How to clean fuel injectors on Buick Century?

The items required to clean fuel injectors are fuel line shut-off adapters (J 37287), Fuel Injector cleaner (J 35800-A), 3/8 fuel line shut-off valve (J 42873-1), 5/16 return pipe shut-off valve (J 42873-2), 3/8 fuel pipe shut-off valve (J 42964-1), and 5/16 fuel pipe shut-off valve (J 42964-2). Top-engine cleaner gm p/n 12346535 from us dealers and canadian p/n 992872 from canadian dealers should be used with the canister valve maintained in the closed position. Other brand top-engine cleaners should be mixed with 3.24 oz (96 ml) of regular unleaded gasoline for the proper solution. Connect shut-off adapters to the applicable fuel lines before the vehicle gets disconnected from its Fuel Pump and the feed and return lines get separated for plugging. Use the Fuel Injector cleaner as a connection to the Fuel Rail before applying 510 kpa (75 psi) pressure for running the engine until stalling occurs. The following operation requires reconnecting the fuel lines and running the engine for two consecutive minutes. Conduct the injector balance test to check fuel pressure drops then replace the injector showing the lowest pressure drop if needed. For optimal performance of fuel injectors the customer should add one ounce of port Fuel Injector cleaner gm p/n 12345104 or canadian p/n 10953467 to the fuel tank before every gallon of gasoline and regularly change fuel brands and add cleaner to maintain injector efficiency. Testing the vehicle on the road will validate the resolution of the reported problem.

OEM Buick Century Fuel Injector

Gas Injector

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10 Fuel Injectors found

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Buick Century Injector Part Number: 19244619
$62.96 MSRP: $196.46
You Save: $133.50 (68%)
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector; Injector, Fuel Injection
- Replaces: 17102747, 17111799, 17059402, 17122509, 17112632
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Buick Century | Custom, Limited, Special | 6 Cyl 3.3 L GAS
- 1987-1989 Buick Century | Custom, Estate Wagon, Limited | 6 Cyl 2.8 L GAS
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Buick Century Injector Part Number: 19244616
$76.99 MSRP: $240.20
You Save: $163.21 (68%)
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector
- Replaces: 17113124, 17113197
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS
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Buick Century Injector Part Number: 17111799
$62.96 MSRP: $196.46
You Save: $133.50 (68%)
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Product Specifications
- Other Name: Fuel Injector
- Replaced by: 19244619
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1989 Buick Century | Custom, Estate Wagon, Limited | 6 Cyl 2.8 L GAS
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Buick Century Injector Part Number: 17112693
$13.78 MSRP: $199.88
You Save: $186.10 (94%)
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS
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Buick Century Injector Part Number: 19244620
$121.79 MSRP: $228.72
You Save: $106.93 (47%)
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector
- Replaces: 17113572, 17120262, 17107267
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1999 Buick Century | Custom, Limited, Special | 6 Cyl 3.1 L GAS
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Buick Century Injector Part Number: 12586554
$80.27 MSRP: $225.98
You Save: $145.71 (65%)
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Product Specifications
- Other Name: Injector, Fuel Injection; Fuel Injector
- Replaces: 17113623
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Buick Century | Custom, Limited, Special Edition | 6 Cyl 3.1 L GAS
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Buick Century Injector Part Number: 17111986
Product Specifications
- Other Name: Injector Kit, Throttle Body/Carburetor; Fuel Injector
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1988 Buick Century | Custom, Estate Wagon, Limited | 4 Cyl 2.5 L GAS
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Buick Century Injector Part Number: 25531467
Product Specifications
- Other Name: Injector, Fuel; Fuel Injector; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1988 Buick Century | Custom, Estate Wagon, Limited, T-Type | 6 Cyl 3.8 L GAS
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Buick Century Injection Nozzle Part Number: 22520376
Product Specifications
- Other Name: Nozzle Assembly; Injector; Nozzle, Fuel Injector Metering
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick Century | Custom, Estate, Estate Wagon, Limited, Olympia Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
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Buick Century Injector Part Number: 17112123
Product Specifications
- Other Name: Injector Kit, Throttle Body/Carburetor; Fuel Injector; Fuel Injector Kit, Throttle Body/Carburetor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1989-1992 Buick Century | Custom, Estate Wagon, Limited, Special | 4 Cyl 2.5 L GAS

Buick Century Fuel Injector

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The Combustion Control module in Buick Century vehicles is pertinent for the purpose of fuel injection into the engine's cylinder for the right combination of air and fuel to burn efficiently. This system together with the engine control unit ensures that the amount of fuel to be injected in the engine is metered and timed which is very important in the engine's performance and fuel efficiency. Some of the Buick Century cars have treasured direct fuel injection and other cars have relied on indirect fuel injection. Direct injection delivers fuel to the combustion chamber under high pressure while indirect injection delivers fuel and air to the chamber mixed together. The distinctions between them are based on the means of injection and the effectiveness, whereby direct injection is superior to the former. When Fuel Injectors are faulty, it poses serious problems to a cars' performance such as sluggish operations and inadequate power, thus the need to care for the components in Buick Century automobiles. Fuel Injectors should be inspected frequently with replacements of damaged ones being carried out in order to avoid worsening of the situation.

Buick Century Fuel Injector Parts and Q&A

Injector
12586554
Q: How to clean fuel injectors on Buick Century?
A:
The items required to clean fuel injectors are fuel line shut-off adapters (J 37287), Fuel Injector cleaner (J 35800-A), 3/8 fuel line shut-off valve (J 42873-1), 5/16 return pipe shut-off valve (J 42873-2), 3/8 fuel pipe shut-off valve (J 42964-1), and 5/16 fuel pipe shut-off valve (J 42964-2). Top-engine cleaner gm p/n 12346535 from us dealers and canadian p/n 992872 from canadian dealers should be used with the canister valve maintained in the closed position. Other brand top-engine cleaners should be mixed with 3.24 oz (96 ml) of regular unleaded gasoline for the proper solution. Connect shut-off adapters to the applicable fuel lines before the vehicle gets disconnected from its Fuel Pump and the feed and return lines get separated for plugging. Use the Fuel Injector cleaner as a connection to the Fuel Rail before applying 510 kpa (75 psi) pressure for running the engine until stalling occurs. The following operation requires reconnecting the fuel lines and running the engine for two consecutive minutes. Conduct the injector balance test to check fuel pressure drops then replace the injector showing the lowest pressure drop if needed. For optimal performance of fuel injectors the customer should add one ounce of port Fuel Injector cleaner gm p/n 12345104 or canadian p/n 10953467 to the fuel tank before every gallon of gasoline and regularly change fuel brands and add cleaner to maintain injector efficiency. Testing the vehicle on the road will validate the resolution of the reported problem.