Lmm Boost Leak

Improper operation, noisy system. then your boost. Our precision CNC machined bridge section allows for maximum efficiency, as well as a perfect fit every time. 8T and received a message that I had an intermittent boost leak. I just picked up a 2010 6. hsp diesel max flow y bridge duramax. The most common situation that I see that can cause issues with the MAP sensor is a vacuum leak. Even the smallest of leaks (1-3lbs) can cause tremendous loss of low end, slower tubo spool, and higher EGT's. All Duramax VGT Turbo's Need to use stock LBZ/LMM plastic mouthpiece (intake adapter) or better for proper performance and durability on LLY trucks and newer. If it doesn’t leak, all you are out is the cost of the test. 6L Duramax LMM. 6L LB7 2001-2004. If there are no leaks you should feel a significant amount of pressure build-up and NO smoke. We were taking off from a stop and I rolled into it and BAM. :/ Then a Go fast bits DV + purchased because the B version that was original on it so leak was already a basket. While driving down hill i start to hear what sounds like a boost leak. The Mighty Car Mod team will show you how you can make a homemade boost pressure tester for a turbo car, all with parts you can get from your local hardware store, just for about ten bucks. This portion of the intake is under pressure when the engine is loaded. The average power steering pump puts out from 800psi to 1400psi. Symptoms of an intake manifold gasket leak include poor engine performance, engine overheating and coolant leaks. Checking for leaks 4X during dynamometer testing, including blacklight leak testing; Duramax Complete format engines are spin-tested for proper oil pressure, each cylinder undergoes compression testing and each engine is blacklight leak tested. That’s because hot air puts the engine into. 6L Duramax LB7 at Unbeatable Prices - Fast & Free Shipping - Expert Service - Visit OC DIESEL Today. Even the smallest of leaks (1-3lbs) can cause tremendous loss of low end, slower tubo spool, and higher EGT's. LMM boost leak. if its fine with that test. The green coated injector lines are more susceptible to leaks versus the polished steel colored lines. 5 Stage 1 VGT Turbo For 04. turbo boost sensor and make sure it is clean. 6L Duramax Turbocharger for GM Duramax LMM engine applications. Every single part, down to the nuts and bolts, is. We finally have the tool needed to locate all boost leaks, no matter how small in minutes. 6L Duramax V8 Engines, Chevy/GMC. Fuel leaks would not cause oil contamination at all. This will result in a drop in the power and restricted RPM, making driving near impossible. This is a great tool to use anytime you have opened the system for anything. Intake Pressure/Boost Leak Tester, 4. The duty cycle of the EPC solenoid causes the boost sleeve to wear quickly. Unlike the factory design, the hydraulic hose is no longer permanently attached to the tubing sections, one of the major downfalls of the stock lines. 3L by KB Diesel Performance. hsp diesel max flow y bridge duramax. if it creates bubbles then that means your exhuast is leaking into through the seal. com or go on ebay. Shop Powerstroke diesel performance parts. The P0299 DTC code refers to a condition where the PCM/ECM (powertrain/engine control module) has detected that the bank "A" or single turbocharger or supercharger is not providing a normal amount of boost (pressure). GMC 3500 Sierra 2001-2004 LB7 Boost Duramax 6. K-Seal is the number one coolant leak repair, use to fix your head gasket, block, radiator, heater matrix or water pump. 6L Duramax, these diesel performance injectors are a great solution to upgrade your power at a great price. max boost psi for stock LMM turbo I looking at getting some new gauges for the 07. I don't want to loose. On vehicles with onboard diagnostics, the leak often causes the check engine light to illuminate. 2 inch Design with Heavy Duty Bellows offer Quicker Spool-up, Lower EGT. Click here to view this document as a PDF (right-click to download). I have had all that stuff apart and wonder if I lost a O ring. GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The Pusher LMM-BT Max HD Charge Tube for your 2007. You and your cigar may have to crawl under the car to observe any smoke that might be leaking out of the lower part of the manifold or its runners. On a electronic 94-95 you need a power chip to raise boost and add fuel. If you see bubbles around any of the couplings or anywhere on the intercooler, found in front of the radiator, then you have a boost leak and not a bad turbo. Learn More. Boost Leak Detector (1). Even the smallest boost leaks can affect turbocharger and engine performance, so they’ll want to be taken care of quickly to ensure you’re. Boost Leaks Turbocharger boost leaks and turbo malfunctions are probably the greatest contributors to excess engine smoke. Need help with Fuel Rail Pressure at WOT on LB7 with Max Effort Tune (+230 HP) PPE boost increase valve and that if my lines were bad I'd actually see a leak. 6L Duramax Diesel. The green coated injector lines are more susceptible to leaks versus the polished steel colored lines. Rather than check the springs integrity, they are replaced with a new one. 5 - 2010 Turbo. Increase Performance and Flow with our upgraded 3" Max Flow Bridge. 