The Exhaust Gas Recirculation (EGR) system is a part of the vehicle emission control. The code P0400 is set when the EGR system flow is less than expected. In most cases, this happens when carbon deposits (soot) clog up the EGR system passages and tubes.
- P0400 – Ford Mercury Vehicles Fix trouble code P0400 – Ford Mercury Vehicles A P0400 code indicates insufficient EGR flow. This could be caused by several things: restricted or carboned up passages, sticking pintle on EGR valve, or a problem with the vacuum supply to the EGR sensors.
How do I fix error P0400?
What repairs can fix the P0400 code?
- Replacing the EGR valve.
- Replacing a broken vacuum line to the EGR valve.
- Replacing an EGR temperature sensor or cleaning the carbon off of it to repair it.
- Cleaning carbon out of EGR tubes to intake manifold.
What can cause a P0400 code?
What are the Possible Causes of the P0400 Code?
- Faulty EGR valve.
- Clogged EGR passage.
- Disconnected or damaged vacuum lines.
- Faulty EGR-related sensor (e.g., EGR temperature sensor, EGR pressure sensor, etc.)
- Issues with the EGR control circuit, such as damaged wires or poor connections.
Where is the EGR valve located on a 2009 Mercury Mariner?
The EGR valve is located in the engine compartment (underneath the hood).
Where is the EGR valve located on a 2010 Ford Escape?
The EGR valve sits on the top of the engine near the rear of the block and looks like a round disk with a small vacuum tube attached to the top center of the disk.
Can I drive with a P0400 code?
It really depends on the cause. If the code P0400 is caused by some minor issue like a faulty EGR temperature sensor and the EGR system works properly, there should be no problem driving.
What is the code P0402?
Diagnostic Trouble Code (DTC) P0402 stands for Exhaust Gas Recirculation “A” Flow Excessive Detected. It indicates that the powertrain control module (PCM) has detected excessive EGR. It is one of the generic diagnostic trouble codes in a number of makes and models that are related to the vehicle’s EGR.
What does exhaust gas recirculation flow mean?
The exhaust gas recirculation (EGR) recirculates small amounts of exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides.
What is EGR a flow?
It simply means that there are not enough gases flowing back into the incoming air to the engine. EGR stands for exhaust gas re-circulation. The car manufacturers decide to create the EGR system so that the burned exhaust gas can easily flow back into the engine, especially when the EGR valve is widely open.
What is code P0404?
When P0404 is triggered, it means that the PCM has been told that the valve is performing in a way that is outside of its specified parameters. More specifically, the PCM has been told that the valve is closed when it should be open, or vice-versa.
What’s the signs of a bad EGR valve?
What are the symptoms of a failing EGR valve?
- Your engine has a rough idle.
- Your car has poor performance.
- You have increased fuel consumption.
- Your car frequently stalls when idling.
- You can smell fuel.
- Your engine management light stays on.
- Your car produces more emissions.
- You hear knocking noises coming from the engine.
What causes EGR valve to explode?
Another problem with an EGR valve is when it gets burned through or “explodes”. This often happens when a clogged-up catalytic converter causes increased pressure in the exhaust manifold.
Where is the EGR valve located on a Ford Escape?
The EGR valve is located in the engine compartment (underneath the hood).
P0400 Exhaust Gas Recirculation Flow Malfunction
The most recent update was on July 7, 2021. Vehicle emission control is accomplished by the use of the Exhaust Gas Recirculation (EGR) system. You may learn more about how the EGR system works by reading about how it feeds a portion of exhaust gases back into the engine’s intake in order to reduce the combustion temperature. When the EGR system flow is less than planned, the code P0400 is set on the computer. Most of the time, this occurs when carbon deposits (soot) block the channels and tubes of the exhaust gas recirculation system.
Although there may be some issues about driveability, such as surging, poor fuel efficiency, and rough idling, it is possible that there are no obvious symptoms at all in certain circumstances. It is possible that the EGR valve is jammed open, resulting in a harsh fluctuating idle or even stalling of the car. While the EGR system fails to function properly in some cars, there may be some visible engine pinging (detonation) during acceleration or when the vehicle is under stress (e.g. when driving uphill).
Is it safe to drive with the code P0400?
