Duramax Boost Leak Symptoms

In over 40 years of diesel combustion research, Baileys has seen, repaired and prevented just about every cause of injector failure, and in this post we have compiled some of the most common symptoms, causes and ways to prevent the premature replacement of your common rail injectors. Usually this will set a code. PDA View Full Version : Help on pressure test for boost leaks. 6 LB7 diesel pickup or are looking to buy one, here are some common issues and problems we have run into in our shop. Hydro-boost brake systems are self-bleeding if there is no other problem in the system. This 2002 LB7 Duramax has been a long time coming! More » The 2019 GMC Sierra Will Have a Carbon Fiber Bed. You will see no leaks with a pressure test as its not an external leak, did the pressure drop when you tested it though or did the pressure stay the same over say 5-10 minutes? if it drops that could be a sign of leakage. In 2004 GM switched from the LB7 model Duramax to the LLY model Duramax. The boost gauge - Some turbocharged vehicles are fitted with a boost gauge, which lets you know how much boost your turbo is producing (you can also fit one to your car if desired). Fuel injectors are quite sturdy and rarely need to be replaced, so individuals who plan on buying a new one should first try cleaning the current injector. NOTE: Whenever the Hydro-Boost is removed the power steering system must be bled. 2004 f-350 cc drw. Just last weekend while cruising at 65 mph the 10 lbs of boost suddenly will zero out, you can hear the turbo whine down, then it will wind back up to 10 lbs, then drop again, and come back up, and will. Excess boost level can compromise the engine’s structural integrity. How to test your truck for Boost leaks! This will be a quick run down of how to see if and where your truck is leaking boost. My hydro-booster recently started to leak power steering fluid from just behind the master. The Garrett GT3788VA variable geometry turbocharger is tucked deep in the engine valley at the rear of the engine and therefore removal is a somewhat extensive procedure. The most common symptoms of lift pump failure are slightly harder starting and low power. 3 IDI Motors), 7. Every time the key is cycled, the engine computer (PCM) runs a self-check to verify the Turbocharger Vane Control Solenoid and related sensors are working properly. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. If this is the issue, it's likely that you'll have to replace the wastegate hose. In stock form and even when substantially modified, GM's legendary V8 diesel can provide hundreds of thousands of miles of trouble-free use. I pressure tested the intake to 25 psi, and touched the hoses under the intake where I heard the leak. I think I may have messed something up when I unbolted the coolant line to the turbo, and maybe something is cracked internally inside the housing???? Or maybe a seal is worn out ? In other words, what could be wrong with my turbo if it's leaking coolant into the exhaust stream?. Try a couple things: Park over some dry pavement, with your truck running, and pump the brakes until a good amount of fluid has disappeared. NOTE: Whenever the Hydro-Boost is removed the power steering system must be bled. If the Y pipe is cracked would the boost pressure = 0 psi? I don't show any boost pressure and can't feel the turbo at all (no power). You might check the egr, I’m new to my duramax, but my wife’s x5 diesel had a similar intermittent limp mode, I cleaned the egr valve up, and later found a boost leak into the manifold, haven’t seen it since we fixed both of those. They read the codes as P003a (engine turbo boost controller) and P2563 (turbocharger vane control position sensor performance). [Archive] Page 7 Discuss the second generation (2004. The contact stated that the engine oil pan was leaking. Since there's not enough oxygen available to burn the fuel going into your engine,. If it is sooty, it could be a sign of a bad fuel pressure regulator. Remove the belt and grab the pulley. US Diesel Parts - FASS® Products - GM Duramax LB7 Air/vapor in diesel fuel is a common problem with any diesel vehicle where the fuel tank is located at a lower point than the engine. If the EGR cooler gaskets fail, or the cooler gets damaged for any reason, it can cause an exhaust leak to develop. This will either cause the engine to run rich or lean. I have exactly the same symptoms with my truck after I cleaned my FPR screen. Many versions of this engine have been produced in the following 15 years, but they were all built upon the original. Use this initial bleeding procedure whenever replacing or servicing any component in a hydro-boost system. How to clean a 6. If you had a boost leak you would be smoking, the bigger the leak the more smoke produced. 