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Genuine Buick Regal EGR Valve
Emissions EGR Valve- Select Vehicle by Model
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19 EGR Valves found
Buick Regal Valve,EGR
Part Number: 12633889$127.33 MSRP: $264.40You Save: $137.07 (52%)Ships in 1-2 Business Days
Buick Regal Valve Assembly, Fuel Upper Cnst Control
Part Number: 17085929$21.59 MSRP: $62.60You Save: $41.01 (66%)Ships in 1-2 Business Days
Buick Regal Valve Assembly, Evap Emission Canister Purge Solenoid
Part Number: 1997289$42.12 MSRP: $147.87You Save: $105.75 (72%)Ships in 1-2 Business Days
Buick Regal EGR Valve
The EGR Valve in Buick Regal is an important component as it relates to the recycling of exhaust gases back in the combustion chamber so as to lower the formation of nitrogen oxide (NOx). The EGR Valve re-circulates a portion of exhaust gas to reduce oxygen content and mixes it with some inert gases which have a heat absorbing capacity hence reducing the peak temperatures responsible for the formation of NOx. Most importantly this mechanism is useful in achieving the required emissions besides increasing the engine efficiency since there are no limits to the throttle size as well as avoiding pumping losses. Throughout the generations of Buick Regal models, there were utilized the mechanical orifice jets and EGR Valves that are made to respond to engine conditions such as coolant temperature and manifold vacuum. Some of today's EGR systems utilize backpressure transducers to control the flow as per the load demanded from the engine. However, EGR Valves used in Buick Regal vehicles functions well with the only disadvantage of depositing carbon, and therefore should be often cleaned.
Each OEM Buick Regal EGR Valve we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
Buick Regal EGR Valve Parts Questions & Experts Answers
- Q: What Are the Function of the Exhaust Gas Recirculation System and EGR Valve and How Is It Tested on Buick Regal?A: The 2-barrel engines have EGA with a metering valve, vacuum line to the carburetor, and exhaust gas passages cast into the intake manifold. Called the EGA valve, this one is operated by the vacuum from the carburetor and opens and closes to enable the mixture of the exhaust gases with the fuel and air to provide a non-misfire or pinging at part throttle. This system reduces combustion temperature and hence decrease nitrogen oxides (NOx) emission, with the valve closed at idle and at full throttle. In many configurations, it is a thermal vacuum switch that regulates vacuum to the EGR valve in order to eliminate stalling and rough idle when the engine is cold. As the vehicle accelerates, the valve opens at specific vacuum with direct aim of admitting exhaust gases into the mixture. Some of the California engines have a provision that includes a dual diaphragm EGR valve to help in operation during non-constant vacuum conditions. Starting from models of the year 1977, manufacturers have employed back pressure EGR valves which are triggered by exhaust back pressure in order to control the EGR flow with respect to the load on the engine. The later models incorporate ported signal vacuum EGR valves and the particular systems employ pulse width modulation in order to control EGR under some circumstances. Measures that are taken to test for EGA issues include checking for EGA that is either too large or small, examining the vacuum hoses and testing the functionality of the EGA valve. An EGR valve and the thermal vacuum switch are removed and reinstalled in the system; details should be paid to vacuum lines, and sealing should be appropriate.
Related Buick Regal Parts
Buick Regal EGR Valve Gasket
Buick Regal EGR Vacuum Solenoid
Buick Regal Idle Control Valve
Buick Regal EGR Filter
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