Duramax Exhaust Leak Noise

so i developed a exhaust leak drivers rear corner of engine. Get FREE shipping and low prices at Sinister Diesel online today!. Internally, the LMM Duramax (’07. On the outskirts of a small town along the Utah/Colorado border, I prepare to pass slower traffic in a 2017 GMC Sierra 2500 Denali with the new 6. I hear a loud hissing sound from behind the engine. pdf), Text File (. I did some reading and see that the exhaust manifold bolts can crack off and cause a leak. I have recently acquired an exhaust leak sound with a ticking noise coming from the driver side lower engine bay. The diesel engine (also known as a compression-ignition or CI engine), named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression (adiabatic compression). Gibson Exhaust-a leading manufacturer in cat back performance exhaust systems, mufflers, headers, exhaust tips, metal mulisha exhaust, for trucks, jeep, suv, muscle car, marine and side x side. One of the first things we suggest when starting to tear down a Duramax pickup for a head gasket job is to remove and test the egr cooler. This race exhaust system is constructed from precision, mandrel bent 4 aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. Inspect for the EGR valve sticking open. At Bar’s Leaks, we can point to nearly 70 years of helping drivers effectively stop leaks. lubrication specialist duramax fuel filter change. the exhaust bellows that allow for vibration on the exhaust pipe that feeds into the egr cooler are very thin metal and break very easily. While driving just above idle (around a parking lot for example) the noise is very present and loud. Or the manifold itself could be cracked. don't be fooled by cheap pricing! bd diesel 1300030 apps noise isolator (94. 6 duramax diesel is blowing smoke and has loss of power. 7-liter Cummins' exhaust manifold can shrink from excessive heat. I'm pretty sure you can ignore the washer system. The new to me Duramax has a ticking noise going on as soon as you step on the gas. With a great-sounding, open, and free-flowing design, the Monster Exhaust system never disappoints with it’s performance gains. We get the first official look under the hood of a 2019 Chevy Silverado 1500 with a 3. 4 Powerstroke and 6. Exhaust gas recirculation reduces the formation of NOX by allowing a small amount of exhaust gas to "leak" into the intake manifold. 8L Turbo Diesel is the cleanest diesel truck engine ever produced by General Motors and meets some of the toughest U. The 2011 GMC Sierra 2500 has 5 problems reported for diesel exhaust fluid system. And in the end, various exhaust treatment systems have eliminated unpleasant smells and black smoke from the tailpipe. 6L DSL Turbo White Exhaust Smoke/Leaks PS Pump Noise, Leaks. The first sign of an exhaust leak is often heard. If the shaft is in contact with the seals it can wear them out. Of all the companies that produce exhaust systems, Gibson exhaust systems offers the widest selection of SUV and truck exhaust styles. The gaskets failed and I could see black deposits and feel air around some of the exhaust manifold tubes when the engine was running. i found the solution by looking online, and am very impressed with them. Inside the outer tube is a core tube that has perforations or louvers, often called a flow tube. The removal of extensive oil deposits can expose marginal or damaged oil seals that may then leak. Searching for a readily available turbo that could add both power and reliability to 6. Found major exhaust leak, found cylinder head straight, exhaust manifold had 1/16" gap on front exhaust port, during disassembly found both inner studs on turbo-to-cat flange missing nuts. Wear safety glasses when underneath the engine as all the rust, corrosion, and dirt breaks free from the exhaust pieces. 7L powered Blue Ovals yet retain the engine's abundance of low-end torque, the Power Stroke gurus at Elite Diesel Engineering chose to produce a bolt-on kit around the Duramax-intended GT3794VA. Oil or Antifreeze Entering Exhaust. If you have a 2001-2004 Duramax 6. This eliminates any potential for wet motors due to a damaged or leaking seal. This race exhaust system is constructed from precision, mandrel bent 4 aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. 