1) The ECU is limiting you to wastegate boost because it's detected a major problem and is trying to protect the engine. I live in MN and the temperature is 0*F but feels like -21*F my check engine light came on and the code read P0106 which says it the MAP sensor. 8's have mis-designed injectors - they're leaking fuel all of the time causing fuel in oil dilution, excessive regens, lost fuel economy, fuel knock, stabilitrac lights and misfires during cruise. Find out why diesel fuel injectors fail and how to avoid it as we see if the injectors are the problem. The leading community for owners of Cummins, Duramax, Powerstroke, and all diesel engines. There's an old saying that says "offer a great $5 part that installs in 5 minutes, and you'll sell a million of them. lately my truck has felt really sluggish. When a CV joint axle fails completely, it will render the car immobile, since the transfer of power to the wheels can no longer be completed. I check the brake fluid reservoir and both had plenty of fluid I did find one leak. Running A Diesel With A Bad Injector I recently had the fuel/boost cooler go bad on the engine. Exhaust leaks or Boost leaks, you can usually hear a boost leak as a high pitched squeal under load. DPFE Sensor and EGR Information. The manufacturer was notified of the failure. The Turbo Charging system is equipped with a Boost Pressure Sensor, which runs to continually send data back to the PCM. There are only a few parts to a traditional Can. 0 Liter Diesel Engines The VT365, also known as the 6. LLY- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. It cine from the master cylinder to what I believe is the steering pump or box. Replace old hydro-boost system due to power steering fluid leak. any ideas as our dealer in this small town is not to helpful, he wants $1600 for two injectors and likes to point out that I have a leaking oil pan. A spray pattern that does not match the OE injector’s spray pattern can cause driveability symptoms, higher emissions, starting problems and poor fuel economy. This case study used an aftermarket scan tool example, it shows the air leak PID, which is a built-in leak indicator. Its always a good idea to keep an eye on your oil level. 6 LB7 diesel pickup or are looking to buy one, here are some common issues and problems we have run into in our shop. Shop Intercooler Pipes for the GM Duramax 6. Slow Pedal Return: Slow pedal return can be caused by pedal linkage binding, a restricted booster hydraulic line, or an internal problem with the hydroboost unit. LMM- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. Another DIY Boost Leak Tester - Home Depot and AZ parts All of these parts can be purchased at Home Depot and Autozone. If boost is low, suspect boost leak/exhaust leak or broken wastegate. lately my truck has felt really sluggish. the p/s pump supplies the assist to your hydro boost unit which assists in power brakes. Before you start pulling apart the engine, it's usually a good idea to take a look at the service logs to see what the maintenance history of the car is like. In some cases, a leak near the vacuum booster or inside the vehicle shows signs of a bad master cylinder. so i was wondering if a boost leeak would cause this. Log your DAM, if this is less than about. Use scan tool to isolate one cylinder at a time. I don't know the exact reason, but I suspect Toyota did it for safety reasons, and this was in an 88 4-runner, so It may be different. If it moves, it's bad. GM Hydro-Boost units may be rebuilt. But, at Bar's Leaks, we specialize in offering car leak repair solutions that are fast, easy, effective and affordable. If it is sooty, it could be a sign of a bad fuel pressure regulator. Yes makes good boost. 5-10 LMM Forums > 07. This filter delete kit will replace your now useless fuel filter with a spin on canister that will allow fuel to flow freely into the engine, saving you even more money. There's an old saying that says "offer a great $5 part that installs in 5 minutes, and you'll sell a million of them. com membership. Any buildup of black “gunk” near a fitting is an indication it is leaking. Bad EGR valve symptoms vary and resemble problems in other engine systems. Diesel head gasket repair also often has to be done specifically at a specialty diesel engine shop or dealership which can charge higher labor rates which also will add to the cost and complexity of the job. Another symptom of an issue with the vehicle’s hydraulic brake booster is fluid leaks. Below are some common symptoms of a failing turbocharger. When it is cooled down, remove the EGR valve and inspect inside with a flash light. 