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EGR (Exhaust Gas Recirculation)

Related articles

How to Replace an Exhaust Gas Recirculation (EGR) Control Solenoid
Exhaust gas recirculation (EGR) systems are controlled by the EGR control solenoid, which is controlled by the powertrain control module (PCM).
How to Replace an Exhaust Gas Recirculation (EGR) Pressure Feedback Sensor
Exhaust gas recirculation (EGR) systems use a pressure feedback sensor to tell the powertrain control module (PCM) how much exhaust gas is flowing.
How to Replace an Exhaust Gas Recirculation (EGR) Valve
The exhaust gas recirculation (EGR) valve can cause drivability problems if it fails and should be replaced to avoid engine performance issues.
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 Replace an Exhaust Gas Recirculation (EGR) Cooler
Exhaust gas recirculation (EGR) coolers lower the temperature of the exhaust gas before it enters the car engine. EGR coolers are mainly for diesel.
How to Replace an Exhaust Gas Recirculation (EGR) Temperature Sensor
Exhaust gas recirculation (EGR) temperature sensors monitor the EGR cooler's operation. One is on the exhaust manifold and one is near the EGR valve.
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

Question
How hard is it to replace the EGR valve on my 2000 Ford Focus
Hi there. If the bolts to the EGR (exhaust gas recirculation) valve are frozen in place by rust, you could put a small blow torch to the bolts and get them cherry red and then try to remove them. If...
Question
PO400 code came up with multiple cylinder misfires. I replaced the EGR solenoid, all the vacuum lines, cleaned the EGR pipe and passage. Still have the same problem.
Hi there. After having the EGR (engine gas recirculation) valve replaced, the vacuum lines replaced, and the tubes cleaned out, then there could be an electrical issue with the EGR system. Check the EGR harness with a digital meter and...
Question
My 96 Camry has a code for the EGR Valve. What is the EGR?
EGR stands for Exhaust Gas Recirculation. The EGR valve is a valve that is placed between the intake and exhaust stream of your car for the purpose of introducing small amounts of exhaust into the intake stream under certain conditions....
Question
Hesitation between 40 & 50 mph.
After scanning the computer for codes to see if there is codes for the transmission or EGR system. If no codes then you should disconnect the EGR vacuum control valve and road test to see if problem of surge continues....
Question
An EGR valve has an error and my engine is stalling out when started.
Hi there. Check the power to the Exhaust Gas Recirculation (EGR) Valve and see if there is a voltage reference. If there is a voltage reference, then back probe the EGR Valve wiring harness plug with the engine running and...
Question
My car doesn't pass emissions because the catalyst system is below threshold, and the exhaust gas recirculalation is insufficient.
Hi there. The Engine Gas Recirculation (EGR) valve could be sticking or full of deposits from the exhaust system. Remove and clean the EGR valve before replacing it to see if the system will begin to operate. The oxygen sensors...
Question
EGR code and Cylinder number 4 misfire detected.
Hi there. The Exhaust Gas Recirculation (EGR) valve may be the wrong one or the cheap design could be not designed for the emissions requirements for U.S. standards. If the EGR is pulling from cylinder number 4 and after replacing...
Question
EGR code, Cylinder 4 misfire code 0304 detected.
Hi there. The Exhaust Gas Recirculation (EGR) valve may be not designed for the emissions requirements for U.S. standards. If the EGR is pulling from cylinder number 4 and after replacing the EGR and the computer detects a misfire, then...
Question
Clogged manifold intake runner bank 1 2005 Mercedes C230 Turbo
Hi - the clogged intake is a long-term "carbon clogging" from the turbocharger/EGR valve operation. The manifold must be removed, disassembled, cleaned and reinstalled. Tedious, and requires moderate DIYr skills. Unfortunately, this is not a service YourMechanic offers at this...
Question
My truck runs for a few seconds then dies
When you have low fuel pressure but recently replaced the fuel pump and relay, the issue is typically vacuum-related or caused by a clogged or worn out fuel injector. The vacuum issue may be related the the EGR valve or...
Question
I just replaced my egr valve and notice while driving for a couple of minutes my Electronic throttle Control light starts flashing
Hello. There are several components that can effect the electronic throttle control system. The issue may pertain to the recent work done, or may be a separate issue all together. The system depends on sensor inputs from all over the...
Question
No power idles like it has a cam. I tested it with a Innova OBD 2 scanner.
The EGR valve may be getting carbon into the valve holding it open. This would cause the rough idle and low power. If the engine is getting excessive carbon in the motor the intake manifold and exhaust manifold may be...
Question
Rough idle and stalling with exhaust popping
The first thing to do is to get rid of the oil type air filter. This oil bath type filter can cause the mass air flow to be contaminated with the oil from the filter you are using. You should...
Question
Car is running crappy sounds like a v8 truck with dual exaust.
If the engine exhaust sounds very loud, there may be a loose or broken component like a cracked manifold or rusted pipe section like on your egr valve. A technician will be able to look over the vehicle listening for...
Question
Check engine light came while driving. Is this a serious problem? car seems to be running fine. 2004 Hyundai SantaFe
Hello - the Enhaust Gas Recirculation - EGR - system reduces emissions by recirculating exhaust gases that are not completely burned back through the engine. This is done in a timed manner under certain conditions. If this system is not...
Question
Service engine light on...car hesitates/stalls after stop
The EGR valve is a small component designed to allow the flow of exhaust gases into the intake manifold in controlled amounts. As such, it's a simple valve that closes and opens as needed. The EGR valve has one single...
Question
EGR valve is closed when I accelerate and it opens when I remove my foot from accelerator. What is wrong with the EGR valve?
Hi there. If you are getting the EGR valve to operate in the opposite times, then check the harness for power and see if the power is on with the engine at idle. Check the voltage and there should be...
Question
Replace fuel pump and battery car won't accelerate in park
This may suggest a clogged or dirty EGR valve. The EGR valve is a small component designed to allow the flow of exhaust gases into the intake manifold in controlled amounts. As such, it's a simple valve that closes and...
Question
Check engine light, EGR.
Hi. The next step to take with this issue is to clean out the passages that EGR valve sits on top of. These passages get clogged up with carbon and causes the EGR valve to look bad to the computer...
Question
Idle in drive then died now won't crank or start
Hi there. Sounds like the engine gas recirculation valve (EGR) is coming on when the engine is at an idle. Check the EGR and see if its plugged in and working. If so, then remove the EGR valve and clean...

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