It is extremely dependent on the underlying reason. Drivers should have no difficulty if the code P0400 is caused by any small issue such as a malfunctioning exhaust gas temperature sensor and the exhaust gas system is functioning properly. However, if the EGR system is not functioning effectively, the combustion temperature would be elevated, which might result in engine damage over time.
A clogged or limited EGR channel might cause the EGR valve to stick open or close. A clogged or leaky vacuum line for the EGR valve can cause the EGR valve position sensor to malfunction. Manifold absolute pressure (MAP) sensor is affected by a fractured or limited vacuum line. -a catalytic converter that has been blocked – carbon deposits (soot) on the temperature sensor for the exhaust gas aftertreatment (Nissan) -incorrect mass airflow sensor readings (MAF) the temperature sensor circuit for the EGR is open or shorted – incorrectly routed vacuum lines – an electrical fault with the EGR valve control circuit – a problem with the engine computer
How the code P0400 is diagnosed:
The most often encountered issue with the EGR system is carbon buildup, which restricts the flow of EGR. When a carbon buildup is discovered in one portion of the EGR system, it is common for the other ports and channels to get blocked as well. Therefore, the entire EGR system must be checked for limitations and cleaned if necessary in order to resolve the issue. Check the routing of the vacuum lines in accordance with the vacuum line schematic. Examine the electrical system, including the connectors and wires that link to the EGR valves, solenoids, and sensors.
In a Subaru, the BPT valve, along with the other EGR components, must be examined for proper operation.
A check of the exhaust back pressure is required if it is believed that the catalytic converter is blocked. The EGR temperature sensor in Nissan automobiles clogs up often, and it must be thoroughly inspected before it can be repaired.
The EGR valve itself breaks on a regular basis. Cleaning the EGR channels and replacing the EGR valve have been claimed to have resolved the issue by several owners. The EGR valve has been upgraded on a number of different models. Your local dealer will be able to tell you whether or not the EGR valve part number has been changed recently. More information about the EGR valve may be found here. EGR valve that has been clogged P0400 is a code that appears on numerous Nissan vehicles from the 1990s and early 2000s (including the Pathfinder, Altima, Maxima, Frontier, and Quest).
- The EGR temperature sensor, as well as the EGR tubes, ports, and passageways, must be removed and cleaned as part of the repair.
- Mazda automobiles and trucks from the 1990s and early 2000s were susceptible to the code P0400 being triggered by clogged EGR passageways, which were frequently found in the throttle body.
- Similarly, in the 1990s Chevrolet Tracker or its sister vehicle, the Suzuki Sidekick/Vitara, blocked EGR passageways in the intake plenum and the rear side of the throttle plate might result in the code P0400 being displayed.
- In some Mercedes-Benz vehicles from the late 1990s to the early 2000s, a blocked EGR tube was a common cause of the code P0400.
- This thread has a number of photographs that are really detailed.
P0400 Code – What Does It Mean & How To Fix It
This is one of the most often encountered OBD2 error codes. Read the rest of this article to find out what it means, how to solve it, and what additional codes may appear that are associated with it.
This error number indicates a problem with the flow of exhaust gas recirculation. Every automobile is equipped with an emissions control system. Using this technique, a certain amount of exhaust gases is returned to the engine for further combustion. This procedure decreases the temperature of the combustion chamber, which helps the engine to run more smoothly and effectively. When the system detects that the flow of exhaust gases is lower than predicted, the code P0400 will be shown on the screen.
P0400is a generic OBD-II trouble code. It signifies that the engine control module (ECM) discovered a fault with the engine exhaust gas recirculation (EGR) valve.
In this instance, the valve is not delivering the appropriate amount of recirculated exhaust gases when it is instructed to do so. If the valve was functioning correctly, it would allow gases to flow into the intake manifold.
There are a variety of possible explanations for why this code may occur. It is possible that the EGR valve is not opening properly. If there is insufficient vacuum, the valve from the EGR control solenoid will not open, and this is generally the cause of the problem. It’s also possible that the EGR is just incapable of maintaining a vacuum. Another possible explanation is that the EGR temperature sensor is unable to detect a temperature change in the exhaust gas. When the valve is opened, the exhaust gas should be allowed to pass through, lowering the temperature of the combustion chamber.
The presence of clogs in EGR channels is a third factor contributing to this issue.
