P0404 Duramax

























































Basically if you are looking for a video browse the thumbnails or the search (right below this) to search Eric's video library!. There is no such thing as a 6. The PCM determines that the EGR valve is stuck open if the actual EGR position and the learned closed EGR position vary by more than a predetermined value. 2003 Duramax Diesel - exhaust gas recirculation open position performance troubleshooting and solution - what to look. The best source of automotive and light truck oil and fluid capacities. P0299 obd2 code and how it affects your turbocharger for chevrolet duramax diesel. The Duramax diesel engine is a popular option in Chevrolet and GMC trucks. Engine , Transmission, Etc. Questioned them about replacing the EGR control circuit and they stated on this truck it dosnt have anything to be replaced just cleaned and updated. 6L Duramax Diesel Engines (Years: 2004. Fix EGR Codes and Turn Off the Engine Light Vacuum egr valve EGR codes are quickly climbing the ladder of the most common causes of check engine light problems found on aging automobiles. but wow its ridicuous how loud it is, and its bugging the hel out of me. com, the place dedicated to that DTC (diagnostic trouble code) P0420. Cars & Trucks. Rough idle. However, it also occurs on some Ford models. What Is the EGR Valve? Without your EGR valve, the gas from your exhaust would be much more plentiful. Come along with Eric O. You can take a power probe and shoot 12v to starter solenoid wire and it will crank and run fine. com and Eautorepair. Discussion in 'Chevy Trucks' started by mercer_me, Sep 8, 2012. If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes. Trouble Codes Turn On Your Check Engine Light. The L5P duramax is the latest version of the Duramax V8 diesel engine. No other issues. This is why our company is seeking hard to find specifics of 2019 Chevy 3500 Z71 Duramax 0 60 just about anywhere we are able to. We take a close look at the evil of EGR on diesel engines and the havoc that it can cause to your late model Ford, Dodge, or GM diesel truck in this month's issue of Diesel Power Magazine!. We analyze millions of used cars daily. Diesel Duramax Classifieds - Participate in our marketplace for Diesel Duramax owners. Hot Shot's Secret Diesel Extreme is formulated with specific detergents to safely remove and prevent Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's) and other forms of varnish and deposits. P0299 obd2 code and how it affects your turbocharger for chevrolet duramax diesel. 6L Duramax LB7 / Page 2 2001 - 2004 6. Remove Vacuum Line. 5-2010 GM Duramax Custom Turbo Resonator Delete Cap. DIAGNOSTIC TROUBLE CODE (DTC) - P0562 SYSTEM VOLTAGE (ENGINE SIDE) TOO LOW Know your Circuit. replaced the egr valve, engine light still comes on same code P0404 from - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. 0L Powerstroke engines. Rough idle. Since exhaust gas is inert, it displaces oxygen and fuel, thereby lowering cylinder temps, which, in turn, lowers oxides of nitrogen emissions. GM OBD1 Diagnostic Trouble Codes & Cures This General Motors Corporation OBD I diagnostic page explains the codes, the most probable cause and what conditions are required to set the code. Save $10,407 on a 2002 Chevrolet Silverado 2500HD near you. 14 GEARS May/June 2008 W e hear a lot of questions about diagnostic trou-ble codes for Allison's Light Commercial Truck (LCT) 1000 transmission. com, the place dedicated to that DTC (diagnostic trouble code) P0420. No start condition - Turn the key and nothing happens. 0l Powerstroke EGR Valve Block-Off; Sinister Diesel 6. OBD II Generic Check Engine Light Codes. You are frustrated and ready to drive your car off of a cliff. Help? - Ok so my dealer or any other dealer would need my truck for a couple days and i cant do without at the current time. I cleaned the MAF. 4 liter that has me stumped with a P0404 code. The auto repair labor rates vary widely across the country, and even within the same city. Sep 17, 2010 · I have 2004 chevy duramax. Home / Engines / 2001 - 2004 6. Scanner showed P0307 Cyl #7 Misfire and P0404 EGR Valve codes set in the computer. P0299 obd2 code and how it affects your turbocharger for chevrolet duramax diesel. 5-2010 LLY LBZ LMM Duramax (0) Reviews: Write first review Description: 2004. Put the key into the ignition and turn it to the “ACC” position. The OBDII fault code P0401 means that the engine computer has detected that the Exhaust Gas Recirculation (EGR) system flow is insufficient. 