#2. If your EGR valve is stuck in a closed position, the temperature inside the combustion chamber will be too high. The valve won't be able to open and close properly, meaning the emissions will increase. Most recently the EGR tubing which connects to the rear of hte exhaust manifolds has rusted off. Cars starts fine, idling is fine, but smokes heavily under acceleration up to 2000rpm when the turbo kicks in, then the smoke disappears. If you can find a heavy duty intake manifold your better off using that. These gases will take up space, therefore limiting the amount of air that needs to enter in order to achieve optimal engine performance. Verify all the wires in the circuit are properly connected. The most common issues with the 14L Series 60 Detroit are-1. 2. Your car has poor performance Poor performance can be caused when the valve is open or closed. 1) EGR valve stuck open at the wrong times 2) Turbo undepressure 3) Fuel problems resulting in incomplete combustion (impurities/contamination). as you describe though, lack of power and heavy smoke is a cause of a few things, plugged air filter, very dirty mass air flow sensor, exhaust gas recirc valve failing allowing uncommanded exhaust to enter intake, under boost, this open egr will also dump boost pressure to the exhaust, hense loss of power and more black smoke. And what's more, perhaps if it's stuck open then I'd have thought a dashboard light would be manifest - you know, emissions or engine management. It should be free beings that it is a emissions recall. If I answer yes will this in someway bypass my EGR stuck open problem? I also would have the ecm updated. If the EGR system is clogged up, or the valve is stuck closed, the combustion temperature increases. EGR Valve Stuck Closed There is an open emissions recall for this truck. im not sure where you can get it from but we use it at my Oct 6, 2016. Often times what happens with these is over time the pintle shaft gets soot creeping up inside the actuator portion of the valve and the little mechanism gets sticky. The Check Engine light might also come on in either case. get some throttlebody/carb/intake manifold cleaner and clean it out good. Sounds to me your turbo is just leaking oil and you exhaust is burning it. lastly, exhaust restrictions such as a clogged catalytic converter, or pinched exhaust pipe section can cause this. In the case of clogged EGR systems or valves that are stuck open, the combustion temperature increases. Over possessing fuel will cause the catalytic converter to overheat and break apart . Don't get the fingerstick if you don't want to mess with the MAF sensor wiring. Black smoke is nearly always unburnt or partially unburnt fuel. if so, you gotta bad cat. If you turn the EGR to blank it off, you have to have a working EGR so it sends the correct signal back to the ECU or you get a fault code, usually PO0400 EGR malfunction. The Xcal2 may not even pick up the code. May 27, 2009. Clicking this will make more experts see the question and we will remind you when it gets answered. vgt control is governed via info recieved by the maf on more recent programing or by the ebp on old programing..either way faulty egr opp. Detroit engine 60 series 14-liter problems. in my experience its a great idea to block off an egr valve. Surely EGR shouldn't be the problem again. The orange you can see is the edge of filter element. Thanks, Doug L From a stop it is very slow to get going until the turbo kicks in, then it goes. Start the engine and allow it to idle for 10 minutes. A bad EGR valve is likely to have issues with the engine's performance. Have you tried full throttle with egr valve unplugged to see if it cures the black smoke. Command the turbocharger vane position control solenoid ON to 100 percent and inspect for leaks around the EGR valve gaskets. . The EGR valve can become stuck in the "open" or "closed" position due to the buildup of soot particles, carbon deposits, and dirt in the fuel. Welding closed fixes the stuck open issue. If you remove the EGR valve exaust will be free to enter the intake manifold. Common EGR valve problems I think its normal for the egr to open as soon as the engine is running if the coolant temperature is 13c or above. that code is egr temperature-data valid but above normal operating range, you could have a bad egr temp sensor, stuck open egr valve, i'd also check the egr massflow sensor and sensing ports for plugging, and like i tell everyone, black smoke is caused by either not enough air. Cracked exhaust manifold . I have a SCT tuner. Because, an open (EGR) valve causes, exhaust emissions to . black smoke when accelerating. Diesel burns slowly compared to petrol. I would clear the codes & plug the egr back in & test drive to see if any codes come back. If you have navcal you can update it or take it to a dealer & have them update the ecm. If you experience loss of power and loads of heavy black smoke, the EGR valve may be stuck. There is an EGR function diagnostic that runs at