How to Repair a Broken EGR Valve.
- Disconnect battery.
- Remove sensors or clips.
- Loosen bolts holding the EGR valve.
- Use a EGR or Carburetor Cleaner to spray the valve and hoses.
- Reconnect the battery.
How difficult is it to replace the EGR valve?
How hard is it to change an EGR valve? In most models, replacing an exhaust gas recirculation (EGR) valve is not difficult. You can do it in your garage in about an hour or two, depending on your particular system, using some common tools and a good solvent like carburetor cleaner.
Should I clean or replace EGR valve?
What to use to clean EGR valve
- Safety first: Goggles for your eyes and acid-resistant gloves for your hands
- EGR valve or carburetor cleaner
- New EGR valve gasket, if necessary
- Repair manual, if necessary
- Pipe cleaning wire brush
- Ratchet
- Ratchet extension
- Socket set
- Adjustable wrench
- Dull scraper
How much does it cost to clean an EGR valve?
The advantages are:-
- Our Mobile Carbon Cleaning Technicians come to you
- Potentially no expensive parts
- No disassembly is required, therefore no expensive labour
- Completed in an average of 45-60 minutes so no requirement to leave your vehicle with a garage for days on end
- We are fully insured to complete this service at the roadside or wherever your vehicle is located
How to clean a dirty EGR valve?
- Locate the EGR valve.
- Remove the valve and the other components that might get in the way.
- Cleaning the EGR valve by spraying an EGR valve cleaner and using a pipe cleaning brush and dull scraper.
- Soaking the valve in a cleaning solution overnight if it is hard to clean. ...
- Putting the EGR back to its original location.
Can a EGR valve be cleaned?
To clean the valve, wear an acid-resistant pair of gloves. Put on safety glasses, too, as the carbon deposits could become airborne in the process. Spray the EGR valve cleaner onto the carbon deposits. Remove the carbon buildup with the use of a pipe cleaning brush and dull scraper.
How do I fix a leaky EGR valve?
1:163:10How to Replace Bad EGR Valve in Your Car - YouTubeYouTubeStart of suggested clipEnd of suggested clipRight here we just have to take the two bolts off and hold it in place so you get a wrench. And putMoreRight here we just have to take the two bolts off and hold it in place so you get a wrench. And put it on the bolt. And take them both off then we unplug the vacuum line that comes out of the hole.
What are the symptoms of a failing 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.
How do you refurbish an EGR valve?
3:096:42How to FIX / clean / REFURBISH your EGR Valve PO401 - YouTubeYouTubeStart of suggested clipEnd of suggested clipThat right you want to submerge the parts that are corroded with carbon like that and then afterMoreThat right you want to submerge the parts that are corroded with carbon like that and then after that you let sit for a while maybe a day don't have any open flames near or anything.
Can I just unplug my EGR valve?
Premium Member. If you drive the car long enough to reach full operating temp - THEN pull over unplug the EGR it will not give you a code until the next time you start the car. This is a good way to test the EGR because the with and without comparison is immediate.
Can you clean EGR valve without taking off?
0:121:42How To Clean A EGR Valve With Spray Without Removing It - YouTubeYouTubeStart of suggested clipEnd of suggested clipSimply undo it take the can and then trade it in in small intervals. And when the engine recoveredMoreSimply undo it take the can and then trade it in in small intervals. And when the engine recovered spray another play the PIPA straight too much you will have to make the empty not right.
How much does it cost to fix EGR valve?
The average cost of replacing the EGR valve in your vehicle is anywhere from $250 to $350 on average, depending on your vehicle's year, make, and model as well as the type of system it has. The cost of parts will be somewhere around $190 to $270, while the cost of labor will be anywhere from $60 to $80.
How do you check if EGR valve is stuck open?
Open Position: Rough idling and problems with acceleration are the two most common indicators that the EGR valve is stuck open. The truck might also stall excessively. When the EGR valve is stuck open, all of the exhaust gas cycle back into the chamber, meaning there's not enough oxygen for a combustion to take place.
Is it worth cleaning EGR valve?
Cleaning your EGR valve will solve your car's engine performance issues related to any clogging or system passages problem with the valve. Even more importantly, it'll prevent serious engine damage and expensive repairs.
Does WD 40 clean EGR?
If you just want something to clean your EGR valves that will do the job well without hassle, we recommend going with the WD-40 specialist cleaner. WD-40 products are widely available, and trustworthy, and you will be able to get your EGR valves cleaned effectively using it.
Can EGR valves be reconditioned?