Left unchecked, this accumulation will obstruct the passage of exhaust gases into the intake manifold, resulting in the failure of the engine to start.
It is rather simple to identify the signs and symptoms of this issue. The check engine light will illuminate, and the code will be stored in the engine control module’s memory. It is possible that an ignition ping or a knock is present when the vehicle is being driven. Most importantly, the engine will fail an emissions test owing to high quantities of NOx in the exhaust, which means it will not run.
Examine the codes and documents contained inside the freeze frame data to determine the source of the problem. After that, clear the engine and ETC codes and put the car through its paces, checking to see whether the problem reappears. Examine the vacuum system visually, paying particular attention to the hoses, wiring, and connections to the EGR valve and control solenoid. Remove the connector and inspect the EGR valve. Determine whether or not suction is produced when the control solenoid is opened when the vehicle is accelerating softly and moderately.
Look for a difference in the engine’s performance and note whether it bogs down while the EGR valve is open.
The process of rectifying a P0400 error code might go wrong in a variety of ways. One method is to replace the EGR valve first, followed by the temperature sensor testing. If there is still carbon buildup on the sensor, replacing the valve will have no effect on alleviating the situation. In a similar vein, if the valve is changed before the EGR pressure transducer is checked, the P0400 problem may still be present. When a faulty pressure transducer is at the root of the problem, just changing the valve will not solve the problem.
How serious is it?
P0400 is a problem with emissions, and it is not a minor one. If the code displays as a result of a faulty EGR valve, failure to address the problem may result in internal engine damage. In this circumstance, the piston and valves are particularly prone to damage.
Furthermore, the failure of the emissions test is caused by the check engine light. Excessive NOx gas emissions are precisely what the emissions test is designed to avoid, therefore this code might be the difference between a car being road ready and not being road ready.
What repairs can fix the code?
Fortunately, there are a few simple fixes that may be performed to resolve P0400 if they are found to be at the root of the problem. The replacement of the EGR valve is a no-brainer. Another option is to replace the vacuum line that connects the EGR valve to the engine. If the temperature sensor is the source of the problem, it may be necessary to replace it. If it doesn’t need to be replaced, it may only require a thorough cleaning and inspection. It is necessary to remove the carbon buildup in order to heal the damage.
There are a few simple fixes that may be made to P0400 that are effective when the problem is located at its source. The obvious solution is to replace the EGR valve. Replace the damaged vacuum line from the EGR valve, which is an additional option. Depending on the cause, it may be necessary to replace the temperature sensor altogether. Perhaps all that is required is a thorough cleaning rather than replacement. Carbon buildup must be removed before the system can be repaired. In addition, it’s possible that the EGR tubes leading to the intake manifold will need to be thoroughly cleaned.
A code such as P0400 is not something that should be ignored. If left unchecked, it has the potential to cause significant harm to the engine of the car. Fortunately, there is a proven procedure for determining the root cause of a code, and the remedies are well-defined and straightforward.
DOWNLOAD A PDF VERSION OF THIS ARTICLE FOR LATER REFERENCE
Amazon.com: EGR – Exhaust Gas Recirculation Pressure Feedback Sensor – Replaces DPFE15, F77Z9J460AB, F77Z9J460AB, VP8T – Compatible with Ford, Lincoln, Mercury Vehicles – Expedition, Escape, Focus, F-150 : Automotive
verified purchaseReviewed in the United States on January 10, 2020Verified Purchase Unfortunately, there are a large number of these low-cost DPFE sensors available on Amazon right now. On my Expedition, I needed to replace the PDFE15, and I bought this exact model to do so. It was the right size, however it damaged my PCM shortly after. I advise against using these lower-cost sensors because if the one you receive runs at a different voltage, you may receive PCM codes, and in the worst case scenario, the sensor may be bad enough to cause your PCM to fail.
- On May 24, 2021, a review was published in the United States of America.
- After two months, it was time to call it quits.
- Yes, that’s correct.
- This is one of those goods where only the genuine article will do the job, not some low-cost counterfeit.
- Cheryl, who works with customer service, was outstanding!
- On September 26, 2019, a verified purchase was reviewed in the United States.
- I have codes for “low voltage” and “high voltage,” as well as codes for “insufficient flow” and “excessive flow,” all of which are in conflict with one another.