6l Turbo Diesel Repair Experts Point out Common Problems. All my accessories on the belt seem fine and have not seen any fluid leaks anywhere. Any ideas ?? Is there a gasket material / cement to. A pre-turbo (uppipe leak), kinda sounds like a pissed off squirrel. We are there for every landmark moment, supporting race teams, engineers and drivers. Exhaust gas recirculation reduces the formation of NOX by allowing a small amount of exhaust gas to "leak" into the intake manifold. I guess these warp. Up pipe connection into turbo. An alternative method of a vacuum leak inspection is to pinch a supply line to the accessory and observe engine speed, an increase indicates a leak. ATS has products for GM Duramax, Dodge Cummins, and Ford Powerstroke diesel trucks. Exhaust leak behind turbo. com FREE DELIVERY possible on eligible purchases. As the metal expands, exhaust manifold cracks and flanges expand, allowing more exhaust gases to escape. I guess these warp. Clean ALL components and connections thoroughly prior to re-assembly. "The manifold gasket can be an issue," said Maschner. The engine is a LLY. I finally found the annoying little leak! Chasing pool leaks, Don't call a leak detection company until you watch this - Duration: 9:54. ) Halsten, an ASE-certified mechanic with more than 20 years experience working on GM diesels, says the Duramax EGR only operates at idle and cruise where it allows “inert gases” into the cylinders so the engine can run leaner for optimum mpg while keeping the combustion chamber. Replacement and Performance Parts for 05-06 Jeep Liberty 2. This allows the LML to exceed currently mandated federal emissions requirements and potentially meet future requirements as well. Their design allows for extra clearance for aftermarket up-pipes without compromising the exhaust flow. Failing injectors will often leak fuel into the crankcase, resulting in elevated oil levels and even leaks that appear to be from the rear main seal. Upgrading your stock exhaust system to our 4" or 5" diameter diesel exhaust system will help lower Exhaust Gas Temperature (EGTs), while increasing horsepower and torque. If the muffler bracket has broken, or the rubber hanger is worn, the muffler and exhaust pipe may hang down, placing additional strain on the hot manifold, and. 3 Powerstroke was made to be as quiet as possible for the stock configuration but it is also very restrictive when making more power. 6L Duramax LBZ pickup trucks. With aluminum heads and an iron block, sooner or later a bunch of power and/or 100,000+ miles on a multi-layer steel design, you will encounter head gaskets issues. Fleece Performance Engineering is a leading manufacturer of aftermarket diesel performance products. Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. You should first have the water pump check out and if it turns out it is not leaking then it is possibly a head gasket leak. For example the bearings having to much slop in them. I've heard some people buying a duramax gasket, saying it works better. What I have found is one manufacturers exhaust kit will work great on a Powerstroke, but I can buy an exhaust from that same company and try it on a Duramax and it doesn't fit for crap and sounds. The second issue are the expansion joints in the pipes from the exhaust manifolds to the turbos. Turn off the brk and the noise goes away. In order to reintroduce exhaust gas into the intake of a diesel engine, the exhaust gas has to pass through what is known as an EGR cooler. The latest version of the 6. 5 litre forms, but with more power. Air leak sound at high RPM Ok so here is what i have, I have what sounds like a air/vaccum leak sound from the engine area when I am around 2800 RPM and about 75% into the throttle. For example, a leak in your valve cover gasket can allow oil to leak onto your exhaust manifold which is so hot it can cause smoke or even a fire making it a very dangerous leak. Home; LML (2011-2016) Lift Pumps; AirDog II-4G 165gph A6SABC410 DF-165-4G Lift Pump 2011-2014 Duramax. Scan through our full selection, select a sub-category below, or use our vehicle categories on the left to choose the part or system that is perfect for you. