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Product Specifications
- Other Name: COVER, Air Cleaner Intake; Cover
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Buick LaCrosse | CX (US)/ALLURE CX (CAN), CX 4 DOOR, CXL 4 DOOR, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS(US)/Allure CXS(CAN) | 6 Cyl 3.8L
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Buick LaCrosse Housing Assembly, Air Cleaner Upper
Part Number: 10389505
$113.29 MSRP: $142.53
You Save: $29.24 (21%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Air Cleaner Assembly, Housing Assembly
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.8L
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Buick LaCrosse Cover,Air Cleaner Housing
Part Number: 19178599
Product Specifications
- Other Name: COVER, Air Cleaner Intake
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Buick LaCrosse | CX (US)/ALLURE CX (CAN), CX 4 DOOR, CXL 4 DOOR, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS(US)/Allure CXS(CAN), SUPER SERIES 4 DOOR | 6 Cyl 3.8L
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Buick LaCrosse Cover Asm,Air Cleaner Housing
Part Number: 19210743
Product Specifications
- Other Name: COVER, Air Cleaner Intake; Cover
- Replaces: 10342823
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.8L
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Buick LaCrosse Housing Assembly, Air Cleaner Upper
Part Number: 25888389
$341.69 MSRP: $513.15
You Save: $171.46 (34%)
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Upper Housing
- Position: Upper
- Replaces: 15871618
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | SUPER SERIES 4 DOOR | 8 Cyl 5.3L
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Buick LaCrosse Cover Asm,Air Cleaner Housing
Part Number: 19210744
Product Specifications
- Other Name: COVER, Air Cleaner Intake; Cover
- Replaces: 10342824
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.6L
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Buick LaCrosse Cover Asm,Air Cleaner Housing
Part Number: 19210742
Product Specifications
- Other Name: COVER, Air Cleaner Intake
- Replaces: 10342864
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.8L
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Buick LaCrosse Cover,Air Cleaner Housing
Part Number: 19152541
Product Specifications
- Other Name: COVER, Air Cleaner Intake; Cover
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Buick LaCrosse | CX (US)/ALLURE CX (CAN), CX 4 DOOR, CXL 4 DOOR, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS(US)/Allure CXS(CAN), SUPER SERIES 4 DOOR | 6 Cyl 3.8L
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Buick LaCrosse Housing, Air Cleaner Upper
Part Number: 22754182
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Upper Cover
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2016 Buick LaCrosse | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick LaCrosse Cover Assembly, Air Cleaner Housing
Part Number: 25888384
Product Specifications
- Other Name: COVER, Air Cleaner Intake; Cover
- Replaces: 10350738
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | SUPER SERIES 4 DOOR | 8 Cyl 5.3L
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Buick LaCrosse Housing Assembly, Air Cleaner Lower
Part Number: 15871616
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Lower Housing
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | SUPER SERIES 4 DOOR | 8 Cyl 5.3L
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Buick LaCrosse Housing Assembly, Air Cleaner Lower
Part Number: 15219042
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Lower Housing
- Position: Lower
- Replaces: 10353751
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX (US)/ALLURE CX (CAN), CX 4 DOOR, CXL 4 DOOR, CXL(US)/ALLURE CXL(CAN), CXS 4 DOOR, CXS(US)/Allure CXS(CAN), SUPER SERIES 4 DOOR | 6 Cyl 3.6L, 6 Cyl 3.8L
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Buick LaCrosse Housing Assembly, Air Cleaner Upper
Part Number: 10389509
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting; Air Cleaner Assembly
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.6L
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Buick LaCrosse Housing Assembly, Air Cleaner Upper
Part Number: 10389506
Product Specifications
- Other Name: HOUSING, Air Cleaner To Carb/Throttle Body Mounting
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Buick LaCrosse | CX 4 DOOR, CXL 4 DOOR, CXS 4 DOOR | 6 Cyl 3.8L

Buick LaCrosse Air Filter Box Parts Questions & Experts Answers

Cover,Air Cleaner Housing
19178599
Q: How do I remove and install a throttle body on Buick LaCrosse?
A: Take off the air intake duct first on 2009 and earlier models by removing the left fender brace. Disconnect the PCV fresh air inlet hose from the duct and loosen the hose clamp screws at the Throttle Body and air filter box, then pull back clamps and remove it. In 2010 and later V6 engines, pry out the PCV tube from the duct and loosen hose clamp screws at both air filter box and throttle body or air intake resonator. To take off 2.4L engines' air intake resonator, loose just one screw so that you can pull it out of the throttle body. Firstly, remove cable from negative terminal of battery then proceed to remove other parts as instructed below: in 2009 model vehicles for example, begin with taking out an intake duct henceforth followed by disconnecting an air filter element; this should be done without necessarily unplugging electrical connectors before removing PCM together with its corresponding wiring harness while for those having separate TCMs follow same procedure. Remove Box by pulling it up through grommets. However, in case of a separate TCM do same to it. Then pull upwards until disconnected from its grommets. For all later models after 2010, start by taking out an intake duct before detaching electric connector located at MAF sensor then lift air filter box away from grommets completely. However,the installation of both is basically undoing their removals.

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