6L Duramax L5P Engine? Tearing an engine apart and putting it back together can yield a lot of information about that powerplant, including how well or how poorly. Chevy and GMC Duramax Diesel Forum > Chevy / GMC Duramax 07. if you cant tell any change then it may be time to have the truck put in a ford scan toll to pin point what exactly it is. The vehicle was towed to a private mechanic where it was diagnosed that the oil pan was rusted and needed to be replaced. From 2001 to 2011, the Duramax engine has had a similar configuration, and with that, similar issues. 9L Cummins Trucks. 6L LB7 Duramax engine is white smoke at idle. Is it possible we all have the same exact leak? dont you think that at a 6-7 psi loss of boost somewhere you would here the leak?. If you find a plug in this condition, check the rest of them. Try a couple things: Park over some dry pavement, with your truck running, and pump the brakes until a good amount of fluid has disappeared. The parts list has color coded letter labels to match the diagram. Excess boost level can compromise the engine's structural integrity. Truck Master 44,172 views. MBM is strictly a wholesale distributor and manufacturer. If the Mazda is diagnosed with a head gasket leak then we recommend using 8 – 10 ounces of the BlueDevil Head Gasket Sealer. If I crack loose the fuel filter top and then start it and then tighted it up when I get fuel coming out, it runs like a scalded dog for about a day or two, then it's back to missing again. My friend noticed a lot of fluid leaking. A faulty exhaust manifold gasket will produce an exhaust leak that will sound like a hissing or tapping sound coming from the engine. **This part is currently on Backorder as of 7/5/2019** Use this Intake Leak Pressure Tester to make sure you get 100% performance from your turbo. You will feel the leak if it's there. 5 -'10 Trucks ONLY Solves most P1093 and P0087 codes. From 2001 to 2011, the Duramax engine has had a similar configuration, and with that, similar issues. Boost leak or. Ok so I had my truck put on a diesel computer yesturday and it said there was low boost pressure to the Turbo, well I was told my up pipes could be leaking causing low boost, plus I just don't have any power in the truck when pulling my pontoon, I was also told that if the boost pressure was right and my turbo got to wind up all the way that when I was going down the road and get on the pedal. Is this the injectors or piston rings? - Chevrolet 2001 Silverado 2500HD question. the turbo spools faster cause there is no resistance of pushing the air. Knowing what to look for can save you a lot of money if the problem is caught early, and taking care of the problem before it becomes worse can reduce both downtime and overall expense. This provides the feedback loop between the requested level of turbo charger boost of the PCM and the actual level of the Turbo Charger Boost. a boost or vacuum leak is pretty much the same thing. 2006 lbz coolant leak at the rear of passengers side. Hydroboost brake units use power steering pressure instead of engine vacuum for brake assist. Soot-laden EGR manifolds affect both idle quality and fuel economy. Helps Solve P0087 and P0193 Codes on 2004. It assist in pressing the master, basically helps amplify the pedal input you give by pressing the brakes. Pressure up the coolant passages and see if it leaks. OC DIESEL offers Professional Diesel Performance Part Installation, Service, Diagnostic, Routine Maintenance & Repair - Specializing in all diesel vehicles, including 94-02 Dodge 5. This will be most noticeable during acceleration or slowing down, as these are the times when there is the greatest difference between atmospheric pressure and the pressure within the manifold. Use this initial bleeding procedure whenever replacing or servicing any component in a hydro-boost system. Replace old hydro-boost system due to power steering fluid leak. A boost leak is a hole in the intake track between the intake manifold and the compressor outlet of the turbo. The brake booster is just that, a booster. GM joined forces with Isuzu in 2001 to release the first 6. Unlike the galvanized steel fuel tanks of the past, the Duramax has a high density polyethylene fuel tank which makes it impossible for corrosion to cause leaks. If left broken, it can become a much more serious issue that calls for a much more pricey solution. The Supra's long intercooler piping path makes it fairly hard to find the leak and can be a daunting task. This method is easy to do and is a good "test" if you have any of the three symptoms above. The engine's CP3 high-pressure fuel pump is capable of drawing fuel from the tank without the aid of an external lift pump as long as the system remains primed. 6l Duramax has proven to be a reliable and durable choice for most owners. as for the spongy pedal they all feel like that when sitting still. The brake booster is just that, a booster. they filled with wrong antifreeze and whala I get silicone sludge throughout the whole engine blocked heater core. the pedal comes back when moving. Many versions of this engine have been produced in the following 15 years, but they were all built upon the original. Bad EGR valve symptoms vary and resemble problems in other engine systems. 