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. An external engine oil leak can drip onto hot engine and. 6L LB7, LLY, LBZ & LMM Engines Choose A6SPBC259 DF-100 / A6SABC409 DF-165 / A6SABC112 DF-200 In Options The patented AirDog® II-4G has been quality engineered to remove entrained air and water vapor from diesel fuel. And as you stated I never did do the exhaust turbine and housing … wondering if I just but this kit and throw on the wicked wheel 2 and it’ll all go back together on my 06 5. Internally, the LMM Duramax (’07. There was a revision to one of the fuel lines at the high pressure fuel pump for a noise issue. The patented AirDog® II-4G has been quality engineered to remove entrained air and water vapor from diesel fuel. 5 HD Silverado and Sierra debuted a fresh body style, much of the powertrain was carried over from ’07 models. The diesel engine (also known as a compression-ignition or CI engine), named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression (adiabatic compression). When cold I get the squeal noise if the eng brk is on. How to upgrade ’14-’16 Chevrolet & GMC 6. And with the possibility of it entering the passenger cabin can be a dangerous situation as carbon monoxide is odorless Keep a close eye on that flex pipe!. Replied by DFRanger on topic Chevy Silverado coolant leak Sounds like you may be on the right track. smoke making a loud knocking noise no warning lighs loss of power could not stop drove for. Changing out your exhaust is a great way to improve the performance of your vehicle, and get a look and sound that will make your ride turn heads on the road. I have 03 2500 duramax diesel with an allison tranny. It's happened about 5 times now where it will develop a loud squealilng/whining noise from the engine area, and it'll lose a ton of power. An up-pipe leak whistles (screams) like crazy, especially under load, as the pressure gets pretty high in there. 8L CRD and 2016+ Colorado/Canyon 2. Next is the fuel line grounding out on the firewall. If nothing happens, either the actuator is bad or it is possible the variable veins in the exhaust side of the turbo are coked up and need cleaning. This allows the LML to exceed currently mandated federal emissions requirements and potentially meet future requirements as well. I recently had dual exhaust installed on it (they sound sweet by the way). The last Banks Duramax product we’ll describe for you today is the Banks Power Dual Monster Exhaust System built for a 2006-2007 6. The reason for this is due to the fact that vehicle exhaust is delayed on exiting the combustion chamber. I have a 2008 Duramax and I just got a new 5th Wheel trailer. I have been hearing a squeaking sound during acceleration. Could barely hear it at idle but under a load it was very load, coasting didnt make a sound. Tried putting in a new manifold gasket but leaks even worse now. EGR valve and EGR cooler – The new EGR system Decreases exhaust emissions (oxides of nitrogen / NOx) by reducing charge temperature and reducing excess levels of O2 in the combustion chamber. 4WD No leaks All new ball joints, bushings, control arms, new shocks, 4 lift. Diesel Power Products Blog - In the world of high-performance cars, Ford has built quite a name for themselves in the last few decades with some special-edition coupes. Diesel Ops is committed to providing our customers an unparalleled shopping experience. The diesel engine (also known as a compression-ignition or CI engine), named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression (adiabatic compression). ) If the noise(s) you have been concerned about go away during a purge, then you can breathe easy. 01-07 duramax exhaust system; 07. This Tech Tip has been written in an attempt to educate and minimize time spent on the phone discussing something that shouldn’t be so complicated. Exhaust leak should be noticeable do to buildup of soot around affected area. I removed the heat shield and then took off the header. 6L Duramax LLY engine, USDieselParts offers a wide selection of quality diesel fuel pumps such as FASS and Airdog as well as brand name CP3 diesel fuel injection pumps and common rail injectors in stock replacement and high performance options to keep your Duramax engine up and running strong for years to come. Yeah, the steam isn't coming from the exhaust manifold, its coming out my rear pipe, and no, I didnt use a liquid wrench, and the fluid that is exiting my exhaust is indeed coolant fluid (anti freeze + water) because it smells like it. Changing out your exhaust is a great way to improve the performance of your vehicle, and get a look and sound that will make your ride turn heads on the road. One of the first things we suggest when starting to tear down a Duramax pickup for a head gasket job is to remove and test the egr