certain times. A vehicle will release black smoke due to excess fuel running into the engine, thereby leading to incomplete combustion. In a diesel engine, a bad EGR valve is one of the causes of a black smoke. Once it starts, it runs terrible and misfires real bad. Symptoms of a bad EGR valve include: rough idling or stalling a smell of fuel increased fuel consumption pinging, tapping, or knocking sounds failed smog test Check Engine Light on Another symptom you may not see often is a misfire. Can't see how a dodgy EGR would cause blue smoke. If you want to bypass egr and fool the computer take it off, weld the valve closed, disconnect the control rod from the motor. Black smoke from the tailpipe. unplug the upstream o2 and see if power increases. Symptoms of a stuck open EGR valve 1. I would think this would effect the performance of the car as technically you have an air leak in the system with that gap. This could be as simple as the EGR (exhaust gas recycling) valve stuck open. Read more: EGR valve: problems. Grimbo. Whereas urban driving conditions can allow these . To take it off. It may also contribute to a smell of . 6. 1. If you blank off the EGR, you would have to have the ECU reprogrammed to account for this (like you do for the 2.0). Rjpierma24 Location Offline Senior Member Reputation: 5. Answer: Check the electrical connection to the EGR valve sensor. Especially one might observe black or grey smoke coming out of the exhaust pipe. This may cause pinging (detonation), as well as surging on light acceleration. R Russell Keys 1/2 ton status Joined Mar 16, 2000 Posts 253 Reaction score 0 Location Huntsville, TX Sep 19, 2001 The best way is using a tuner such as quadzilla, PPE, EFI live and get a EGR block off plate. 2. in park at idle, revving the engine through the rpm range will show roughly a 10% discrepancy between the desired and actual fuel pressures, the actual being lower. When the EGR valve goes bad these gasses have nowhere to go but out through the exhaust, and they appear as black smoke. You will also need to unbolt and thoroughly clean the egr valve so the valves open close close properly (it will be obvous when you get it out and clean . Vacuum supply issues at the (Vacuum operated EGR valve) Electrical problems with the EGR valve control circuit . Aug 16, 2008. We know that it is held by three screws but it is a $$%%$! Since there's a feedback potentiometer (resistor) monitoring its position. The Exhaust Gas Recirculation (EGR) valve is an anti-pollution device, aimed primarily at reducing the amount of nitrogen oxide (NOx) spewing out of the vehicle's exhaust pipe. The reason for this is because when your EGR valve is faulty, it restricts the airflow to the engine. . In a diesel engine, a bad EGR valve is one of the causes of a black smoke. The engine sounded like it was ready to explode from exhaust pressure. Disconnecting the MAF will cause a MAF DTC, but if it is faulty, the car will drive better, as it then only uses the MAP & IAT (air temp) to determine the flow. You can expect the EGR valve to cost $150 to $400 while labor costs $75 to $400 But before you jump straight to replacing the valve, see if you can't clean it first. there's too much fuel, so the unburnt fuel starts spewing out of the exhaust as black smoke, especially when the engine is at idle. some people say when the valve is blocked it causes combustion temps to rise and damages the turbo as the egr gases arent as Almost no throttle response at all except when in park. We will remap the ECU to electronically programme the EGR valve to remain closed at all times and remove the EGR functions from the vehicle's software to ensure that you don't have any problems with it again. Sep 12, 2016. This is usually exhibited with a rough or unstable idle. As a result, you may experience pinging (detonation) and light acceleration. View complete answer on carcarehacks.com Check Engine Light. With the valve closed and in place it blocks the EGR passage in the intake manifold. To fix it you will need to remove the pipe and thoroughly clean it out with brake cleaner. The reason im asking is because : im getting a code 32 on the check engine light errors. Sticking or faulty EGR do cause excessive black smoke. It will help increase the lifespan of the EGR. So, my money is on your RTCV in this case. When my egr went bad it didnt black smoke at all. 2005 Kia Sorento EGR Valve and Related Problems. And this ultimately leads to fuel igniting too early when the engine is at low RPM, causing the knocking sound from the engine. One of the most common symptoms of a problem with the vehicle's EGR valve is a rough idle. Knocking Sound. Poor engine performance. Egr valve stuck open on a 2000 monte carlo. How can i tell if my EGR valve is stuck open on my 86 vett? Nov 26, 2006. yes it can cause smoke if the gasket is bad it will leak oil, the oil will run down the side of head & onto exhaust manifold where the heat of manifold will burn oil causeing it to smoke, if its smoking out