2006 lbz coolant leak at the rear of passengers side. Symptoms of a bad master cylinder include external and internal leaks. LBZ- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. How to check for Boost Leaks (Every Duramax Owner. The car started to work great, boost is great (I've checked with computer, the expected boost value is the same as measured while driving the car), but the oil consumption stays the same. I did it myself, not much blood, only a couple of cuss words. KD Boost Valve for the 2001-2004 LB7 Duramax 6600 There's an old saying that says "offer a great $5 part that installs in 5 minutes, and you'll sell a million of them. A: Diaphragm - The diaphragm has a seal that keeps the boost pressure from escaping. Upgrade to our mandrel bent and tig-welded hot and cold side aluminum pipes which are more durable, dissipate heat better than plastic, and brighten your engine compartment. 5-2010 Duramax trucks. we offer an assortment of ARP head studs for those of you who have reached that level of boost in which the. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. 9L Cummins Trucks. Here you will learn how to properly use your boost leak tester. Sinister Diesel carries intercooler boots from the best names in diesel performance including AFE, Mishimoto, Deviant, S&B, BD Diesel, Alliant Power plus our very own Sinister Diesel kits. 2L diesel engine was introduced in the 1982 model year GMC and Chevy C/K pickup truck and full-size SUV lines. The symptoms of stuck vanes are lack of power, black smoke and hesitation on acceleration. what PSI are you sending through it? i made one similar to the RDR with some minor add ins like digital press regulator to know exactly what's being fed. Engine vacuum leaks are commonly associated with the following symptoms, but keep in mind that this is not an exhaustive list. This filter delete kit will replace your now useless fuel filter with a spin on canister that will allow fuel to flow freely into the engine, saving you even more money. You lay the hammer down, but notice the car doesn't have what it used to. An exhaust leak may be heard as an audible hissing or tapping sound coming from the front of the vehicle. A note to think about: on the factory turbo, in almost all cases the boost reads 27-28 psi of boost. Use this initial bleeding procedure whenever replacing or servicing any component in a hydro-boost system. He is telling me I have a leak somewhere either in my intake, clogged air filter or my MAF sensor is either going bad or needs to be cleaned. 6L LLY Duramax With Sinister Replacment EGR Cooler (With 1 C Series and 1 A Series Head Gaskets) Upper Head Gasket Set without Studs Details about ARP Studs w/ Mahle Head Gasket Set Grade 'C' Head Gaskets - Duramax LLY LBZ 6. I think I may have messed something up when I unbolted the coolant line to the turbo, and maybe something is cracked internally inside the housing???? Or maybe a seal is worn out ? In other words, what could be wrong with my turbo if it's leaking coolant into the exhaust stream?. 6L LB7 pickup trucks. The car will run fine for several miles, whether its easy driving, or hard acceleration runs. All hoses are heavy duty silicone construction and will help to prevent leaks and hoses blowing off. 030 Then Pressure test your car and fix your boost leaks. 6 Duramax Engine 4th May 2015 If you have a 2001-2004 Duramax 6. Wärtsilä Common Rail System for Medium Speed Engines (Source: Wärtsilä) Figure 20. I own a '04 1/2 2500HD duramax/ally 4x4 that has a lift, larger tires, and a power programmer and I get 16 - 18 mpg with a combination of city/highway driving. TOAD Pro good as mechanic. If there is a hole in this part of the intake track, boost pressure will leak out, and the MAP sensor (boost. 7 Powerstroke to discuss items that you should look out for and expect to deal with over time. LLY- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. 6L Duramax is one heck of an engine. any ideas as our dealer in this small town is not to helpful, he wants $1600 for two injectors and likes to point out that I have a leaking oil pan. This portion of the intake is under pressure when the engine is loaded. 2006 lbz coolant leak at the rear of passengers side. com [email protected] The boost controller utilizes various bypass valves, wastegates, and blow-off valves to maintain the desired level of boost pressure. Diesel Duramax Photo Gallery - Pictures posted by the DieselPlace. Yeah i hit fuel cut at like 4500. New head gaskets are relatively inexpensive and good insurance against a blown head gasket in the future. LLY- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. ]Steering wheel is tight,so we bleed (remove the air) on the power steering fluid,but steering wheel still tight. 