I recommend that you bite the bullet and purchase the pricey part rather than seek for a less priced option.
On April 3, 2019, a reviewer in the United States gave his or her opinion.
This appears to be of high quality, and I am hopeful that it will last.
Excellent value for money, with quick delivery.
It was just for a week, though.
I measured the output voltage, which was 5.00 volts even when the engine was not operating.
Verified Purchase on January 8, 2020 in the United States of America This was purchased as a preventative maintenance item (the vehicle was working OK, although it had been 20 years and 210,000 miles).
It was replaced with a generic brand, and everything is working fine today.
On October 13, 2019, a reviewer in the United States expressed satisfaction with their purchase.
I purchased this in order to rectify a P0401 code.
Then there’s a P1400 code.
Spend a little more money and get a Motorcraft replacement.
It resolved the issue, and the check engine light was turned off.
I had it replaced, and I haven’t been able to see the light since.
On May 4, 2021, Dj Al posted a blog entry.
This was the eighth stage in a series of eight steps to repair a YouTube video that I saw.
The photographs in this review On August 27, 2020, the United States will conduct a review.
Purchase that has been verified However, I am still trying to figure out how to solve the third code on my vehicle. The good news is that my motor’s running performance has not altered as a result of using this method to clear the codes.
Mercury Mariner EGR Valve
Your Mercury Mariner will be relieved to learn that the quest for the appropriate EGR Valve goods you’ve been looking for is finally done! Advance Auto Parts has 13 different EGR Valve for your vehicle, all of which are available for delivery or in-store pick up at your convenience. The greatest thing is that our Mercury Mariner EGR Valve items are reasonably priced, starting at $49.99. When it comes to your Mercury Mariner, you want components and accessories from only the most reputable manufacturers.
Carquest and Carquest Premium are two of our most popular EGR Valve product names.
We also provide reviews of our OEM and aftermarket EGR Valve items to assist you make an informed decision while shopping with us.
You may shop online and have your purchases delivered to your doorstep at the greatest possible price and quality.
FAQs forMercury Mariner EGR Valve Products
The EGR system module (ESM) is one of Ford’s most recent EGR systems for gasoline engines, and it is one of the most advanced. It combines the functions of an EGR valve, an EVR, a MAP sensor, and a DPFE sensor into a single unit. Despite the fact that the DPFE sensor on an ESM is referred to as “DPFE” by the scan tool and wiring schematics, it is not the same as the classic DPFE sensor that was utilized on the previous EGR system. It’s actually two distinct MAP sensors working together. Figure 1 shows a diagram of a The EGR system module (ESM) is one of Ford’s most recent EGR systems for gasoline engines, and it is one of the most advanced.
- Take a look at Figure 1.
- Despite the fact that the DPFE sensor on an ESM is referred to as “DPFE” by the scan tool and wiring schematics, it is not the same as the classic DPFE sensor that was utilized on the previous EGR system.
- It is necessary to employ one MAP sensor to detect the amount of exhaust gas flowing behind the EGR valve seat, but before the flow restrictor integrated into the EGR base gasket.
- The MAP sensor, which is responsible for sensing manifold pressure, has a role that is significantly more complex than just assisting in the calculation of EGR flow.
- While this is true, it does not imply that BARO is only derived from the MAP sensor.
When the Ford PCM is operating at 3/4 or greater throttle, it continues to use the MAF to update the BARO. At KOEO, however, the BARO will be modified to accommodate the MAP sensor located in the engine management system (ESM).
Fig. 2: A diagrammatic representation of a diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation The exhaust gas recirculation (EGR) system on a 4.6L Ford engine is a plenum dump type.
- Take a look at Figure 2.
- All of this may be accomplished in a single convenient test.
- Then, under your scanner’s bidirectional controls menu, pick the EVR and set the EGR to 100 percent to complete the process (if you are not using a scan tool, ground the EVR solenoid).
- As part of this process, we are evaluating the EVR, EGR, the vacuum to and from the EVR, the DPFE sensor, and the orifice inside the EGR supply tube.
- In this particular instance, the EGR valve did open, and the DPFE registered a little amount of flow.
- Take a look at Figure 2.
- This indicates that the EGR is limited.