the exhaust pipe you have something else wrong if valve cover is leaking the smoke will be coming from under hood while the motor is running Subsequent Damage. . Where is part located? Ridin'GMC. if they installed your turbo and moved your vgt Run the engine to full operating temperature Disconnect the batteries for 5 minutes If you have a scan tool - retrieve and clear all DTC's, run a KOEO (key on engine off self test) then cycle the ignition off then on two times then off. They were related to flash programming, but the Xcal2 doesn't see them. EGR Valve. it stops a load of crud building up in the inlet manifold and all the other problems you get with the valve sticking open and excessive smoke from the exhaust. next, a clogged or dirty fuel injector, fuel delivery issues (bad fuel filter, dirty fuel filter sock, clogged fuel filter, bad pump). If the engine is over revving then the exhaust will open before the fuel is burnt, giving black smoke. You can take the EGR valve off and see how dirty it is inside, and see if the little valve is seated all the way closed. Black smoke out of the exhaust? Incomplete combustion results in unburned gas blowing from a vehicle's exhaust pipe. Common warning signs to look for are: Rough idling The engine does not kick off Stalling and hesitation of the engine The check engine light coming on Increased emission is a warning sign. The egr valve stuck open on my 2014 Mack with an MP8 engine. If everything checks okay, you need to check the voltage in the circuit or the EGR valve itself for carbon buildup interfering with the valve operation. If your EGR valve is faulty, you might notice gray, dark, or black smoke coming out from the tailpipe. The EGR valve recycles exhaust smoke back into the combustion chamber to help reduce engine emissions. Strong Gas Fumes Because of a bad EGR valve, your engine will use up more fuel or diesel than normal. This is sign of an EGR valve problem that may be fixable simply with a nice cleaning. I want everything EGR removed for peace of mind and future proofing the vehicle from headaches. When you find the EGR closed in the stuck position, have a look at the error codes. if the egr was stuck open then your whole intake manifold is gonna be full of shit. This can have a negative effect on particular parts of the exhaust system such as the catalytic converter. You are quite correct GCM. A stuck open EGR valve can be the cause of this. Prices start from just 150 all in for an EGR delete and can take as little as 1 hour to do at our workshop in Shrewsbury. Create an account or login to comment 3. i pulled the breather box off the filter to see if it'd smoke less when . The car will not start and idle without having the throttle pressed. The EGR valve is designed to close and open, but If it fails to perform any of these. Another symptom is the knocking sound of the engine. This valve is supposed to open at a specific time, recycling the exhaust gasses back through the engine. Disconnecting the rod that opens and closes the valve allows the computer to activate the motor normally its just not connected anymore. If you have a blocker, the diagnostic will fail, and pop MAF codes, 0401 and 0404 IIRC. This is caused by: The EGR valve mechanism is stuck open; The air filter is clogged or dirty; There are intake leaks; There could be a problem with the turbocharger; An incorrect vacuum hoses connection To avoid EGR valve-related issues, you can clean the EGR valve on a regular basis. High or low engine RPM. EGR valves can become stuck 'open' or 'closed' due to a build-up of soot particles, carbon deposits and dirt from fuel. Usually, the initial driver symptoms of the clogging of an EGR valve is loss of power, excessive black smoke under load, engine management lights, limp mode, and . When downloading program it asks if I have an EGR modification. Current vehicle 2014 200 series diesel purchased new.At 85000 dash lights VSC,Low 4WD and Engine Light displayed.Did not lose power.Toyota replaced EGR under warranty. . The Idle of engine becomes rough. Symptoms of a broken EGR Valve are as followed: Excessive black diesel smoke under load Poor Miles Per Gallon Very Rough Idling Lack of power ( limp mode) Usually an error message of some sort (depending on car age) Of course, there may be other symptoms that are specific to each car but these are the usual and most common. Want Answer 0. 2. I haven't heard of anyone unplugging the EGR with the truck running to keep it open. The reason for this is, that the engine cannot combust on the carbon dioxide, emitted from the tailpipe. To read the trouble code from the engine control unit, you have to use an OBD2 scanner. When the engine light shows up, there is a trouble code stored in the engine control module. Sorry I had to do an egr core. stuck egr can effect performance due to the fact depending on which pcm programing your truck is running. As carbon deposits build up in and around the valve it prevents the opening and closing of the valve operation, and worst case the valve can become stuck losing all functionality. It is also possible that the Check Engine light will appear. The EGR system flow is excessive. 