How to replace the fuel pressure regulator on Buick Century?

The first step to replace a Fuel Pressure Regulator requires removing fuel system pressure. First disconnect the vacuum line from the Fuel Pressure Regulator before you remove the fuel return pipe and its securing screw. Twisting the regulator as you lift it away from the Fuel Rail is possible by using a shop towel to capture any fuel that might spill. The maintenance process requires discarding of retainer components and spacer bracket along with removing inlet and return pipe o-rings. Check the filter screen for contamination and replace the Fuel Pressure Regulator in case of its contamination. Put clean engine oil on the Fuel Pressure Regulator o-rings before placing them onto the regulator assembly. Use compressed air for tests or cleaning operations on the regulator since submersion of this component in solvent baths is also prohibited. Tighten the screw only after connecting the fuel return pipe to the regulator since this prevents retainer and spacer bracket damage. Use the new retainer and spacer bracket to replace the ones on the Fuel Rail before securing the Fuel Pressure Regulator and its screw. Secure the Fuel Pressure Regulator screw to 8.5 n.m (75 lb in) along with tightening the engine fuel return pipe nut to 17 n.m (13 lb ft). Vin initiates the processes of vacuum line assembly followed by retainer and spacer bracket engagement check and then negative Battery Cable connection. Complete the inspection process by turning the ignition two times and surveying for fuel leakages.

OEM Buick Century Fuel Pressure Regulator

Fuel Tank Pressure Regulator

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4 Fuel Pressure Regulators found

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Buick Century Fuel Pressure Regulator Part Number: 17120665
$123.49 MSRP: $250.81
You Save: $127.32 (51%)
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Product Specifications
- Other Name: Regulator, Fuel Pressure; Regulator Kit, Fuel Injection; Regulator, Fuel Injection
- Replaces: 17120440
- 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 Fuel Pressure Regulator Part Number: 17107483
$12.35 MSRP: $156.70
You Save: $144.35 (93%)
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Product Specifications
- Other Name: Regulator Assembly, Fuel Pressure; Regulator Kit, Fuel Injection
- 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
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Buick Century Fuel Pressure Regulator Part Number: 17113622
$124.56 MSRP: $221.43
You Save: $96.87 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Regulator, Fuel Pressure; Regulator, Fuel Injection
- 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 Fuel Pressure Regulator Part Number: 17091410
Product Specifications
- Other Name: Regulator, Fuel Pressure; Regulator, Fuel Injection
- Replaces: 17112482, 17107485, 17107010
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993-1996 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS

Buick Century Fuel Pressure Regulator

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The Fuel Pressure Regulator is used in Buick Century cars to enable the exact fuel pressure that is required in the electronic fuelling injection system to be achieved. It is normally fastened on the fuel rail and works on spring as well as on diaphragm kind. Through a connection to the engine vacuum and the fuel return line, the regulator modifies the fuel delivery in response to the demands of the engine-while idling it lets extra fuel return to the tank while reducing the flow when there's more demand during acceleration. During the model years, Buick Century has used both pressure reducing regulators and back-pressure regulators for Fuel Pressure Regulators. The primary distinction lies in their operation: pressure reducing regulators decrease the inlet pressure while the back pressure regulators on the other hand sustains the pressure at the inlet end. As a rule of thumb, OEM regulators work well under normal circumstances, nonetheless, circumstances that involve modifications such as bigger injectors or high capacity fuel pumps call for adjustable regulators. These counterparts can improve the fuel systems' performing and flexibility of the configurations.

Buick Century Fuel Pressure Regulator Parts Questions & Experts Answers

Fuel Pressure Regulator
17113622
Q: How to replace the fuel pressure regulator on Buick Century?
A:
The first step to replace a Fuel Pressure Regulator requires removing fuel system pressure. First disconnect the vacuum line from the Fuel Pressure Regulator before you remove the fuel return pipe and its securing screw. Twisting the regulator as you lift it away from the Fuel Rail is possible by using a shop towel to capture any fuel that might spill. The maintenance process requires discarding of retainer components and spacer bracket along with removing inlet and return pipe o-rings. Check the filter screen for contamination and replace the Fuel Pressure Regulator in case of its contamination. Put clean engine oil on the Fuel Pressure Regulator o-rings before placing them onto the regulator assembly. Use compressed air for tests or cleaning operations on the regulator since submersion of this component in solvent baths is also prohibited. Tighten the screw only after connecting the fuel return pipe to the regulator since this prevents retainer and spacer bracket damage. Use the new retainer and spacer bracket to replace the ones on the Fuel Rail before securing the Fuel Pressure Regulator and its screw. Secure the Fuel Pressure Regulator screw to 8.5 n.m (75 lb in) along with tightening the engine fuel return pipe nut to 17 n.m (13 lb ft). Vin initiates the processes of vacuum line assembly followed by retainer and spacer bracket engagement check and then negative Battery Cable connection. Complete the inspection process by turning the ignition two times and surveying for fuel leakages.