00 BD Diesel 1057025 Electronic Turbo Boost Fooler For 99-03 Ford Powerstroke 7. This line is located on the passenger side of the engine compartment and runs over the intercooler tube right behind the oil fill tube. The truck should have the red. I pulled over to check all the. The ECM uses the MAF to determine max fueling, so if there is a leak in the intercooler plumbing it will give max fuel even though the engine isn't getting it(it only watches airflow and not boost). Make sure to drive the vehicle in order to check the operation of the Boost / Vacuum Gauge. 5Injection line corrosion is a huge problem on the LB7 Duramax diesels - especially in northern states. There were several reasons for the change: the injectors changed design and were now on the outside of the valve covers, providing easier access, and the EPA was tightening down on emissions standards for diesel engines in order to reduce NOx gas. Yes makes good boost. Research has shown regular strength training has the potential to help boost your testosterone levels, not just benefit the testosterone you have. I was encouraged to learn last year that GM had been running 2007 emissions qualified prototype Duramax 6600 diesels for quite some time. LBZ/LMM intake runners + our custom intercooler pipe must be used. Opti-box is an O-ring sealed carry case for your 8oz bottles. When an LB7 injector begins to leak, you'll notice the truck hazing at idle and you'll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. DieselSite Turbo Leak Tester-Ever wonder if you have a boost leak or you know you have one, but can't find it? We finally have the tool needed to locate all boost leaks, no matter how small in minutes. PPE Boost Increase Valve for GM Duramax 6. Follow the "fuel leaks inside of engine" GM service. In minor leak cases, there will be a lag in acceleration and an extra turbo whine. LLY- At the bottom of the passenger side intake housing. Includes key design features, engine specs, horsepower/torque ratings, & more. This one is fairly common and unfortunately a huge pain in the butt to change. Chevy Silverado and GMC Sierra Duramax Diesel Questions. Turbo Vane Position Sensor for stock turbo on 2004 - 2016 Chevy GMC 6. We help everyday drivers fix car leaks related to the cooling system, head gasket, engine oil, power steering, transmissions, and more. Extreme failure can result in holes in pistons. At this time, there are five GMSPO filters that the dealer may encounter. Possible boost leak If this is your first visit, be sure to check out the FAQ by clicking the link above. 6L Duramax L5P is an entirely new powerplant. High Pressure Oil Leak, Ford 6. The stock boots WILL leak air and oil. 6 Duramax Common Issues, Problems, and Fixes GMC and Chevy Duramax LB7 6. Most boost control systems waste air by venting a significant amount of air, even many factory boost control systems waste available exhaust energy during this crucial spool-up period. Shop Boost Pressure Gauges for your 2001-2004 GM 6. 5-2009 Chevy 6. Good morning, good members, I have owned a gti that I have imported from luxembourg for 3 months. "They also develop leaks through the nozzle, which will show up as smoke and haze while at idle. Lb7 engines are notorious for injector,and head gasket failures poor GM design on both. LMM boost leak. 5 to 2006, and was made with 310 hp and 605 ft. We help everyday drivers fix car leaks related to the cooling system, head gasket, engine oil, power steering, transmissions, and more. Extreme failure can result in holes in pistons. What is funny, is that no one shows up knowing they had a boost leak. We have carefully engineered a process that allows us to maximize performance and even stay within the price range of a used or salvage engine. 5 Stage 1 VGT Turbo For 04. The Driven Diesel Power Steering Hose assemblies are not only manufactured from superior materials, but have also been built to be easier to install and serviceable in the unlikely event of a leak. Use scan tool to isolate one cylinder at a time. Extreme pressure damage due to worn PR bore, new PR valve restores proper pressure regulator function, new boost valve adds over-boost protection. The stock boots WILL leak air and oil. Turbo Boost Leak Testers, Inc is dedicated to making boost leak testers -Thats it! This is an important tool every turbo car owner needs in their arsenal of tools. Turbo control systems can use a number of approaches to help compensate for a boost leak. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. For those looking for a more simplistic operating turbo for higher horsepower applications, we have kits to eliminate the variable vane technology. Even the smallest boost leaks can affect turbocharger and engine performance, so they'll want to be taken care of quickly to ensure you're. This is something you might not see or notice unless you are towing alot. Perform the brake hydraulic leak test. Lb7 engines are notorious for injector,and head gasket failures poor GM design on both. Buy LB7 Injector Lines 6. XCELERATOR Economy Xcelerator - GM 6. :/ Then a Go fast bits DV + purchased because the B version that was original on it so leak was already a basket. LBZ- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. A common issue with the GM 6. free shipping on orders over $150! shop now for duramax lmm crate engines ! long block. If boost is lower than expected suspect boost leak/exhaust leak or failed EGR. 5 LMM and would like to know the Max boost psi the stock turbo will push? Efi live, cold airtake, exhaust, EGR blocker plate and fuel rail upgrade. Turbo Boost Leak Testers, Inc is dedicated to making boost leak testers -That's it! This is an important tool every turbo car owner needs in their arsenal of tools. 05 H&S Mini Maxx DPF EGR Delete Tuner For Cummins Duramax Powerstroke Diesel 109003 H&S Mini Maxx. It unbolts really easily and is easy to tap as well. 5L (tt) engines. For those looking for a more simplistic operating turbo for higher horsepower applications, we have kits to eliminate the variable vane technology. Change your coolant overflow tank cap. need help with my lly Hey everyone its been a while since I have used hpt and never for a diesel. Use scan tool to isolate one cylinder at a time. If your turbo boost drops quickly or rises quickly without the application of the throttle, it could be caused by a blockage in the wastegate or a broken wastegate hose. free shipping on orders over $150! shop now for duramax lmm crate engines ! long block. Our precision CNC machined bridge section allows for maximum efficiency, as well as a perfect fit every time. Mitsubishi, Dodge, Audi, Nissan, for custom turbo kits, Garret, Borb Warner,. Goes into reduced engine power from under/ over boost when it's cold. Poor Man's Vacuum Leak Detector. In many cases, 3-4psi leaks are very common. Buy LB7 Injector Lines 6. The factory programming is set up to reduce engine power in the event of excessively low/high fuel pressure to avoid injuring the engine. Good morning, good members, I have owned a gti that I have imported from luxembourg for 3 months. Lb7 engines are notorious for injector,and head gasket failures poor GM design on both. The valve is 944. Most boost control systems waste air by venting a significant amount of air, even many factory boost control systems waste available exhaust energy during this crucial spool-up period. I tried to smooth out the stock tables, for fuel quantity, boost, pulse widths, and timing. The truck should have the red. Exhaust leaks or Boost leaks, you can usually hear a boost leak as a high pitched squeal under load. The HSP LLY Max Flow Bridge to HSP Cold Side Intercooler Pipe is designed to mate to the HSP 3" Cold Side Intercooler Pipe in your 2004. So I spoke with one of the techs, he said in theory, even if the EGR was blocked, the boost could blow past the valve and pressurize the system (in the event the EGR cooler is bad). Our bridges have been pressure tested to over 100 PSI to ensure your truck can perform to its highest potential. Turbocharging only really became common practice in the 1960s and 70s; turbos drastically increased power by shoving more oxygen into the motor and allowing it to burn more of the fuel. 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. 05 H&S Mini Maxx DPF EGR Delete Tuner For Cummins Duramax Powerstroke Diesel 109003 H&S Mini Maxx. As an added bonus, this boot kit will keep those who put out higher than normal boost numbers from "blowing boots". This will result in a drop in the power and restricted RPM, making driving near impossible. Going from the LB7 to the LMM was a definite change. Just raising boost alone does nothing, it just adds air! No hp gain!! You must also add fuel at the same time as raising boost to make hp. A common issue with the GM 6. The key to turbocharging is to maximize and control the boost pressure over as wide a field of engine operation as possible. On duramaxes very seldom will you burn coolant or get water in the oil with a blown head gasket. quick and easy way to find out if your turbo seal is done. The P0101 is a good indicator yuou have a boost leak though. Shop Powerstroke diesel performance parts. This kit completely replaces the entire EGR system and can be installed in 6-8 hours without removing the intake manifold. To eliminate your intake leaks, simply attach this Intake Leak Pressure Tester to your turbo inlet and apply compressed air through the standard tire valve stem. When the stock tune up is plugged in the turbo spools slower and the leak sound is MORE apparent as you are going slower and taking longer to build boost. Higher vane loads and lower max boost is the result. I just picked up a 2010 6. will my engine management light go off when the above problems are fixed? please give me as much info as you can. