How to replace the fuel injector and fuel rail on Buick LaCrosse?

One must start by decompressing the fuel system pressure before detaching the upper Intake Manifold in order to swap out the fuel injector as well as the fuel rail. First you should detach the fuel pipe retaining clip while also disconnecting the fuel feed pipe from the fuel injector rail. Clear debris through the Intake Manifold fuel injector opening by using compressed air while you detach the fuel rail through bolt removal. The operator should carefully remove the fuel rail assembly while maintaining the electrical connector terminals and spray tips and then support the fuel rail against damage to its components. Temporary caps must seal the fittings together with stoppers to block dirt and contaminants from entrance. The procedure begins by removing the fuel rail with injectors while you disengage the electric connector lock of the fuel injectors and disconnect the electrical connector. Use a screwdriver to eliminate the fuel injector retainer clip before removing the fuel injector while disposing of the fuel injector seals. Install new fuel injector seals before placing the fuel injector into position and fasten it with the retainer clip. After attaching the fuel injector electrical connector, use the lock to protect it. Mount the fuel rail with installed fuel injectors by running torque on the fuel rail bolts to reach 10 n.m (89 lb in). Connect the fuel feed pipe to the fuel rail before adding the fuel pipe retaining clip then reposition the upper Intake Manifold in its place.

OEM Buick LaCrosse Fuel Rail

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Buick LaCrosse Fuel Rail Part Number: 12629929
$160.74 MSRP: $326.46
You Save: $165.72 (51%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016, 2010 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12623366
$151.28 MSRP: $297.74
You Save: $146.46 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL, CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12623365
$163.31 MSRP: $295.58
You Save: $132.27 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL, CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12608366
$197.95 MSRP: $358.28
You Save: $160.33 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Fuel Rail Part Number: 12701658
$178.19 MSRP: $329.68
You Save: $151.49 (46%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12668188
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016, 2010 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12706269
$124.22 MSRP: $197.22
You Save: $73.00 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12671079
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12709433
$120.32 MSRP: $225.96
You Save: $105.64 (47%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12671078
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12654644
$251.84 MSRP: $455.82
You Save: $203.98 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12627090
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Fuel Rail Part Number: 12596571
$147.57 MSRP: $267.11
You Save: $119.54 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12594224
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12593604
$252.28 MSRP: $512.37
You Save: $260.09 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail Kit, Fuel Injection; Rail, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
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Buick LaCrosse Fuel Rail Part Number: 12579128
Product Specifications
- Other Name: Rail Kit-Multiport Fuel Injection Fuel; Rail Kit, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS

Buick LaCrosse Fuel Rail

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Buick LaCrosse Fuel Rail Parts and Q&A

Fuel Rail
12596571
Q: How to replace the fuel injector and fuel rail on Buick LaCrosse?
A:
One must start by decompressing the fuel system pressure before detaching the upper Intake Manifold in order to swap out the fuel injector as well as the fuel rail. First you should detach the fuel pipe retaining clip while also disconnecting the fuel feed pipe from the fuel injector rail. Clear debris through the Intake Manifold fuel injector opening by using compressed air while you detach the fuel rail through bolt removal. The operator should carefully remove the fuel rail assembly while maintaining the electrical connector terminals and spray tips and then support the fuel rail against damage to its components. Temporary caps must seal the fittings together with stoppers to block dirt and contaminants from entrance. The procedure begins by removing the fuel rail with injectors while you disengage the electric connector lock of the fuel injectors and disconnect the electrical connector. Use a screwdriver to eliminate the fuel injector retainer clip before removing the fuel injector while disposing of the fuel injector seals. Install new fuel injector seals before placing the fuel injector into position and fasten it with the retainer clip. After attaching the fuel injector electrical connector, use the lock to protect it. Mount the fuel rail with installed fuel injectors by running torque on the fuel rail bolts to reach 10 n.m (89 lb in). Connect the fuel feed pipe to the fuel rail before adding the fuel pipe retaining clip then reposition the upper Intake Manifold in its place.