6l (lly) duramax used in: hummer h1 sensed parameter fault code acceptable operating range and rationality primary malfunction detection parameters secondary monitoring parameters and conditions monitoring time length and frequency of check monitoring method fault code storage and mil illum. This diagnostic tests for an EGR valve that is stuck open. Sep 01, 2004 · Four banger 2. The scanner reads a PO299, turbo underboost, that's the only code it shows. 6l duramax diesel (lb7) c/k-truck engine diagnostic parameters sensed parameter fault code acceptable operating range and rationality primary malfunction detection parameters secondary monitoring parameters and conditions monitoring time length and frequency of check monitoring method fault code storage and mil illuminatio n cylinder 3. just don't like seeing that light on when I got 800 miles left in a trip. 7 Powerstroke Diesel engine, use a code reader to pull the trouble code and look it up on this list to see what it is. 9L Cummins engines and the April issue covered the most common DTCs for the 6. com and Eautorepair. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. If your car is running poorly, you may be having problems with your exhaust gas recirculation valve, or EGR. com is the premier Duramax Diesel Forum on the internet. Hello, Hopefully someone on here can help me out, I have a 1998 GMC Sierra Extended Cab 4x4 Automatic with a 5. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. 7 Powerstroke Diagnostic Trouble Code List DTC; Ford 6. What do you need help with? Start by selecting a Category. P0405 – EGR Sensor A Circuit Low. Operation Section 1±1 1. I have had issues today with the EGR valve on my TTID. GM recognized this issue and actually had to extend the warranty to 7-years/200k miles. Search over 36,200 listings to find the best local deals. You need to pull a vacuum hose off on top of the fuel filter the runs to the vacuum pump and check it for vacuum with the engine running. OBD II Generic Check Engine Light Codes. This will cause a continuous flow of exhaust gases into the intake manifold. Why P0299 fault code is related to your turbocharger boost pressure that can cause low engine power. It has a k&n intake & 5 inch turbo back exhaust need help dealer says nothings wrong. More About: AEM injection kit, cleaning intake manifold, diesel idling rough, diesel intake, diesel water injection, DPF delete, Duramax 6. While driving, the CEL comes on and the engine loses power. A two-way catalytic converter works by oxidizing CO (carbon monoxide) and HC (hydrocarbons "unburned fuel") to CO 2 (carbon dioxide) and water. P0401 egr insufficient flow. Not only that, but removing the EGR also reduces the soot buildup in the air intake helping to reduce maintenance costs and extend the engine's life by improving coolant flow for lower. Exhaust manifold on the 6. The LB7 was available for 2001 to 2004 model year GMC and Chevrolet HD pickups. Gently, remove the rubber vacuum line that connects to your EGR valve. Your engine may need a more thorough tune-up to be creating so much carbon so quickly. LB7 powered (through 2004 Duramax) Chevys and GMCs all suffer from injector failure at some point in their service life. First tried cleaning everything up (EGR valve, tube, new gaskets), but code remained. Background. The P0420 code is a very popular one and that's why there's a site dedicated to that specific trouble code. The catalytic converter is made of an aluminum oxide honeycomb coated with platinum and palladium. Engine Shut Off Going Down The Road Now It Won't Start. Jan 25, 2011 · p0404 is-egr flow ckt range/performance, check egr, remove from vehicle and clean out carbon from valve and where it mounts on engine. You may not notice if you have catalytic converter problems but the environment will. These are stored in response to a problem found in the truck by the system. This browser version is not supported. 2007 wk crd p0404 and limp mode 2: tcbrady: 44232: BC-X: Tranny dumps out of OD during low RPM - 2005 Liberty CRD Sport 3 lanthony2020: 26257: GreenDieselEngineering. Buenas, necesito aclarar un problema que presenta mi silverado 2008. I cleaned the MAF. net are the two best shop manuals—period! Unlike the cheaper Haynes and Chilton manuals that cover multiple year models, leaving the exact information you need to fix your car, these professional manuals cover your exact year, make, model. com is the premier Duramax Diesel Forum on the internet. The Exhaust Gas Recirculation (EGR) system’s purpose is to redirect exhaust gas back into the cylinders. Should have at least 15 inches. DIAGNOSTIC TROUBLE CODE (DTC) - P0562 SYSTEM VOLTAGE (ENGINE SIDE) TOO LOW Know your Circuit. P0404 code diesel duramax - Cars & Trucks question. Need your help- 04 Duramax-SES If this is your first visit, be sure to check out the FAQ by clicking the link above. The final part in this series will cover the 6. CASE 1: If your multimeter displayed 0. kd087 wrote:1999 Silverado 5. Duramax diesel egr valve keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. The use of pin point test KA on 2004. 