030 Then Pressure test your car and fix your boost leaks. The engine runs fine other than the fact of th elacking boost. 5, and exhaust brake works fine. I check the brake fluid reservoir and both had plenty of fluid I did find one leak. In over 40 years of diesel combustion research, Baileys has seen, repaired and prevented just about every cause of injector failure, and in this post we have compiled some of the most common symptoms, causes and ways to prevent the premature replacement of your common rail injectors. keep the engine off and make a pvc cab to fit the air filter tube and pressurize the system watch it cause your compressor is 100-110psi. SHOP CUMMINS 3957290 Injector Return Check Valve (03-07 5. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. If its still holding pressure by morning on a cold engine there is more than likely not a leak either. 6L LB7 Duramax engine is white smoke at idle. Another issue of a problem with the EGR cooler is exhaust leaks. Unfortunately, the results may not always be what they seem. Beginning in model year 2011, GM made some big changes to the Duramax's fuel system. Pure Diesel Power offers one of the most complete product listings in the diesel engine parts industry, ensuring that, no matter what you need for your diesel truck, you can find it on our site. If you end up replacing your fuel pressure. If you're losing brake fluid, but don't know where it's going, there's a good chance it's leaking from the MC into the booster. It's excessive oil pooled up in the intercooler that's bad. Symptoms & Causes. In most cases the solenoid will fail open allowing boost pressure to pass through the solenoid. Forgot to mention: Sometimes the haze @idle when cold is slightly less but haze @idle when hot it's pretty much always the same. 6 Duramax Common Issues, Problems, and Fixes GMC and Chevy Duramax LB7 6. com membership. And I was so psyched to have someone sharing my symptoms! Well, I'll do the leak check. Have a drain pan ready to catch and discard leaking fluid during disassembly. Sprinter Intercooler hoses are prone to leaks. In this post I will try to describe all my experience diagnosing and fixing boost leaks. There is a procedure describing this in a forum thread, as well as an article, but I don't have the time to dig it up right now. Another problem is if the air pipes to and from the inlet, inter cooler and turbo leak due to damage or loose clamps. Replacing the Vacuum Line An easy way to test for an FPR leak in the vacuum side is to replace the vacuum line going into the FPR with a length of clear tubing. Duramax LLY Overheating and Thermal Feedback Primer I love what I do, and that is a blessing. VGT turbo sticking and/or not operating properly. KD Boost Valve for the 2001-2004 LB7 Duramax 6600 There's an old saying that says "offer a great $5 part that installs in 5 minutes, and you'll sell a million of them. If replacing the power piston/accumulator, dispose of the old one as shown. The LML Duramax was introduced in 2011, using 60% newly-designed components, compared to the previous generation Duramax. The manufacturer was notified of the failure. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004. But seen this exact thing before. IMPORTANT NOTE: Most late model 7. 1) The ECU is limiting you to wastegate boost because it's detected a major problem and is trying to protect the engine. And since you have a flashing cell (which means you should not be driving it or getting into boost), what is the code?? Russ. lately my truck has felt really sluggish. The Turbo Charging system is equipped with a Boost Pressure Sensor, which runs to continually send data back to the PCM. Let me step back and explain a very simple way to understand how the solenoids direct air, I think it is important to know this as it will help you trouble shoot solenoid problems in the long run. Find Expert Advice on About. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. Since there's not enough oxygen available to burn the fuel going into your engine,. Exhaust leaks definitely do not help spool up. I was sure this was an exhaust leak before the tubro, and searched forever to find it. Take for instance a blown headgasket repair, the labor for both headgaskets on a Duramax will be around 35 hours compared to a Ford 6. 