Proper reconditioning can be done only if worn or damaged components are replaced with new components in OEM quality – cleaning and painting does not suffice. Trying to save costs can end up being much more expensive. We recommend using only new EGR valves.
Can I use throttle body cleaner on EGR valve?
A good dousing with throttle body cleaner may be enough to restore your EGR valve to near-mint condition, transforming a harsh idle into a soothing hum.
Will fuel injector cleaner help EGR valve?
Some fuel system cleaners contain polybutene amine (PBA) chemistry and can remove deposits from EGR valve.
How much does it cost to replace the EGR valve?
The average cost of replacing the EGR valve in your vehicle is anywhere from $250 to $350 on average, depending on your vehicle's year, make, and model as well as the type of system it has. The cost of parts will be somewhere around $190 to $270, while the cost of labor will be anywhere from $60 to $80.
Does EGR damage engine?
So not only does EGR hamper performance by coating and then shrinking the size of the intake path, but it is also hard on engine oil, and even degrades the coolant that is used to cool off the exhaust gases passing through the EGR cooler.
Can I use throttle body cleaner to clean EGR valve?
A good dousing with throttle body cleaner may be enough to restore your EGR valve to near-mint condition, transforming a harsh idle into a soothing hum.
How does an EGR valve work?
EGR valves function by recirculating small amounts of exhaust back into the combustion chambers. Since exhaust is mostly carbon dioxide, it doesn't burn. This reduces combustion temperature and NOx emissions. When an EGR valve malfunctions, carbon dioxide is reintroduced at the wrong time or in the wrong amounts, and engine performance suffers.
What does EGR valve mean?
EGR stands for exhaust gas recirculation, and was one of the earliest forms of emission control on vehicles. As engine combustion temperatures approach 2500 degrees, formation of smog-producing nitrogen oxides (NOx) increases. EGR valves function by recirculating small amounts of exhaust back into the combustion chambers.
How to tell if EGR valve is stuck?
Signs of an EGR valve malfunctioning include: Check engine light (diagnostic codes usually in the low P0400s) Reduced power and fuel economy. Pinging or knocking sounds. Rough idle.
Why is my engine trouble code stored?
The code might be be stored due to another problem that's causing that sensor to send a bad reading, so before you start replacing parts, make sure of what the real problem is.
How to clean EGR valve?
It depends on how far you want to go and how much time you have. First, soak the EGR valve in a bowl filled with carb cleaner. Carb cleaner smells horrible and is nasty stuff, so soak it outside or in a very well-ventilated area. Let it soak overnight if you can. If this isn't possible, skip to the next step. Please note: If your EGR valve has electronic connections on it, do not submerge the electrical portion in cleaner!
What does it mean when you hear something moving back and forth?
If you hear something moving back and forth inside, that's the diaphragm—which means there is a good chance that your EGR valve is still good and just needs to be cleaned to return to normal function. If you don't hear anything, your EGR valve might be stuck or it might be bad.
What happens if your car is running poorly?
If your car is running poorly, you may be having problems with your exhaust gas recirculation valve, or EGR. While you can't test your EGR valve function from home, you can clean it there, a simple task that effectively acts as a repair.
Can you reinstall an EGR valve?
Now you can reinstall your clean EGR valve. Don't forget to reattach your vacuum hose and your electrical connections, if applicable. If this process worked, great! If you are still experiencing problems you feel can be traced to the EGR valve, you may have to go ahead and replace it.
Is exhaust gas recirculation valve easy to clean?
There's nothing like turning what could be a very expensive (or at least moderately costly) repair into a home repair victory, and the exhaust gas recirculation valve is easy to access and easy to clean as long as you take a few precautions.
Can you reuse a gasket?
Remove the Gasket. If your gasket looks okay and isn't torn, frayed, or disintegrated, you can reuse it. If it's questionable, install a new one. We recommend installing a new gasket with any repair.
How to install EGR valve?
However, you need to make sure the valve is properly seated and tighten the bolts to the proper torque. Position the new valve against the pipe and thread the pipe's nut by hand, if yours comes equipped with it.
What is an EGR valve?
An exhaust gas recirculation (EGR) valve, when it is working correctly, recirculates exhaust gases through the engine to reduce emissions of oxides of nitrogen (NO x ). Usually, EGR valves don't totally fail. But stopped-up passages and ports will greatly affect valve and engine operation.
How long does it take to replace an EGR valve?
In most models, replacing an exhaust gas recirculation (EGR) valve is not difficult. You can do it in your garage in about an hour or two, depending on your particular system, using some common tools and a good solvent like carburetor cleaner.
Where is the EGR valve located?