4 liter that has me stumped with a P0404 code. We take a close look at the evil of EGR on diesel engines and the havoc that it can cause to your late model Ford, Dodge, or GM diesel truck in this month's issue of Diesel Power Magazine!. Kennedy Diesel is your source for Duramax performance. Aug 21, 2009 · OC Diesel knows that some 2003-2007 F-Super Duty, 6. What Does P0405 Code Mean? OBD-II Code P0405 is defined as a Exhaust Gas Recirculation Sensor A Circuit Low. Sep 02, 2015 · Or the sensing wires in the airstream become contaminated. Original owner. EGR because there are no accompanying codes (P0401 or P0404). Below are common check engine light trouble codes for the Chevy/GM Duramax diesel. Call us at 1-866-737-4966 with any questions you may have about your diesel. I was thinking about this around 10:00 last night and I finally figured it out!!! It turns out that the EGR was never kicking in because my throttle was not properly adjusted. I have installed every single aftermarket diesel tuner available. Set B1502 to 0. Computers & Internet. Call us at 1-866-737-4966 with any questions you may have about your diesel. P0700 & P1779. What is a Diagnostic Trouble Code (DTC)?. Engine related discussion ONLY. Lack of power as you accelerate the vehicle down the road. Should have at least 15 inches. The Exhaust Gas Recirculation (EGR) system’s purpose is to redirect exhaust gas back into the cylinders. This page lists OBD-II generic powertrain trouble codes, a. Re: P024F, P2453, P2584, P2585, P1412, P0404, U1900 codes come up on my car need hel Honestly, I really don't know, I'm hoping someone who's worked on them steps up to the plate. What the P0404 code means. See here for a step-by-step guide on how to diagnose and fix check engine light code P0401. Sep 08, 2012 · Engine Shut Off Going Down The Road Now It Won't Start. The pressure in the intake manifold increases when the EGR valve is open. 6L Duramax EGR manifold. Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. At Thoroughbred Diesel we are a real diesel performance and repair shop that offers free advice. Includes key design features, engine specs, horsepower/torque ratings, & more. Use transmission grease for the O-ring on the oil return line so you don't tear it while placing it in and turn it on with an oily surprise waiting for you( Brake cleaner and compressed air cleans the valley, but cover holes), only to take it back apart just to. 7 Powerstroke Diagnostic Trouble Code List DTC. Whether you are looking to tow or race, we have what you need to make your truck perform. 95 chev Lumina w/170k. The final part in this series will cover the 6. Help please duramax gurus. This is why our company is seeking hard to find specifics of 2019 Chevy 3500 Z71 Duramax 0 60 just about anywhere we are able to. You need to pull a vacuum hose off on top of the fuel filter the runs to the vacuum pump and check it for vacuum with the engine running. Call us at 1-866-737-4966 with any questions you may have about your diesel. com is the leading supplier of replacement, service and upgrade parts for diesel powered automobiles and light trucks. the dtc is p0404, egr stuck open. An OBDII code checker identifies defects in the exhaust system of the car. 5 diesel is not a duramax and the duramax is 6. The key difference between these vehicles is the emissions group. We analyze millions of used cars daily. DIAGNOSTIC TROUBLE CODE (DTC) - P0562 SYSTEM VOLTAGE (ENGINE SIDE) TOO LOW Know your Circuit. However, much like the engine itself, the automatic transmission has been significantly upgraded, including electronic monitoring and controls for every aspect of upshifting and downshifting. Sep 01, 2004 · Four banger 2. Why these codes? Well, these are the most common codes. The ignition voltage on the ignition feed circuit to terminal 7 at the ECM is controlled by the engine control module (ECM). 5 - 2005 GM 6. How to Reset Codes in a Chevrolet Duramax. A check engine indicator is a malfunction-indicator light or MIL for the computer-management system. 2005 lly. Aug 21, 2009 · OC Diesel knows that some 2003-2007 F-Super Duty, 6. The Biggest Problems With Power Stroke 6. 