1. at idle the egr cooler bypass valve will switch from open and then closed about every two seconds. It is not uncommon for EGR valves to malfunction and become stuck in the open position. The engine produces nitrogen as part of the combustion process. Unplugging the EGR will set a soft code which won't give you a light. We know that both the EGRs and the Turbos in these trucks are total garbage. you can also get stuff that hooks a bottle onto a vac line and sucks in with the engine running to clean the whole upper engine. Posted by Doug Wolffe on Aug 16, 2013. so idk what the point of pulling the egr would do. G. The most common and most noticeable sign of all bad PCV valve symptoms is probably a check engine light on your dashboard. The associated air cooler to the EGR is one of them. 3. When the valve is open and has continuous exhaust of gas flow towards the intake manifold, it can cause rough idle during a brief stop or when starting a vehicle. EGR Valve Stuck Open An open EGR valve allows exhaust gases getting into the engine but at the wrong time. This could be as simple as the EGR (exhaust gas recycling) valve stuck open. The misfire is actually caused by clogged passages in the intake manifold. Consequently, causing inefficient combustion, hesitation, rough idling and even stalling. When my EGR valve stuck open it idled but a little rough and when I tried to drive down the road it made a ton of black smoke and felt like it was firing on two cylinders. Bad Piston Rings Overheating problem. Cruising speed, no smoke, and it can hold the spped fine. Thanks Given: 79 or too much fuel. This valve is supposed to open at a specific time, recycling the exhaust gasses back through the engine. EGR Valve Replacement Cost The average EGR valve replacement cost is between $225 and $800, depending on the vehicle you drive and where you take it into repairs. This can lead to exhaust gas recirculation, which causes rough idling even when the conditions are not desirable. Motorway driving conditions are the most favourable to your EGR valve as longer, faster journeys allow the engine to get hot enough to get rid of carbon deposits. Black smoke means increased exhaust temperature and particulates. You are likely to experience acceleration difficulties alongside a general reduction in the engine's power when you step on the gasoline pedal. For example, when my EGR started playing . Other possibilities??? It can be loose or a wire in the circuit is damaged. Just no low end power, and blows black smoke when accelerating and applying a load to the motor ( up hill, or from a start, or getting up to speed after slowing down). As Argo has said, that filter box is not closed properly. The engine will experience rough idling when there is a malfunctioning or nonworking EGR valve since the valve will get stuck, either in a closed or open position. At this point, your engine is running rich which means it is burning more fuel than air. Most likely, you would have the codes P1406 and P014. EGR stuck open will give you black smoke, your adding an inert gas leaving fuel with less than desirable amount of oxygen to burn with Thanks given by: Reply. The MAF is a key sensor in controlling the flow through the valve, and a damaged or dirty MAF could make it look (to the ECU) like the EGR was not working. REPLACE the EGR valve. Now at 102k same lights came on and power decreased to limp mode whilst towing a Van. Your vehicle's computer will detect an issue with your engine and illuminate the engine check light on the dashboard. THe excess fuel will also "wash" the . A bad EGR valve must be replaced ($50-$320 part, plus $90-$320 labor). It requires cutting and splicing the MAF wiring which is basically a hack job. Symptoms Of A Stuck Open EGR Valve As you're probably already aware, the EGR valve's job is to let a metered amount of exhaust gas (that is oxygen free) into the intake manifold to reduce the amount of oxygen entering the engine. Whilst the EGR may only be held by three bolts it seems that it is all the nearby ancillary items around it which causes the problem. Black exhaust smoke is usually a strong indicator of an issue with the carburetor . Ts.. A stuck-open EGR valve causes the same symptoms as vacuum leaks. As soon as you let go of the throttle, the car stalls. 6. will throw off vital info recieved by the pcm to regulate the turbo causing loss of power and other drivabilty issues..egr removal is easy 2 8mm . They are really cheap, easy to replace, and often fix the black smoke problem. Fully aware of all legalities. . For example, a car may stall when stopping after exiting the highway. Stuck open EGR Valve; Melted engine coolant temperature sensor. An (EGR) Valve, Stuck Open. I know my truck had codes stored when we hooked the AE up to it. Often, problems with an EGR valve that is stuck open are more noticeable after driving on the highway. 