The EGR valve is usually located around the top or backside of the engine, and to one side of the cylinder head, close to the intake manifold, or on the intake itself. Depending on your particular model, the EGR valve may connect to a pipe that goes to the exhaust manifold.
How many hoses do you need to disconnect to remove EGR?
Different types of EGR systems are in use today. So you may need to disconnect more than one hose, electrical connector, or sensor to remove the EGR in your vehicle. If necessary, consult your vehicle repair manual.
Why remove carbon buildup from valves?
The main causes of carbon buildup are driving mostly short trips or within the city, and an increase in engine oil consumption due to wear and tear.
Do you need to lubricate EGR bolts?
You may need to apply lubricant to the bolts, if they seem pretty tight. The bolts are continually exposed to heat and rust, which can make them difficult to remove. If your valve is attached to a pipe, finish disconnecting the valve from the pipe now. Remove the EGR valve and valve gasket from its mounting.
How to remove a clogged EGR valve?
The only way to remove the clog is to run a drill or snake down the passage and vacuum out the crusty carbon. On older cars operated by engine vacuum, the EGR valve diaphragm can deteriorate and leak, causing a rough idle and a check engine light. In that case, the valve should be replaced.
Why is the EGR valve important?
So the EGR valve is a critical component of your car’s emission system to reduce smog and lower combustion temperature.
How does an EGR valve reduce pollution?
An exhaust gas recirculation EGR valve reduces pollution by sending a portion of the exhaust gasses back into the engine when the car is cruising at higher speeds. Engines need less fuel when they’re cruising. Since the engine cylinder is a fixed size, it must be filled with either a full dose of air and fuel, or a partial dose ...
What happens when a spark plug is not in EGR flow?
Without EGR flow, the combustion chamber runs hot causing the fuel to ignite before the spark plug fires. The early ignition causes the piston to push backwards against the crankshaft while it still pushing the piston up. The sound you hear is metal crashing against metal.
Why add exhaust gas to a car?
Exhaust gas is the perfect substance to add because it’s inert. In addition to saving fuel when cruising, the addition of exhaust gas and lower dose of air/fuel helps to reduce combustion temperatures. High combustion temperatures cause the Nitrogen in the air to combine with oxygen to form Oxides of Nitrogen, a major component of smog.
Is it cheaper to remove a valve or replace it?
But you often wind up paying more due to the labor to clean the valve. In most cases, it’s cheaper over the long run to remove and replace the valve.
Do you need to replace an EGR valve?
Or, the EGR position sensor can fail, causing a check engine light. If your car is running fine at idle and you don’ t have a check engine light, there’s no need to replace or clean an EGR valve.
What happens when the EGR valve fails?
For instance, this will happen if the EGR valve fails to close completely as the engine idles, or fails to open when engine speed increases.
How to find EGR valve?
Locate the EGR valve. Look for a round, thick, metal disc about three inches in diameter. In most cases, you'll find it around the top area and to one side of the engine. You may need to look between and under some components on your vehicle. Also, you should see a thin, vacuum line connected to the top of the valve.
What is the purpose of EGR valve?
The EGR system in your vehicle uses the EGR valve to introduce measured amounts of exhaust gases back into the combustion chambers. These gases lower combustion temperatures. And lower combustion temperatures mean lower emission of harmful NOx (oxides of nitrogen) gases.
Can you use EGR valve cleaner?
Cleaning the Valve: After removing the valve, use an EGR valve cleaner, if possible. However, you can use carburetor cleaner or solvent as well. But don't let the harsh cleaner to reach electronic components attached to the valve or you'll destroy it.
Can you test an EGR valve with a vacuum pump?
Still, you can follow this guide along with the procedure described in your vehicle manual to test your EGR valve, if necessary. To apply one of the tests to the EGR valve, you'll need a vacuum pump, which you can borrow-rent from a local auto parts store, if you don't have one.
Do valve diaphragms leak?
Valve diaphragms suffer wear and tear as well. Eventually, they may start leaking exhaust gases . However, hidden from view inside the valve case, you need to do a specific and simple test to know the condition of the diaphragm.
EGR Valve Replacement
How to Replace It
Tools and Other Items You'll Need
I. Locating The Valve
II. Removing The EGR Valve
- Different types of EGR systems are in use today. So you may need to disconnect more than one hose, electrical connector, or sensor to remove the EGR in your vehicle. If necessary, consult your vehicle repair manual. 1. Make sure the engine is cool and disconnect the negative (black) battery terminal. Depending on your vehicle model, you may need to...
III. Cleaning The Valve, Passages, and Ports
IV. Installing The EGR Valve
Questions & Answers