0 Liter Power Stroke diesel engine was used in 2003-2007 Ford Super Duty trucks and 2003-2010 Ford E-Series vans/chassis cabs, is a 32-valve pushrod V8. What does this P0401 diagnostic trouble code mean anyway? The correct definition for this diagnostic trouble code P0401 is “Insufficient EGR Flow Detected“. Engine decarbonizing machine that burns off and eliminates carbon deposits via a hydrogen pulse. Duramax Engine Identification Duramax Engine ID by VIN Number. Wszystkie kody błędów po Polsku - FORDTUNING. download p0238 duramax free and unlimited. Save $10,407 on a 2002 Chevrolet Silverado 2500HD near you. 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. Plug your OBD-II code reader into the port on the bottom of the driver’s side dashboard. it measures the amount of air entering the engine through the throttle valve. 0 Powerstroke Tuner. 4 liter that has me stumped with a P0404 code. on modern gm engines, the egr is 'digital' meaning that it isnt operated by vacuum. 5 and 2005 Duramax LLY engines are physically identical. I was thinking about this around 10:00 last night and I finally figured it out!!! It turns out that the EGR was never kicking in because my throttle was not properly adjusted. Not only that, but removing the EGR also reduces the soot buildup in the air intake helping to reduce maintenance costs and extend the engine's life by improving coolant flow for lower. its not, its really really loud, before it was quiet like a normal duramax. Cuando la enciendo a los pocos segundos activan los electeventiladores en su velocidad máxima, adicional cuando voy en marcha y le exijo por encima a 2000 rpm empieza a botar humo negro intenso, la salida de escape permanente esta llena de hollín. Also know as the MAF. FoxWellTool. Plug your OBD-II code reader into the port on the bottom of the driver's side dashboard. Car (or truck or mini-van) seems to run ok above 30 miles and hour but once you come to an idle, the engine barely stays running. 2005 lly. Introduction: The 2004. I replaced egr valve on 04 duramax but keep geting P0404 code is there some elec sensor to replace? 1998 Chevy Truck 1/2 ton 350 engine. 5 and 2005 Duramax LLY engines are physically identical. Took it to my mechanic and he put it on the computer and it indicated the EGR valve is bad. Why P0299 fault code is related to your turbocharger boost pressure that can cause low engine power. this sensor mounts to the intake manifold with 2 screws and measures boost pressure to feed to the pcm. P0404 GMC Meaning An Exhaust Gas Recirculation (EGR) system is used in order to lower Oxides of Nitrogen (NOx) emission levels. A check engine indicator is a malfunction-indicator light or MIL for the computer-management system. Learn what does P0404 Chevrolet Exhaust Gas Recirculation Open Position Performance means, location and how to repair? An Exhaust Gas Recirculation (EGR) system is used in order to lower Oxides of Nitrogen (NOx) emission levels. Below you will find the most complete list of GM trouble codes available. These are stored in response to a problem found in the car by the system. This EGR Override Circuit "Finger Stick" is For the GM 2500/3500 LLY 6. After miles of service, the exhaust gas recirculation (EGR) system—especially the EGR valve—will lead to engine performance problems due to carbon buildup, components mechanical problems, or vacuum hose leaks. 08 silverado duramax lmm egr cooler clean po401. The scanner reads a PO299, turbo underboost, that's the only code it shows. Nventa Biopharmaceutical Crop. Lack of power as you accelerate the vehicle down the road. Whether you are looking to tow or race, we have what you need to make your truck perform. About Flash Reprogramming PCMs. Then replaced EGR, plugs/wires (rough idle), still get code. Engine won't turn over with key at all. Also know as the MAF. The Duramax Engine. Aug 21, 2009 · OC Diesel knows that some 2003-2007 F-Super Duty, 6. 2 (52), which i did over 240k in and actually still sits on the drive and fairly resently (Feb 13) got myself a 93 Aero TTID (58) with 53k on the clock, it has been fantastic to drive compared to my old friend but have had a couple of scares, mainly that the EML would come on the odd time. Actually there are two kinds of bad EGR valves, with different symptoms. 6L Duramax LB7 / Page 2 2001 - 2004 6. FIXD explains symptoms, causes, and severity of P0401. Engine , Transmission, Etc. This browser version is not supported. Below are common check engine light trouble codes for the Dodge Cummins diesel. 