cooler. Since exhaust gas is inert, it displaces oxygen and fuel, thereby lowering cylinder temps, which, in turn, lowers oxides of nitrogen emissions. That's why your Duramax diesel needs the SATURN 4S down-pipe back exhaust system by aFe Power. All my accessories on the belt seem fine and have not seen any fluid leaks anywhere. The application of variable turbochargers and sophisticated fuel injection systems have enabled a wide torque range and faster throttle response, while offering a considerable engine noise and vibration reduction. I removed it when I purchased it to install a ram air intake. How to upgrade '14-'16 Chevrolet & GMC 6. You obviousely have never changed a water pump on a 6. It just got new glow plugs by the dealership and I was told that the hydrobooster and the power steering hose is leaking. ) If the noise(s) you have been concerned about go away during a purge, then you can breathe easy. Vibration or rattle-type noise coming from the exhaust system at idle with engine rpms between 613 and 712. It has 165,000 miles on the clock, and I have owned is for nearly eight years. this part is designed to fit most gm/chevy motors and clamps on the manifold to make a permanent seal. for exhaust. One of the first symptoms of a problem with an exhaust manifold gasket is an excessively noisy engine. An exhaust leak on the downpipe often sounds like a hissing, even at idle. The popopopoppping noise you describe sounds like when the load backs off (and when it would then be fuel rich as Bill W mentions). The PureFlow AirDog II-4G A6SPBC262 DF-100-4G Air/Fuel Separation System for your 2015-2016 6. LB7 injectors are also prone to leak on the return side. 6l duramax engine lml transmission allison transmission 1000 series 4x4 chevy duramax allison transmission duramax allison transmission fluid. There are several problems created with exhaust manifold cracks and leaks. General Motors' highly anticipated reveal of the next generation Duramax diesel was momentarily interrupted by inadvertently publishing details of the engine's 2017 model year horsepower and torque figures via GM's Powertrain division website. I haven´t checked the injector balance rates because I´m lacking the tools. It can only come from three places. 01-07 duramax exhaust system; not the aftermarket unit that is known for leaking. Two hours later they ended up changing the clamp. Shut down and get cold---the noise returns for awhile. 5 magnaflow downpipe back DPF delete. Regardless of the muffler’s internal design (i. It's also good for finding exhaust leaks—an exhaust leak upstream of the O2 sensor can pull in extra oxygen and mimic a vacuum leak, even if it's not large enough to make any noise. In this situation, we suggest to not ignore it. I can only notice it when its in gear and i am at a stop. Okay so Duramax engines have this weird scream when they go full throttle. Exhaust leak sound - normal??? Duramax 6600. This is a common failure and is most often caused by wear in the injector nozzle resulting in incomplete sealing. Purchase Default Category from Dieselops. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. *tt this bulletin replaced 01-06-05-003 dated 07/01/2001. A feather or cigarette paper glued to a piece of stick. The noise may be intermittent depending on the outside temperature and or temperature of the exhaust system at the time of testing. There are a variety of different fluids in a today’s automobiles, and you don’t have to take a class in automotive technology to be able to recognize them. The amount of gas leaked into the intake manifold is only about 6 to 10% of the total, but it's enough to dilute the air/fuel mixture just enough to have a "cooling effect" on combustion temperatures. 1st off it isnt belt driven it is gear driven from the drive train inside the engine. Two forces control diesel engine evolution for all engine manufacturers - Emissions compliance and market share. I can place the truck in park and rev to about 15-1700 rpm and the ticking will increase in volume with those revs. We get the first official look under the hood of a 2019 Chevy Silverado 1500 with a 3. Two hours later they ended up changing the clamp. Lastly, I should also mention that the sound seemed to get louder after adding the catback, which seems counter intuitive because one would think the louder exhaust would drown out some of the exhaust leak noise (if that's what it is) - I