- The DPFE may be malfunctioning, or the opening in the EGR supply tube may be missing, in which case the engine may have stopped or stumbled badly yet there was no change in the DPFE.
- A free-flowing exhaust gas recirculation system with a decent aperture in the tube will typically produce a measured vacuum of 5 to 10 inHg in that hose.
- Figure 3: A diagram of the human body Figure 3 shows the throttle body of the car being removed, as well as the EGR ports being cleaned.
Following that, the EGR system was retested in the same manner as it had been before. Take note of the DPFE readings from a clean EGR system, as well as the disturbance in the engine’s operation produced by it.
Fig. 2: A diagrammatic representation of a diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation of the diagrammatic representation 4.6L Ford engines have an exhaust gas recirculation (EGR) system that dumps into the exhaust.
- Figure 2 shows an example.
- Obviously, the next step is to check the DPFE voltage and to do a flow test on the EGR ports, which should be completed immediately.
- The DPFE PID may be found by scanning using your scan tool (you can also use a volt meter on the DPFE signal lead).
- Observe and listen for changes in the DPFE voltage.
- Depending on what happens, the next step will be decided by the outcome.
- Occasionally, the engine would hesitate.
- On the data collection, take note of the DPFE voltages and the little change in the engine RPM.
- It is possible that the EGR has totally blocked up or that the EGR valve has not opened owing to a damaged line, a malfunctioning EVR, or no B+ to EVR if there was no change in the DPFE or engine RPMs discovered.
- When the EGR is fully open, a vacuum gauge can be attached to the upstream DPFE pipe and used to determine whether or not an orifice exists.
- Remember to take into account the PCM’s ability to open the EVR and read the DPFE in your test results, regardless of whether you are using a scan tool or not.
Later, the EGR system was tested in the same manner as it had been previously. Take note of the DPFE readings from a clean EGR system, as well as the disturbance in the engine’s operation produced by the clean system.
EGR Valve Replacement
Even if you’re stuck at home or at the office and can’t get to a repair, needing a mobile EGR valve replacement is not something that should be put off. Because it recirculates the exhaust back into the engine, an EGR valve is a crucial component of a vehicle’s emission system, as it reduces the quantity of nitrogen oxide discharged into the atmosphere while the vehicle is in operation. A automobile that does not have a functioning EGR valve will not fulfill emission requirements, which may cause the car’s pollutant production to grow and the vehicle to fail inspection.
The good news is that this is simple to achieve with Wrench since you can schedule one of our mobile technicians to come to you at your home or place of business at your convenience.
What Is a EGR Valve Replacement?
When you need to replace your EGR valve, you do exactly what the name says. One of our specialists will replace your present problematic EGR valve with a functional one, enabling your vehicle to comply with emissions regulations in the future.
How Is a EGR Valve Replacement Done?
For a professional, replacing the EGR valve is a straightforward procedure. Because the EGR valve is situated in the engine compartment of your car, it is quite easy to get to when necessary. Once the valve has been reached, it is removed and a new one is installed in its place.
Symptoms That Indicate You Need an EGR Valve Replacement
When the engine stalls or makes unusual noises, it is a symptom that the EGR valve is malfunctioning, as it is with most engine problems. You will most likely notice a decrease in your fuel economy because the automobile is coping with the reuse of pollutants for the purpose of powering the engine of the vehicle.
It is critical to have a fully functioning EGR valve in order to ensure that your car runs as effectively as possible. If you don’t have one, your car won’t pass an emissions test.
An EGR valve repair typically costs between $300 and $500, depending on the vehicle’s year of manufacture. The cost of the components and labor might range from $100 to as much as $700 depending on the situation. Contact Wrench right away to receive a free auto repair quote for the replacement of your EGR valve.
Can I Do It Myself?
Although it is feasible to do an EGR valve replacement on your own, it is not suggested unless you are an experienced technician owing to the necessity to get access to the engine chamber.
Safety: Can I Drive Without Doing an EGR Valve Replacement?
You’ll be fine driving without replacing your EGR valve, but the environment and your bank account will not be pleased! EGR valves reduce the quantity of emissions that escape from your automobile, allowing you to get more mileage out of your vehicle. In the long run, scheduling an appointment with Wrench at your residence or place of business for an EGR valve repair will save you money.