0 Powerstroke. To find information about a specific trouble code enter it into the search bar. If your Check engine light is on you may have a serious problem. What Does P0402 Code Mean? OBD-II Code P0402 is defined as a Excessive EGR Flow. DieselPlace. Duramax diesel egr valve keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. No obvious symptoms or problems, truck seems to be running and starting fine. The pressure in the intake manifold increases when the EGR valve is open. 6 Duramax diesel with the Alison automatic. My check engine light would come on like once every few weeks and stay on for a couple minutes. Engine related discussion ONLY. The EGR will never come on. The Exhaust Gas Recirculation (EGR) system's purpose is to reduce NOx emissions that contribute to air pollution. Mass Air flow sensor code PO101 on an 2007 Chevy Duramax 2500 HD. How risky is it to drive with a faulty EGR valve for a few days (2010 Prius)? My check engine light went on yesterday and today the mechanic indicated that EGR valve needs to be replaced. Diesel Duramax Active Topics - Topics that are currently being discussed in the Forums. This truck intermittantly will not have enough power to pull itself off a stop. DieselPlace. Use transmission grease for the O-ring on the oil return line so you don't tear it while placing it in and turn it on with an oily surprise waiting for you( Brake cleaner and compressed air cleans the valley, but cover holes), only to take it back apart just to. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. You are frustrated and ready to drive your car off of a cliff. Whether you need ALLISON AT wiring diagram information, ALLISON AT transmission rebuilders tips, ALLISON AT technical information, ALLISON AT diagnostics, ALLISON AT troubleshooting help, or just answers to your ALLISON AT transmission rebuilders question, the Transmission Rebuilders Network is the place to go!. Check Engine Light will illuminate; In most cases, there are no adverse conditions noticed by the driver. check for blockages in the paths into and out of the egr valve. This circuit MODIFIES the MAF signal to the computer on the LLY engines (Not LB7, Not LBZ, Not LMM) to expected levels when the EGR is blocked off, modified or a big free flowing exhaust system (removing the cat) causes the ECM to set an EGR code and display the check engine. po401 code chevy, Cost of diagnosing the P0401 CHEVROLET code. We carry stock replacement to High Performance Borgwarner S400. The Duramax diesel engine is a popular option in Chevrolet and GMC trucks. The Exhaust Gas Recirculation (EGR) system’s purpose is to redirect exhaust gas back into the cylinders. The OBDII fault code P0401 means that the engine computer has detected that the Exhaust Gas Recirculation (EGR) system flow is insufficient. We carry a wide selection of Turbos for the 6. May 31, 2018 · Code P0401: Exhaust Gas Recirculation (EGR) Flow Insufficient Detected. BD2 Module Trouble Code Comprehensive List Gas and Diesel PC. 9L Cummins engines and the April issue covered the most common DTCs for the 6. There are numerous pattern failures and the engine has undergone major changes since its' first introduction in 2000 to correct them. anything I can do to help keep the light from coming on and throwing. just don't like seeing that light on when I got 800 miles left in a trip. What Is the EGR Valve? Without your EGR valve, the gas from your exhaust would be much more plentiful. Sep 01, 2004 · Four banger 2. 5 - 2005 GM 6. 6L Duramax LB7 specifications, history, & information. I put this in my F250 manufactured stamp datw of Dec '03, sold as an '04, was to unsure, but installed it myself and fits mint. Get the BEST auto repair information Alldatadiy. Use transmission grease for the O-ring on the oil return line so you don't tear it while placing it in and turn it on with an oily surprise waiting for you( Brake cleaner and compressed air cleans the valley, but cover holes), only to take it back apart just to. Remove Vacuum Line. I replaced the EGR valve. Full list of OBD II Diagnostic Trouble Codes for your Vehicle. Engine , Transmission, Etc. Set B1502 to 0. It has a k&n intake & 5 inch turbo back exhaust need help dealer says nothings wrong. DIAGNOSTIC TROUBLE CODE (DTC) - P0562 SYSTEM VOLTAGE (ENGINE SIDE) TOO LOW. These are stored in response to a problem found in the car by the system. Took it to my mechanic and he put it on the computer and it indicated the EGR valve is bad. download p0238 duramax free and unlimited. Aug 18, 2015 · How to clean a 6. com is the leading supplier of replacement, service and upgrade parts for diesel powered automobiles and light trucks. The best source of automotive and light truck oil and fluid capacities. I replaced egr valve on 04 duramax but keep geting P0404 code is there some elec sensor to replace? 