5 diesels turbo and non-turbo from 1992 through 2005. Engine vacuum leaks are commonly associated with the following symptoms, but keep in mind that this is not an exhaustive list. The boost gauge - Some turbocharged vehicles are fitted with a boost gauge, which lets you know how much boost your turbo is producing (you can also fit one to your car if desired). Then, they will remove the turbocharger to check it thoroughly. Kit 50 Hydro-Boost Repair Kit (Mostly Rubber) about $40 IIRC. When you are under boost log the measuring block and graph it in excel. DuraMax is particularly handy if a man suffers from a venous leak or thin arteries or vessels that constrict blood flow to the penis tissues. Besides routine "CO presence in coolant" test procedure and other similar methods, this. Both of those repairs are fairly simple with simple hand tools. You will notice a sharp dip under pressure that will slowly rise and dip again. Log your DAM, if this is less than about. See what causes these high pressure injectors to fail in this month's issue of Diesel Power. Fuel injectors are quite sturdy and rarely need to be replaced, so individuals who plan on buying a new one should first try cleaning the current injector. It is located on the driver's side, inside the frame rail and in front of the rear axle. Designed as a diesel engine from the ground up by the Detroit Diesel Division of General Motors, the original 6. This will either cause the engine to run rich or lean. 5-2005 LLY) of the 6. Accumulators on the hydroboost I'm using the caveman c-clamp method of compressing the accumulator so the lock ring can be removed. Boost leaks can also cause bad gas mileage, lack of power, a whistling sound, a squealing/screaming sound, unstable boost and boost spikes. Use scan tool to isolate one cylinder at a time. If you're losing brake fluid, but don't know where it's going, there's a good chance it's leaking from the MC into the booster. The AFE 42-14012 DFS780 Fuel System with Part-Time Boost Activated Operation for your 2001-2010 GM 6. keep the engine off and make a pvc cab to fit the air filter tube and pressurize the system watch it cause your compressor is 100-110psi. Connect all power steering hydraulic lines (fluid pressure, steering gear and return) to the Hydro-Boost. Can you hear your in-tank lift pump running while cycling your ignition key to the on position? If it is weak or failing the CP3 injection pump may be fighting to pull fuel through the lift pump until higher rpms are obtained. So when you hear those warning noises, or are told that your CV axle boot is leaking, it is a good idea to get the axles replaced as soon as possible. Purge valve boost leak. Symptoms Of A Bad Egr Valve. This avoids the risk of uncontrolled injection if the control valve or injection nozzle is leaking. My '02 had a cracked pancake pipe (between the turbo and intercooler) which leaked more as boost increased - enough to cause low power, but not bad enough to throw an underboost code. The brake booster is just that, a booster. An exhaust leak may be heard as an audible hissing or tapping sound coming from the front of the vehicle. 6 LB7 diesel pickup or are looking to buy one, here are some common issues and problems we have run into in our shop. 3L intercoolers with plastic tanks use 3x3-1/4"x 8" long hose for both sides and the older units with metal end tanks use a 3"x3"x8" long on the drivers side and the 3"x3-1/4"x8" on the passenger side. problem started with a bad plastic tank to core seal on the radiator kids overheated it. Some of the most common causes of low fuel rail pressure can be a dirty fuel filter, leaking fuel filter head or a cracked water separator,. Any buildup of black “gunk” near a fitting is an indication it is leaking. Search For a Specific Car Problem. They will sometimes leak fluid into the power brake booster, but not always. It should be still covered right? GM-Tech, the bulletin you posted describes the symptoms to a tee, thank you, you have been invaluable on this site. Use this initial bleeding procedure whenever replacing or servicing any component in a hydro-boost system. Boost Leaks Turbocharger boost leaks and turbo malfunctions are probably the greatest contributors to excess engine smoke. You lay the hammer down, but notice the car doesn't have what it used to. A plugged DPF can cause a turbo failure by forcing exhaust under excess pressure around the turbine shaft seals. The brake booster is just that, a booster. Find Expert Advice on About. Remove the belt and grab the pulley. 6L Duramax Diesel. A loud whining noise, excessive oil consumption, loss of power, and a vehicle that smokes can be symptoms of a failing turbo. The models involved are 2011-12 Chevrolet Silverado HDs, Silverado LDs, Suburbans, Tahoes, Avalanches; GMC Sierra LDs, Sierra HDs, Yukons, Yukon XLs; and Cadillac Escalades, along with ESV and EXT versions. 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. 8's have mis-designed injectors - they're leaking fuel all of the time causing fuel in oil dilution, excessive regens, lost fuel economy, fuel knock, stabilitrac lights and misfires during cruise. -There is no vane position sensor and the system ignores EBP on the 03-05 models so if boost is low the PCM tells the vanes to close in order to create more turbo boost (MAP). If you find a plug in this condition, check the rest of them. EGR and or MAF problems or intake leaks after the MAF sensor. 