How much does an EGR valve cost?
The average cost for EGR valve replacement is between $314 and $399. Labor costs are estimated between $77 and $97 while parts are priced between $238 and $302. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.
Why do you need an EGR valve on your car?
The EGR valve is vital to your car’s emission controls. Exhaust gas recirculation helps to keep huge amounts of unburned fuel from being released into the atmosphere. This unburned fuel is thought to be a huge contributor to greenhouse gas build-up. That’s why an EGR system became mandatory on all new vehicles some time ago.
What does 0.71v mean on the EGR?
0.71V means a closed EGR valve. 4.01V means an open EGR valve. Everything between 0.71 and 4.01 is the position of the EGR valve which is returning to the ECU. Checking the EGR for electronic failure:
How to check exhaust gas recirculation EGR system?
Unbolt the EGR motor and check if the valve is moving freely by turning the half gear by hand. In my case in the ECU was stored the P0408 error code. Until I checked the signals as I wrote I realized does the signal between pin 3 and pin 5 are low which was around 0.59V. This triggered the DTC error P0408.
What are the pros and cons of EGR?
Cons of an EGR Valve. When the EGR valve goes bad, it must be replaced. Unlike some emissions control devices that can go bad without affecting the drivability of the car or truck, a bad EGR valve can really affect the engine’s performance or even cause it to stop running altogether.
How serious is an EGR valve?
If the EGR valve is stuck open, it will essentially cause a vacuum leak, leading to inefficient combustion, rough idling, hesitation, and sometimes stalling in extreme cases. This is because the car cannot combust on carbon dioxide from the tailpipe — it needs atmospheric oxygen.
What are the symptoms of a leaking EGR valve?
A faulty EGR valve or related component may leave the valve in either the stuck open or stuck closed position. The symptoms of a stuck open EGR valve are a rough idle with a lean air fuel mixture. The engine has a major vacuum leak. The symptoms of a stuck closed EGR valve are pre-ignition, ping, and knock.
Where is my EGR valve?
The EGR valve is located in the engine compartment (underneath the hood). Most engines require exhaust gas recirculation to meet emissions standards.
How do you remove EGR valve?
Loosen the bolts to remove the EGR valve and gasket. Check the hoses and gasket for wear, to replace or reuse. Spray the valve and hoses with carburetor cleaner, using a brush to clean off the carbon buildup out of any hoses and small hole with the pintle.