MAYASAF EGR Valve EGV575T Exhaust Gas Recirculation Valve for Ford 1997-03 F-150(250)/Mustang/Expedition/Explorer/Windstar, for Mazda B3000, for Mercury Mountaineer/Cougar/Mystique
EGR VALVEM is located in the EGR VALVEM category.
AYASF EGR Valve EGV575T Exhaust Gas Recirculation Valve for Ford 1997-2003 F-150(250)/Mustang/Explorer/Windstar, for Mazda B3000, for Mercury Mountaineer/Cougar/Mystique, for Mazda B3000 Quantity Adding to cart was successful, with 0 item(s) in cart and a subtotal of US$ 0
- Part Fitment is an abbreviation for “part fitment.” Mustang (from 1996 to 2004), Expedition (from 1997 to 2004), and 1998-2000 2002-2003 Explorer (from 1997 to 2003), F-150 (from 1997 to 1999), F-250 (from 1999 to 2000), Contour (from 1997 to 1999), and F-350 (from 1997 to 2003). Ranger, a 1997 model Aerostar was in the air from 2002 to 2003. Mountaineer from 1996 to 1997 Cougar (1999-2000) and Mystique (1999-2000)
- Functions and Strength is a phrase that means “functions and strength.” It allows the intake manifold access to unburned gases or otherwise wasted exhaust gases, which can be used to heat the air/fuel combination through the use of the EGR valve. This improves fuel economy while also assisting in increasing horsepower. Quality Materials: Our EGR valve is constructed of high-quality materials for long-term endurance and high-temperature resistance. A high-quality EGR valve may improve the ease with which a vehicle starts, the speed with which it responds to the throttle, and the overall smoothness with which it runs.
|Product Name||MAYASAF EGR Valve EGV575T Exhaust Gas Recirculation Valve for Ford 1997-03 F-150(250)/Mustang/Expedition/Explorer/Windstar, for Mazda B3000, for Mercury Mountaineer/Cougar/Mystique|
|Weight||0.48 kg = 1.0582 lb = 16.9315 oz|
A leading auto parts producer in the United States, MAYASA provides a comprehensive line of replacement vehicle components. All of the auto-parts we provide are made utilizing the most up-to-date international equipment and cutting-edge technology to ensure that they meet or exceed OEM specifications, allowing you to replace your aged, worn-out, or failed equipment with a direct fit replacement. Making the decision to use MAYASAF will extend the life of your vehicle, whether you are putting it on blocks to do it yourself or saving money by taking your own components to your local mechanic.
MAYASAF EGR Valve Application
- Ford Mustang 1996-2004
- Ford Expedition 1997-2004
- Ford Explorer 1998-2000, 2002-2003
- Ford F-150 1997-2003/ F-250 1997-99
- Ford Contour 1999-2000
- Ford Ranger 1997-99
- Ford Thunderbird 1996-97
- Ford Windstar 1998/ Aerostar 1997
- Mazda B3000 1996
- Mercury Mountaineer 2002-2003/Cougar 1996-97, 99-2000/Mystique 1999-2000
- Mercury Mountaineer 2002-2003/Cougar 1996-97
- Remove the vacuum tube
- Loosen the screw on the EGR tube
- And replace the vacuum tube. Remove the EGR valve from the car by loosening the nut that holds it in place and paying close attention to remove the gasket. In some automobiles, the gasket will become stuck to the cushion and will need to be removed and cleaned
- Remove the old EGR valve and gaskets, install the new EGR valve and gaskets first (do not screw the EGR tube nut), and then tighten the EGR valve fixing nut
- Then replace the old EGR valve and gaskets. Tighten the nut that holds the EGR tube in place
- Connect the vacuum tube to the power source.
Extraction of the vacuum tube; Loosening of the screw on the EGR tube Remove the EGR valve from the car by loosening the nut that holds it in place; be sure to remove the gasket as well; and When the gasket becomes stuck to the cushion in some automobiles, it has to be cleaned; Remove the old EGR valve and gaskets, install the new EGR valve and gaskets first (do not tighten the EGR tube nut), and then tighten the EGR valve fixing nut; then remove the old EGR valve and gaskets and replace them.
Re-tighten the nut that holds the EGR tube in place Ensure that the vacuum tube is properly connected.