do not think the catback could have caused/increased the noise/leak because it doesn't go up that far - the. I've noticed when I first start up my truck and go down the road I hear like a ticking sound on the passenger side for about 1 minute, then once it heats up and it expands I don't hear it any more. 6l duramax engine lml transmission allison transmission 1000 series 4x4 chevy duramax allison transmission duramax allison transmission fluid. You can best hear it if you put your ears under the driver door I lifted up the car and looked under while it was running and I can't seem to figure out if the hissing is coming from the exhaust flex pipe which it what it sounds like or from my turbo boost/vacuum lines. I sold the truck so I don’t need it asking $150 obo comes with everything box, mount filter etc. com FREE DELIVERY possible on eligible purchases. Going from a 1. Todd Bonnard’s Custom Nissan GU Patrol ute might still be a work-in-progress, but it already cops a serious lift-kit and a Duramax V8 with more power to come – Whichcar is the online home of 4x4 Australia magazine. Replacement and Performance Parts for 05-06 Jeep Liberty 2. After hrs of checking exhaust, up pipes turbos etc it turned out to be my number 8 injector hold down bolt had come loose allowing air to blow past it. If you have a 2001-2004 Duramax 6. Edelbrock is the most respected name in performance! Since 1938, Edelbrock has manufactured its core products in the USA for quality and performance. 6L Duramax is engineered to perform in the most extreme environments. To get a better look at things take out your fender liner and get your head in there with a good light. This race exhaust system is constructed from precision, mandrel bent 4 aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. The Five Overlooked Car Maintenance Items How Preventative Maintenance Can Help You Avoid Catastrophic Repair Costs. Engine exhaust back pressure is defined as the exhaust gas pressure that is produced by the engine to overcome the hydraulic resistance of the exhaust system in order to discharge the gases into the atmosphere. EGR and or MAF problems or intake leaks after the MAF sensor. Seems to be getting louder and louder with time. I also checked for traces of coolant in the oil. Blueprinting is defined as removing or narrowing the tolerances found in mass production engines. I've read a little through the old posts but couldn't find an exact answer to a question I have. This includes both exhaust gas and muffler shell noise. This will reduce the efficiency of the EGR system, and negatively affect engine performance. From that, it can lead to cracking and lost efficiency in the exhaust system. All 6600 Duramax™ diesel engines have this condition; however, some are more audible than others. Yeah, the steam isn't coming from the exhaust manifold, its coming out my rear pipe, and no, I didnt use a liquid wrench, and the fluid that is exiting my exhaust is indeed coolant fluid (anti freeze + water) because it smells like it. AMSOIL synthetic motor oils have an inherent detergency and natural solvency, which can clean and remove deposits left by conventional oils. CAUSE: As the exhaust system warms and cools, the muffler and the muffler heat shield expand and contract at different rates and may cause a popping and/or snapping noise. Vibration or rattle-type noise coming from the exhaust system at idle with engine rpms between 613 and 712. And since you have a flashing cell (which means you should not be driving it or getting into boost), what is the code?? Russ. The factory exhaust on the 7. I have a loud knocking noise coming from the engine. Save on Lisle Water Sensor Wrench for 6. Going from a 1. 6L V6 engine (RPO LFY). This is where it gets fun. If the oil gallery cup plug is found to be leaking replace all 3 of them at the same time. One of the best ways to reduce heat under the hood is with exhaust heat wrap. The Duramax V8 engine is a General Motors Diesel V8 engine family for trucks. duramax suplement manual. Pace Performance offers the best pricing on products offered by GM (General Motors). the CLEANING EXHAUST FILTER KEEP DRIVING UNTIL MESSAGE IS CLEARED message is no longer displayed. I just saw your website and I really hope you can help. One of the first symptoms of a problem with an exhaust manifold gasket is an excessively noisy engine. Gravity causes the warmer air to rise, expelling the