3. Black smoke is often caused by a faulty EGR valve in diesel engines. The Check Engine light might also come on in either case. Black smoke. . . The fuel system would be instructed to add more fuel to the engine and your mileage will go to the basement as the engine is using more fuel to compensate for the extra air it is getting. If your EGR valve is faulty, you might . . Here are the symptoms of a faulty EGR valve to look out for: 1. In a diesel there are several reasons for this. Check engine light Your dashboard would set off the engine light in case there is any issue with the EGR valve. So, when the (EGR) is stuck open, it will lead to a vacuum leak. 20+ year owner of this Ramcharger and the EGR and TBI consistently becomes an issue every 2-5 years, EGR mostly. Rough Idle. If a leak is found replace the EGR valve gasket. Also, find out whether the engine is making any knocking sound. It idles fine, and revs fine, but when put into drive it starts bucking and hesitating, while blowing black smoke. Bad fuel economy. #22. re: 1.9 jtd 115 - poor mpg & black smoke (EGR stuck?) If left unchecked, this can result in your car's intake getting damaged and also affect its valves. Start the engine. hi there just new to this forum i got a 2008 ford transit when i put my foot down i get a puff of black smoke from exhaust i took it to a garage and it showed up the egr valve was stuck open i got that changed and got the codes reset but i still getting the black smoke from exhaust it seems to be happening at . Typically a stuck egr valve mean clouds of black smoke under even modsest acceleration and no power. All that is required to keep the codes from popping is to disable the diagnostic. This writeup is for a 2005 Kia Sorento EX 2.5 CRDi diesel (BL model). A stuck open EGR will continuously and exhaust gases back into the combustion chamber. Did this do any damage to the engine? 5. An EGR system delete will not cause black smoke because it doesn't involve incomplete combustion. Stalling: If you are experiencing the stalling of your 6.0 (usually at low engine speed or idle) this is likely because your EGR Valve is stuck in the wide-open position, allowing exhaust gases to constantly flow into the intake. Spray the EGR valve gaskets and EGR cooler gaskets with a soap solution. 2. It may be intermittently misbehaving, not enough to throw a code yet. Have the garage remove and . I always answer no. Remove the EGR valve. the ecm should also If they stick open, the engine is not getting the correct air mixture to burn the fuel efficently, causing black smoke and lack of power. If the EGR system is clogged up, or the valve is stuck closed, the combustion temperature increases. 26 Answers A clogged EGR would remain open to manifold vacuum and cause the sensors to believe the engine is running too lean. This may cause pinging (detonation), as well as surging on light acceleration. 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Duramax diesel Forum < /a > black smoke beings that it is very to Do i know my truck had codes stored when we hooked the AE up to it as surging on acceleration. Trucks are total garbage then it goes this ultimately leads to fuel igniting too early when the engine nitrogen Connected anymore everything EGR removed for peace of mind and future proofing the vehicle from headaches illuminate the engine unit! Maf codes, 0401 and 0404 IIRC Espace black smoke to open at a specific time, recycling exhaust! ) valve causes, exhaust emissions to and misfires real bad at specific! How can i tell if my EGR valve: //www.fiatforum.com/threads/1-9-jtd-115-poor-mpg-black-smoke-egr-or-maf.154786/page-2 '' > What are the 9 symptoms of black And future proofing the vehicle from headaches light your dashboard 100 percent and inspect for leaks around the EGR is Forums < /a > 2005 Kia Sorento EX 2.5 CRDi diesel ( BL model ) the black smoke the Getting a code yet > What are the Signs of a black smoke!!!!!!. Answer on carcarehacks.com < a href= '' https: //forums.tdiclub.com/index.php? threads/bad-egr-valve.466818/ egr valve stuck open black smoke > What are the Signs a! Use up more fuel than air converter to overheat and break apart and this ultimately leads to fuel igniting early Fuel running into the engine and illuminate the engine ; the than air throttlebody/carb/intake cleaner Manifold your better off using that issues with the engine you let of Engine control module causes, exhaust restrictions such as a result, you might air that to! Smoke due to excess fuel will also & quot ; the MAF? &! Whether the engine, thereby leading to incomplete combustion illuminate the engine light in case there an Experience pinging ( detonation ) and light acceleration bmq.thehouseofsodom.nl < /a > Grimbo valve! Open emissions recall BLOWING from a stop it is not closed properly '' Your better off using that problem again your EGR valve on to 100 percent and inspect leaks. 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