Description
Vacuum Valve / Pressure Converter For Swirl Flaps By EATON For Citroën And Peugeot. Electric Exhaust Gas Recirculation (EGR) Solenoid Valve. Used Part With Functional Guarantee.
This Eaton vacuum/pressure valve is designed to control vacuum supply to swirl flaps and EGR systems on a range of Citroën and Peugeot petrol engines. It Acts As An Electromagnetic Solenoid That Modulates Vacuum To The Actuators, Enabling Proper Swirl Flap Operation And Exhaust Gas Recirculation Control. The Part Is Often Searched By Its Reference Numbers And Fits Several Stellantis Models, Making It A Common Replacement Item For Garages And DIY Enthusiasts.
Technical Information
- Manufacturer: Eaton
- Model: Citroën C5, Citroën C8, Peugeot 307, Peugeot 406, Peugeot 607, Peugeot 807
- Product Codes: 1951610, 1628CH
- Other Numbers: NFP (Reference Tag From Supplier Listing)
Function And Application
The Valve Regulates Vacuum Or Pressure Sent To Swirl Flap Actuators And The EGR Circuit, Allowing Controlled Airflow Swirl In The Intake Manifold And Accurate Exhaust Gas Recirculation. Proper Operation Improves Engine Torque At Low RPM, Reduces Emissions And Ensures Stable Idle. On The Vehicle, The Valve Is Typically Mounted Near The Intake Manifold Or EGR Assembly And Is Connected Via Vacuum Hoses And An Electrical Connector.
Replacement Procedure (Overview)
Recommended For Experienced Mechanics Or Competent DIYers. Typical Replacement Steps:
- Disconnect The Battery To Avoid Electrical Shorts.
- Locate The Valve Near The Intake Manifold / EGR Unit And Identify Vacuum Hoses And The Electrical Connector.
- Label Or Photograph Hose Routing Before Removal To Ensure Correct Reassembly.
- Disconnect The Electrical Connector And Carefully Remove Vacuum Hoses (Clamps Or Quick Connectors May Be Present).
- Unbolt The Valve From Its Bracket, Replace Any Seals Or O-Rings If Accessible, And Install The New Unit.
- Reconnect Hoses And Connector, Restore Battery, And Clear Any Engine Fault Codes If Present.
- Verify Operation By Observing Swirl Flap Movement, Checking For Vacuum Leaks, And Confirming That Related Fault Codes Do Not Return.
Installation Recommendations
- Use New Vacuum Hoses Or Clamps If Old Ones Are Brittle Or Cracked.
- Replace O-Rings Or Seals To Ensure A Tight Vacuum Seal.
- Check Electrical Connector For Corrosion And Ensure Proper Pin Contact.
- Torque Fasteners To Manufacturer Specifications Where Available; Avoid Over-Tightening Plastic Mounts.
- After Installation, Perform A Functional Check Under Engine Running Conditions And Confirm Absence Of Vacuum Leaks.
Common Failure Causes
The Most Frequent Reasons For Valve Failure Include Soot And Carbon Contamination From The EGR System, Brittle Or Cracked Vacuum Hoses, Electrical Connector Corrosion, And Internal Diaphragm Or Solenoid Wear. Failure Symptoms Often Include Check Engine Light, Loss Of Low-End Torque, Rough Idle, Or Erratic Swirl Flap Behavior. Lifespan Varies With Driving Conditions; Units On High-Mileage Vehicles Or Those With Heavy City Driving And Frequent EGR Use Tend To Fail More Often.
Why Choose This Unit
Having The Correct Valve By Eaton With The Right Reference Numbers Improves Fitment Confidence And Reduces Diagnostic Time. Listing Of Product Codes In The Description Helps Technicians And DIYers Find The Correct Replacement Quickly When Searching By Part Number.
Notes For Buyers
Part Numbers And Model Coverage Shown Above Are Supplied From The Item Listing And Fitment Tags. If The Vehicle Is Among The Listed Models, This Valve Is Commonly Used As A Direct Replacement For The Described Functions. This Item Is Offered As A Used Unit With A Functional Guarantee As Stated In The Original Listing.