wetter air out of the exhaust roof vents near the top of the roof. An exhaust system is usually piping used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. smoke making a loud knocking noise no warning lighs loss of power could not stop drove for. I have noticed there's a lot of people with this issue. A coolant leak, even small, can lead to the serious risk of damage to your dear vehicles. The cooling system, or the windscreen washer system, or the exhaust. The noise usually is most noticeable at the rear of the driver's side front wheel well. I get about 16 mpg in town and about 19-20 hwy at 80 mph. Sounds like either a nasty exhaust leak or more likely compression leaking past a glow plug. This exhaust system features 4" aluminized steel that is mandrel bent for maximum flow and includes dual 304 stainless steel tips that polished to a brilliant shine. An external engine oil leak can drip onto hot engine and. Can anyone tell me what exactly I need to change to get rid of the exhaust hissing noise you hear at idle with a turbo back exhaust? I want the deep rumble I hear every once in awhile when the turbo vanes change. Nothing like going through all this trouble, only to end up with an oil leak or another exhaust leak. I have a new belt, and new idler and tensioner pulleys. The truck has about 50k on it now. Find Cat Back dual exhaust kits, downpipes, manifolds, headers and more for your Powerstroke, Duramax or SuperDuty diesel truck. This race exhaust system is constructed from precision, mandrel bent 4 aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. 1 exhaust manifold leak iRV2 year and we had several other leaks there. Hunt Fish Drive on Facebook: https://www. This is a known problem with the LB7 and GM extended the warranty on these injectors to 7 yrs/200,000 miles. Before the exhaust gas reenters the intake at this temperature, it has to be cooled. 9 6 speed manual with the he 351. 5-10 duramax exhaust system; 11-15 duramax exhaust system; 15. com FREE DELIVERY possible on eligible purchases. The injectors do indeed make a clicking noise that is audible with a mechanic's stethoscope, and that is a good way of verifying an injector is not dead, but that noise is not normally audible while the engine is running, and I doubt that is what you hear without the stethoscope. I finally found the annoying little leak! Chasing pool leaks, Don't call a leak detection company until you watch this - Duration: 9:54. We are fueled by the desire to give our customers the power to fix their leaks themselves, safely, affordably and quickly. EGR valve and EGR cooler – The new EGR system Decreases exhaust emissions (oxides of nitrogen / NOx) by reducing charge temperature and reducing excess levels of O2 in the combustion chamber. How to Tell If Your Duramax Diesel Turbo Is Gone? by Richard Rowe Introduced in 2001 as a joint venture between GM and Isuzu, the Duramax V-8 was the General's bid to one-up Ford and Chrysler's newest generation of powerful and efficient diesels. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation. All my accessories on the belt seem fine and have not seen any fluid leaks anywhere. 6L DSL Turbo White Exhaust Smoke/Leaks PS Pump Noise, Leaks. A diesel engine exhaust temperatures can be much higher than gasoline, reaching as high as 1,200° F. any ideas? what could be causing this?. However, motor oils are designed to help swell seals slightly to prevent leakage. They're only good to 22 psi. Replied by DFRanger on topic Chevy Silverado coolant leak Sounds like you may be on the right track. This Tech Tip has been written in an attempt to educate and minimize time spent on the phone discussing something that shouldn’t be so complicated. What is this truck like to live with on a regular. One of the first things we suggest when starting to tear down a Duramax pickup for a head gasket job is to remove and test the egr cooler. Exhaust leak should be noticeable do to buildup of soot around affected area. This is a discussion on Cant stop exhaust leak within the General Help forums, part of the LSx Technical Help Section category; I cant stop my exhaust from leaking where the headers meet the y-pipe. First, hot exhaust gases are now being vented under the hood, rather than being sent downstream through the exhaust pipe. In this situation, we suggest to not ignore it. Several of the following lean fuel and exhaust DTCs also may be set: P0171, P0174, P0420, P0430, P2096, P2097, P2098, or P2099. At Bar’s Leaks, we can point to nearly 70 years of helping drivers effectively stop leaks. Read about GM's all-new half-ton truck diesel, the revolutionary Duramax 4500, only on dieselpowermag. While driving just above idle (around a parking lot for example) the noise is very present and loud. 6L LLY/LBZ GM Duramax's came factory equipped with a 3. Leaking valve seals result in blue-gray exhaust. I just love the sound of a small block Chevy so the first thing I did was put in a stainless steel system in. 2003 chevrolet 6. I haven´t checked the injector balance rates because I´m lacking the tools. Internally, the LMM Duramax (’07. You should check the seal between the turbo and exhaust manifold, as I've heard of this leaking before, but in those cases it was making such a noise that it sounded like a mechanical problem. I can only notice it when its in gear and i am at a stop. Get the best deals on Exhaust Pipes & Tips for Chevrolet Silverado 2500 HD deep sound while ensures smooth exhaust gas flow. Seems to be getting louder and louder with time. It's common, particularly on 2001-to-2007 LB7 models, for the filter housing before the filter to develop cracks and leaks in the O-ring, allowing air to enter the system. These are signs of bad rings or of a cracked piston in your car. Dirty air filter; Exhaust leaks or Boost leaks, you can usually hear a boost leak as a high pitched squeal under load. Buy VB-384G - V-Band Turbo Clamp 2000-2006 DURAMAX 15671559: Exhaust & Emissions - Amazon. At this point, a damaged or clogged coolant return line seems like the most likely suspect. First, its injectors use a different design and are externally accessible (not located under the valve covers). So, i have a 2003 GMC Sierra 2500HD with a 6. Leak location also matters even for some slow leaks. Find MagnaFlow Street Series Performance Exhaust Systems 15896 and get Free Shipping on Orders Over $99 at Summit Racing! MagnaFlow Street Series performance exhaust systems deliver the smooth, deep sound you want—and the wide-open performance power you need!. BD Diesel designs, creates, manufactures, remanufactures and distributes of a wide range of products including turbos, intercoolers, exhaust manifolds, transmissions, torque converters, injectors, injection pumps, suspension, engine shut down controls, throttle controls and exhaust brakes. With aluminum heads and an iron block, sooner or later a bunch of power and/or 100,000+ miles on a multi-layer steel design, you will encounter head gaskets issues. This article will arm the average Duramax owner with enough knowledge to begin to understand the normal operation of the fuel system. This creates a blue colored smoke which is passed down the exhaust system and then exits the car along with normal gases. White smoke is common on most of today’s automobiles, especially when the engine is cold - when you have just started it - and when it is cool or cold outside. These conditions may be due to cooling system leaks or an improper coolant fill procedure. Best Duramax Diesel Exhaust I have installed hundreds of aftermarket exhaust kits over the years, and there are some great manufacturers out there. Blue smoke out of the exhaust of 6. 6L V8 brought an improved injector design, variable geometry turbocharging and cleaner emissions to the table. I recently had dual exhaust installed on it (they sound sweet by the way). Duramax History, Lesson 1: LB7. Introduced in January of 2004, the RPO code LLY Duramax 6600 incorporates a number of significant technology changes. Excessive black smoke from the exhaust or excessive regenerations could be caused by a disconnected air duct after the Mass Air Flow (MAF) Sensor or a Charge Air Cooler leak. If you’re looking at modifying a high-mileage Duramax engine, make sure it’s in good shape to begin with. Smoke and Water Emissions. 