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EGR (Exhaust Gas Recirculation)

Related articles

Symptoms of a Bad or Failing EGR Vacuum Modulator
Common signs include engine performance issues, the Check Engine Light coming on, and failing an emissions test.
Symptoms of a Bad or Failing EGR Cooler
Common signs include engine overheating, exhaust leaking, and the Check Engine Light coming on.
How Long Does an EGR Cooler Last?
Within your vehicle is a part called the EGR cooler. EGR stands for Exhaust Gas Recirculation. This cooler is responsible for taking care of the exhaust gases once they leave the engine....
How Long Does an EVP Shut Off Solenoid Last?
The EVP shut off solenoid is the EGR (exhaust gas recirculation) valve position sensor. With that said, it has a fairly important job to perform that will help ensure your...
How Long Does an EVP Position Sensor Last?
An integral part of your vehicle's EGR (exhaust gas recirculation) system is the EVP position sensor. This sensor has the important job of figuring out where the gate is positioned in...
How to Replace an Exhaust Gas Recirculation (EGR) Vacuum Modulator
The EGR vacuum modulator meters the EGR valve in some car systems. Some signs of a failing EGR vacuum modulator include stalling and a rough idle.
How Long Does an Exhaust Pressure Control Valve Last?
The exhaust pressure control valve is used in diesel vehicles as part of its EGR (exhaust gas recirculation) system. The EGR system is meant to bring down the amount of...
How to Clean an EGR Valve
The EGR valve is the heart of the emissions system on an engine. EGR is an acronym for Exhaust Gas Recirculation, and that is exactly what it does. This wonderful...
How to Replace an EVP Shut Off Solenoid
An EGR valve is essential to the EGR system in your vehicle. For this valve to work, the EVP shut off solenoid must monitor its position and function.
How to Replace an EVP Position Sensor
The EGR valve is monitored by a valve position sensor. This sensor helps your car's EGR system to run more efficiently and better control emissions.
How to Replace an Exhaust Gas Recirculation (EGR) Tube
The EGR valve is connected to an EGR pipe, which helps distribute molecules through your vehicle’s EGR system. A bad pipe leads to performance issues.
How to Buy a Good Quality Exhaust Gas Recirculation (EGR) Tube
Exhaust gas recirculation tubes (EGR tubes) are responsible for moving a very small amount of gas from the exhaust manifold to the intake manifold in order to help reduce emissions of nitrous...
How to Buy a Good Quality Exhaust Gas Recirculation (EGR) Valve
The exhaust gas recirculation valve (EGR valve) serves to dramatically reduce the emissions that are key contributors to pollution in the air. While EGR systems were not routinely added to engines until...

Related questions

P0405 EGR Sensor A Circuit Low
Hello and thank you for your question. With having 200,000 miles on the engine, I recommend replacing the EGR and not just cleaning it. The plunger is probably has too much carbon build up making the EGR stick open when...
Noises during startup, cannot restart - 1998 Isuzu Amigo
Hello. From the symptoms you describe, it would appear that your vehicle is experiencing some sort of mechanical issue. If you noticed a reduction in power along with the sound, then it may be possible that there is an internal...
Car reluctant to accelerate as if not getting power
Hi, thanks for writing in. Let me start by explaining one of the strong possibilities concerning the misfiring. When the EGR valve malfunctions, the engine cylinders can combust prematurely. The computer will then detect the issue and label it as...
Engine running rough and light now on.
Yes you could have bad fuel in the system if that is the case. However, you may want to check and make sure your fuel filter is good, and make sure there are no extra leaks in the the air...
P2098, P0153
Hello. The codes you are receiving have more to do with the oxygen sensor that is after the catalytic converter and not the one that is pre-cat. I usually install a scan tool and monitor the output of the secondary...
My 2004 Ford Explorer has the service engine light on and possible issue EGR
The two components work together to more smoothly recycle partially burned exhaust gases - rather than just dump them into the exhaust and the catalytic converter. The exhaust gas recirculation valve is the actual valve assembly which re-directs exhaust gases,...
Does not go into gear. 2002 Dodge Stratus
Hello. Code P0403 is the trouble code for an issue with the vehicle's EGR circuit. The EGR, short for exhaust gas re circulation, circuit is an emissions system that is responsible for recirculating exhaust gases in order to reduce N0x...
Truck is dying when in drive. 1999 Ford F-150
Hello. If this issue it only occurring at idle, then it is either due to a vacuum leak in the engine or more commonly a failing idle air control valve. This is a common failure on this vehicle. I...
I cleaned the EGR valve but I'm not sure if it is working now
Yes, if you pressed on the diaphragm and it stalled the engine that means that exhaust gases were flowing through the EGR valve as intended. A good way to test the EGR valve in its entirety is to use a...
Bad EGR code
Hello and thanks for your question. It seems that there may be excessive carbon build-up on the cylinders inside your engine. I recommend getting a carbon cleaner for your engine, like engine cleaner or sea foam. It is best to...
Car won't go past 30 mph
Hi. It sounds like the ports to the EGR valve are clogged up with a lot of carbon causing back pressure in the engine and that chokes the engine causing the car only to go 30mph. When the EGR valve...
EGG code p0400, multiple cylinder misfire, removed and cleaned egr and pipe with no change
Hi there. The P0400 EGR (exhaust gas recirculation) valve code may not be a valve not working. This code description is a EGR flow malfunction. The fact that your vehicle has multiple cylinder misfires leads me to believe the valve...
Drops in power and dies at stops
Hello there, loss of power and dying when stopped are common issues with your 2006 Chevrolet Impala. The most common causes are are the fuel pump, clogged EGR, vacuum leak, fuel filter, oxygen sensor, wiring harness fault, or an exhaust...
Check engine light for EGR valve
Hi there, thanks for writing in. Typically when a problem is recognized by the on board computer (ECM), an error code will be triggered that illuminates the check engine light initially. However, this error code is also stored in the...
Runs fine when cold- after 1/2 hour or so , spits and sputters then quits
Hi and thanks for contacting YourMechanic. To me this symptom sounds like three different problems that could be happening. One problem is that the Engine Gas Recirculation valve (EGR valve) could be stuck open. This will cause the exhaust...
Egr solenoid
Hi there. Once these parts are replaced you need to do the test procedure with the same plug otherwise the light will remain on. If you did the reset then the circuit will need to be tested. It can also...
Car keeps dying
There are usually two different issues that cause the engine to stall or reduce RPM in situations like this. The first thing I'd look at is the idle control valve or sensors that monitor the fuel system. The second item...
My car shows the Check Engine Light and DPF lights and coil light on the dashboard. What action should I take?
Hi. The EGR valve needs to be replaced and the passages to the EGR need to be cleaned. The EGR location is very tricky to get to so you may need a professional technician (such as one from YourMechanic) who...
Sometimes my car runs loud from the front of the engine
From what you describe it would appear that an exhaust leak may be affecting your engine's performance. If the leak appears to come and go, then the first thing I would do is look at the vehicle's EGR valve and...
Egrcode multiple cylinders misfire
The most likely issue in this situation is with the EGR valve. Problems with the EGR system can lead to misfires. The exact problem with the EGR will need to be diagnosed with some further testing. The EGR valve itself...

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