6L Duramax is one heck of an engine. Now that you know the diesel blown head gasket symptoms, how to go about testing for a broken head gasket, and even the cost to get it fixed you are now equipped with more information on what to do if you think you have a broken head gasket. Why VGT Turbo's Fail—And How You Can Prevent It. The vehicle was repaired on three occasions but the failure recurred. As an example, an idling Duramax will flow approximately 37 g/sec of mass air with the EGR off. Symptoms of these conditions include illumination of the service engine soon (SES) light, low engine power, hard start, and/or fuel in the crankcase. Turbo boost leak testers for all makes and models. The green coated injector lines are more susceptible to leaks versus the polished steel colored lines. Mitsubishi, Dodge, Audi, Nissan, for custom turbo kits, Garret, Borb Warner,. I check the brake fluid reservoir and both had plenty of fluid I did find one leak. ask scottsjeeprolet he has made one and has pics of it. 2) The ECU is trying to run target boost but isn't hitting it for some reason. In most cases the solenoid will fail open allowing boost pressure to pass through the solenoid. And it has a 14b, 550cc, flashed ecu (99 ecu) has no anti lag 2step and professionally tuned, hard ic piping, new plugs, 190pump, mbc but running stock boost right now, turbo back and o2 dump. KD Boost Valve for the 2001-2004 LB7 Duramax 6600 There's an old saying that says "offer a great $5 part that installs in 5 minutes, and you'll sell a million of them. Before you start pulling apart the engine, it's usually a good idea to take a look at the service logs to see what the maintenance history of the car is like. White smoke coming out of tailpipe. And when replacing the turbo manifold gasket use a straight edge or file to see if you turbo hotside face is warped and check the exhaust manifold too. This filter delete kit will replace your now useless fuel filter with a spin on canister that will allow fuel to flow freely into the engine, saving you even more money. My first thought was bad wg actuator but it seems fine, also no shaft play with turbine. The parts list has color coded letter labels to match the diagram. The engine runs fine other than the fact of th elacking boost. I heard a boost leak so I got a boost leak tester and found 2 or 3 leaks. Also possibly affected are 2007-14 vehicles repaired with defective parts. P0045 is the code for Turbo/Super Charger Boost Control Solenoid Circuit/Open. Using a rubber mallet and holding the pump shaft in a vise, tap off the housing and/ or gently pry with a small flat screwdriver. The symptoms are a "stumble" and what feels like an erratic loss of power when cruising around at partial throttle. My friend noticed a lot of fluid leaking. Turbo boost leak testers for all makes and models. Common Issues and Problems We See In The Shop With The LB7 6. Change the channel Select Site Singletrack Snow Singletrack Tech Singletrack Charged GritCX. The Turbo Charging system is equipped with a Boost Pressure Sensor, which runs to continually send data back to the PCM. 6 Diesel Common Issues and Problems If you have a 2001-2004 Duramax 6. Fluid leaks. How to quickly diagnose, repair, and info on symptoms and causes of a P0046 code which means that the turbo or supercharger boost control circuit has a range or performance problem. You will notice a sharp dip under pressure that will slowly rise and dip again. One of the big kickers was the replacement of the long standing, tried and true CP3 injection pump in favor of a lower output CP4. Symptoms: Loss of Power, Stalling, Turbo Lag, Bad Fuel Mileage, High Idle, Rough idle, Rich Condition, Car or Truck is Slow. Another DIY Boost Leak Tester - Home Depot and AZ parts All of these parts can be purchased at Home Depot and Autozone. Difficulty Level - 5. What is a turbo resonator? A. problem started with a bad plastic tank to core seal on the radiator kids overheated it. Exhaust leaks or Boost leaks, you can usually hear a boost leak as a high pitched squeal under load. 6 duramax diesel Engine has a lot of power but when I step on the gas it blows a - Chevrolet 2001 Silverado 2500HD question Search Fixya Press enter to search. The most often leak occurs at the fittings where hoses attach to hard pipes or the intercooler. This case study used an aftermarket scan tool example, it shows the air leak PID, which is a built-in leak indicator. 5, and exhaust brake works fine. Replace old hydro-boost system due to power steering fluid leak. The symptoms are consistent with a boost leak. A while back I searched for a solution to rid me of the boost leak that plagues so many LB7 owners time and time again so I figured out a way to cure it for good.