6l Duramax has proven to be a reliable and durable choice for most owners. For example the bearings having to much slop in them. i found the solution by looking online, and am very impressed with them. Duramax History, Lesson 1: LB7. The amount of gas leaked into the intake manifold is only about 6 to 10% of the total, but it's enough to dilute the air/fuel mixture just enough to have a "cooling effect" on combustion temperatures. If you listen very carefully, sometimes you can hear a "hiss" sound that is the signal of a vacuum leak. 6L GM Duramax is the next generation in the fuel delivery system, resulting in a long lasting, efficient and quiet lift pump. The major concern with excessive noise coming from the exhaust system may in fact be sourced as a leak. ATLAS exhaust systems are the perfect combination of performance, fit and value. (Under 2 psi is critical, as you can damage sensors or valves or create new leaks with higher psi. With aluminum heads and an iron block, sooner or later a bunch of power and/or 100,000+ miles on a multi-layer steel design, you will encounter head gaskets issues. An external engine oil leak can drip onto hot engine and. If you have a cracked engine block, coolant from the water jackets can leak inside the combustion chamber, as well as leak into the oil pan. The technology changes introduced with the LLY address both of these forces. The exhaust manifold also seems pretty tight against the block as well except for the rear most bolt, there is a SMALL gap. The removal of extensive oil deposits can expose marginal or damaged oil seals that may then leak. duramax high idle llm. Sometimes it has a really rough idle. These seals allow the valves to move up and down, while providing a thin film of oil for lubrication. Upgrading your stock exhaust system to our 4" or 5" diameter diesel exhaust system will help lower Exhaust Gas Temperature (EGTs), while increasing horsepower and torque. Leaking valve seals result in blue-gray exhaust. I have a 2008 Duramax and I just got a new 5th Wheel trailer. Tip In cabin sound dampening material will not only reduce mechanical and sound vibration from the exhaust, it will also have the added benefit of reducing all external sounds, such as traffic, road noise or wind. A sudden ticking or tapping noise that is loudest when the engine is first started and lessens as the vehicles warms up may be an exhaust leak. If the vehicle is returned to idle during the cleaning process, the driver may notice a slightly different sound or a slightly elevated engine idle speed. Average repair cost is $2,190 at 47,150 miles. " This has been the death knell for many a vehicle over the years, as the cost of a fix for an older car is often more than the car is worth. So I just bought a 2004 gmc sierra 2500hd duramax and it has a strong idle smell, the truck runs good and doesn't blow out black smoke that I can see. I've noticed when I first start up my truck and go down the road I hear like a ticking sound on the passenger side for about 1 minute, then once it heats up and it expands I don't hear it any more. Their design allows for extra clearance for aftermarket up-pipes without compromising the exhaust flow. How to Tell If Your Duramax Diesel Turbo Is Gone? by Richard Rowe Introduced in 2001 as a joint venture between GM and Isuzu, the Duramax V-8 was the General's bid to one-up Ford and Chrysler's newest generation of powerful and efficient diesels. 2005 Duramax losing coolant no apparent reasons 3 Answers. Vacuum leaks may be revealed by the mixture bubbling up at the site of the leak. 3l z71 about two weeks ago and I couldn't stand the exhaust note/tone. A feather or cigarette paper glued to a piece of stick. don't be fooled by cheap pricing! bd diesel 1300030 apps noise isolator (94. Sorry if I’m wasting your time. 0 Powerstroke, 6. But under load at lower speeds and throttle positions, kind of sounds like when a big panel truck goes by under load and you hear that huge air rushing noise above the sound of the engine. A new sound coming from your exhaust system should never be ignored. To restate what a crank/no start is, it's when you turn the key and you can hear the engine moving but it's just not catching and running. Whether you need power and efficiency for towing, off-road, recreation, or racing, ATS Diesel Performance can meet your needs, quickly and at a reasonable cost. 5-2009 (LLY/ LBZ/ LMM) While the search for more power for your LLY, LBZ or LMM Duramax powered vehicle usually leads you down the path of exhaust, intake and tuner, one item that is often overlooked is the factory restrictive turbo direct pipe. (Under 2 psi is critical, as you can damage sensors or valves or create new leaks with higher psi. And since you have a flashing cell (which means you should not be driving it or getting into boost), what is the code?? Russ. Replacement and Performance Parts for 05-06 Jeep Liberty 2. Any one have a clue what it could be?.