1998 Chevy Truck 1/2 ton 350 engine. The best source of automotive and light truck oil and fluid capacities. Jun 30, 2018 · 2019 Chevy 3500 Z71 Duramax 0 60 is probably the most popular thing mentioned by more and more people online. Why these codes? Well, these are the most common codes. How do I fix the problem? I installed a new GM mass air flow sensor and new EGR valve and it didn't fix my problem. Dec 24, 2011 · Mass Air flow sensor code PO101 on an 2007 Chevy Duramax 2500 HD. Diesel Duramax Classifieds - Participate in our marketplace for Diesel Duramax owners. Because there is no factory lift pump to circulate fuel, the injection pump has to suck fuel from the tank and through the filter to run. You can take a power probe and shoot 12v to starter solenoid wire and it will crank and run fine. No other issues. Has anyone else experienced this issue?. com is the premier Duramax Diesel Forum on the internet. Aug 27, 2019 · Read your owner's manual for specific maintenance schedules, but you can generally inspect your EGR valve every 12,000 to 15,000 miles (19,000 to 24,000 km). Sep 08, 2012 · Engine Shut Off Going Down The Road Now It Won't Start. The EGR valve controls the exhaust flow into the intake manifold from the exhaust manifold through an orifice with a Powertrain Control Module (PCM) controlled pintle. replaced the egr valve, engine light still comes on same code P0404 from - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. 6 LLY Duramax and Allison trans bone stock with 46,000 mi. hey guys found this website with all the codes (most of them) while looking at my p0171 code the other day DTC CODES P0100 to P0199 P0100Mass or Volume Air Flow Circuit P0101Mass or Volume Air Flow Circuit Range/Performance Problem P0102Mass or Volume Air Flow Circuit Low Input P0103. 0L lariat FX4 46K Sold. 2005 Chevy Duramax won't crank 31 Answers. What is a Diagnostic Trouble Code (DTC)?. DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient. We carry a wide selection of Turbos for the 6. Car (or truck or mini-van) seems to run ok above 30 miles and hour but once you come to an idle, the engine barely stays running. The "Malfunction Indicator Lamp" (or MIL ) comes on to warn you when the Onboard Diagnostic System (OBD II) detects a problem that cold cause your vehicle's emissions to exceed 1. Circuit Description. Diesel Duramax Classifieds - Participate in our marketplace for Diesel Duramax owners. I have a 2005 Pony Express Motorhome on a C5500 Kodiak chassis with a 6. 5-2010 LLY LBZ LMM Duramax (0) Reviews: Write first review Description: 2004. 7 Ltr V8I was getting a p0404 code, now first let me say a New EGR valve was put on about 2 months ago and I was getting codes that o2 Sensors needed replaced so I did that this last weekend then the P0404 code popped up so pulled egr valve and cleaned and cleaned and cleaned. " A new EGR valve. We are your best parts source for BMW, Ford, GM, Mercedes-Benz, Ram, Sprinter, and VW diesels!. 6 LLY that has the famous EGR Code P0401 and P0404. © Barry Brideau 2003-2019. P0404 Exhaust Gas Recirculation (EGR) Control Circuit Range/Performance P0405 Exhaust Gas Recirculation (EGR) Sensor A Circuit Low P0406 Exhaust Gas Recirculation (EGR) Sensor A Circuit High P040B Exhaust Gas Recirculation Temperature (EGRT) Sensor A Circuit Range/Performance P040C Exhaust Gas Recirculation Temperature (EGRT) Sensor A Circuit Low. Call us at 1-866-737-4966 with any questions you may have about your diesel. 5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving. We recommend Torque Pro. 5-2010 GM Duramax Custom Turbo Resonator Delete Cap. I have a 2005 Pony Express Motorhome on a C5500 Kodiak chassis with a 6. Hear the fuel pump run. The P0420 code is a very popular one and that's why there's a site dedicated to that specific trouble code. such as P0404;. Jun 30, 2018 · 2019 Chevy 3500 Z71 Duramax 0 60 is probably the most popular thing mentioned by more and more people online. The February issue covered the most common DTCs for 5. APPLICABLE VEHICLE AND PRODUCT INFORMATION 1. Moral of the story: code "P0402- EGR Excessive Flow" is bogus. even when the engine light is on when it's throwing this code, it pulls fine and still runs cold. PCV) system. The cure is to flash reprogram the PCM to compensate for the drop in vacuum. 5 and 2005 Duramax LLY engines are physically identical. Now a new code popped up on scanner p0404 which is EGR sensor I believe lol. Learn what does P0404 Chevrolet Exhaust Gas Recirculation Open Position Performance means, location and how to repair? An Exhaust Gas Recirculation (EGR) system is used in order to lower Oxides of Nitrogen (NOx) emission levels. 6L Duramax LB7 / Page 2 2001 - 2004 6. You can take a power probe and shoot 12v to starter solenoid wire and it will crank and run fine.