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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
Head gasket or not?
If it is confirmed (i.e., no false positive) that exhaust gas is present in the coolant, that means one of three things: the head gasket is leaking, the head has a crack in it (not unusual) or the block is...
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
When I turn ignition off and pull key out, car doesn't shut off. when i can shut it off, next morning battery is dead.
Malfunctions in the EGR (Exhaust Gas Recirculation) system would not affect the ignition system or battery. If the EGR system has a fault, the service to request is EGR system diagnostic/inspection. If your vehicle engine continues to run after the...
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
I am unsure how much replacing a motor mount and a EGR valve would cost on a 2003 Mitsubishi eclipse. Does anyone have an estimate?
Billing question sent to CS for the cost of replacing the engine mounts and the EGR valve on a 2003 Mitsubishi Eclipse with a L4-2.4L engine.
Question
Car won't pass state inspection due to emissions problem..
Yes, a certified mechanic from YourMechanic can test the EGR system on the engine and determine if the problem is the valve, the passageways, or the electronic controls. Once the root cause of the fault is understood, obviously you would...
Question
CODE;EGR LOW FLOW
Typically, on this engine there will be a blockage, consisting of hard packed carbon, in the passageway in the plenum. It can be very difficult to clean out those passageways on the vehicle without removing the aluminum plenum for a...
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
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...
Question
P 0400 error
Diagnostic Trouble Code P0400 can set if the EGR valve is faulty but other causes for code are a break in the vacuum line to the EGR valve, a faulty EGR temperature sensor, or carbon deposits and blockages in the...
Question
New EGR Transducer Leads To Other Issues?
Hi there. Look to see where the EGR (Exhaust Gas Recirculation) is plumed into the engine. If the EGR is plumed into the cylinder number 3 and the EGR has a leak, then the cylinder number 3 will be weak...
Question
Engine light on code P0401
Assuming that the passageways, including any through and within the plenum and intake are truly completely clear, there is likely a problem with other EGR system components. On your vehicle, Diagnostic Trouble Code P0401 involves not just blocked passageways and...
Question
4Runner has no power in the engine.
Check the engine for a vacuum leak and see if the valve on the brake booster is leaking. Also check the EGR (Exhaust Gas Recirculation) is stuck on all the time. A vacuum leak or the EGR being stuck on...
Question
Want to pass emissions testing, but I have a P0400 code for my vehicle. 2000 Nissan Altima
Hi there - the P0400 code you have suggests a problem with the Exhaust Gas Recirculation system of your car. Given your mileage, this malfunction could be a clogged EGR valve or tube, solenoid or leaking exhaust gas tube. I...
Question
Massive hesitation between 1-2 shifting and nearly dies occassionally at stop.
Hi there. It seems that the EGR (Exhaust Gas Recirculation) Valve is stuck and not allowing the engine to run good causing the engine to hesitate, especially when shifting. Take the EGR off and clean it. Then put it back...
Question
My check engine light is on and I have a code P0401 in my 2010 Chrysler Town & Country
Hello. Typically when you get this code it is because you have low flow in the EGR system. If the EGR valve is good and if the tube is clear then you either have a clog in the intake manifold...
Question
2009 Ford Escape has a code P0400 even after EGR valve replacement
If your test results for KD5 and KD7 are accurate, there is a short between the PCM and EGR stepper motor. Your readings indicate both a short to ground and power, so my guess is that the four wires inside...
Question
I'm am having issues with my truck when I get on the freeway. I can't go past 40 mph on the freeway.
Hi there. The EGR (exhaust gas reciculation) Valve needs to removed and cleaned out. If the engine continues to not drive faster than 40 mph, then I recommend replacing the EGR valve. If you need further assistance with your vehicle...

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