How to replace the EGR valve on 2005 Buick LeSabre?

First disconnect the power source by turning OFF the ignition then separate the electrical connector which links to the EGR valve. The next step entails removing two retaining nuts from the EGR valve which enables you to pull out the EGR valve. Detach the gasket from the EGR valve inlet pipe for cleaning the inlet pipe from all debris and dirt buildup. The EGR inlet pipe receives a new gasket and then the EGR valve gets installed with its retaining nuts being torque to 30 N.m (22 lb ft) as per the Fastener Notice in Service Precautions. Reattach the EGR valve electrical connector as the last step.

OEM 2005 Buick LeSabre EGR Valve

Emissions EGR Valve

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2005 Buick LeSabre Solenoid Valve
Part Number: 21994122
$35.69 MSRP: $63.75
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Product Specifications
- Other Name: Solenoid Assembly; Evaporator Emission Canister; Intake Manifold Runner Control; Vapor Canister Purge & Vent Solenoids; Vent Valve; Vent Control Solenoid; Valve, Fuel Tank Evaporator/Purge Control
- Replaces: 25675824
- Item Weight: 0.60 Pounds
- Item Dimensions: 6.2 x 4.1 x 4.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 21994122
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2005 Buick LeSabre Submodels:
- Custom, Limited | 6 Cyl 3.8 L GAS
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2005 Buick LeSabre Throttle Position Sensor
Part Number: 12576918
Product Specifications
- Other Name: Valve, Emission Control System; EGR Vacuum Solenoid; EGR Valve; Valve, Emission Control System(EGR Control)
- Replaces: 17113278, 17113575, 12568582, 17093020, 17096188, 17113619, 17113618, 17113303, 17113615, 17113405
- Item Weight: 2.10 Pounds
- Item Dimensions: 6.4 x 4.9 x 3.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12576918
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Buick LeSabre Submodels:
- Custom, Limited | 6 Cyl 3.8 L GAS

2005 Buick LeSabre EGR Valve

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2005 Buick LeSabre EGR Valve Parts Questions & Experts Answers

Q: How to replace the EGR valve on 2005 Buick LeSabre?
A: First disconnect the power source by turning OFF the ignition then separate the electrical connector which links to the EGR valve. The next step entails removing two retaining nuts from the EGR valve which enables you to pull out the EGR valve. Detach the gasket from the EGR valve inlet pipe for cleaning the inlet pipe from all debris and dirt buildup. The EGR inlet pipe receives a new gasket and then the EGR valve gets installed with its retaining nuts being torque to 30 N.m (22 lb ft) as per the Fastener Notice in Service Precautions. Reattach the EGR valve electrical connector as the last step.