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. 5-2005 LLY was the first model Duramax to be equipped with a Variable Vane Turbo (VVT). The boost bypass actuator solenoid has two vacuum lines and a two wire plug right above the lines. Our engines are Duramax Long Block and range from 01 – 10 Chevy builds. Additional Information. Another DIY Boost Leak Tester - Home Depot and AZ parts All of these parts can be purchased at Home Depot and Autozone. Even the smallest of leaks (1-3lbs) can cause tremendous loss of low end, slower tubo spool, and higher EGT's. could this cause the problem i described above? also failed on a insecure steering rack and a upper suspension arm has excessive play on a ball joint. Could be the turbo but I would check over everything first. Use scan tool to isolate one cylinder at a time. Boost Leak Detector (1). Have lb7 leaking fuel into the oil after injector change from DCP (diesel care and performance) Ran with valve covers off and can't see leak Ran with die in the fuel and right away fuel in oil. PPE Boost Increase Valve for GM Duramax 6. Same about of fuel as being I changed charger. WILLIAMS October 31, 2015 at 3:58 am. Note: The Boost / Vacuum Gauge will only read positive pressure while under a load. turbo boost sensor and make sure it is clean. The P0101 is a good indicator yuou have a boost leak though. The common rail injection system used in the LB7 Duramax engine allowed General Motors to double the power output of their new diesel engine and fuel economy nearly doubled. Description. Air lines can have leaks also. Lb7 engines are notorious for injector,and head gasket failures poor GM design on both. What the P0299 code means The P0299 code indicates that the Turbo or Supercharger "A" has excessively low output. When a supercharged or turbocharged vehicle is in boost, the pressure inside the manifold is trying to push fuel back into injector, resisting the flow and decreases the effective fuel pressure below that of the rail. I like that it is very quite. Every single part, down to the nuts and bolts, is. Turbo Boost Leak Testers, Inc is dedicated to making boost leak testers -That's it! This is an important tool every turbo car owner needs in their arsenal of tools. Buy Torque Solution TS-BLT-BILLET Boost Leak Tester Universal: Covers - Amazon. When an LB7 injector begins to leak, you'll notice the truck hazing at idle and you'll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. 3L BD Diesel 1057025. Question: I've heard this is a boost leak. a loud pop and a lot of whistle. 6 LLY fuel filter, (3/4 of an inch longer then the LB7 filter) the "Black Line" short fuel filter, a white step can fuel filter, and a blue step can filter. 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. Water tends to collect inside the nut at the injector end of the line causing rust to form. All aFe POWER exhaust systems come with OE style bayonet hangers, premium band clamps for a 360 degree seal, OE style flanges, slotted or swedged ends wherever possible for a leak free seal, free-flowing muffler, and. I have been making boost leak testers for years. There is the original short LB7 fuel filter, the original 6. The enormous amount of airflow restriction caused by the sharp lip and the narrow "throat size" of the LLY mouthpiece forces the turbocharger compressor to work extra hard to deliver the air pressure and volume demanded by the ECM. This line is located on the passenger side of the engine compartment and runs over the intercooler tube right behind the oil fill tube. The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top-performing, longest lasting and most reliable aftermarket filtration system in the diesel industry. 6L -Designed to give you greater cooling capacity -Allow the turbo charger to spool up faster -Improves airflow -Diameter: 3. V-banded crossover pipe on the S400 outlet + stock turbo mouthpiece (no more cheesy factory worm gear clamp) and the necessary silicone boot whereas other kits don't use them and boost leaks will occur. Finding and Fixing the Causes of Poor MPG - EricTheCarGuy- Stay Dirty! Poor miles per gallon, or MPG, can have many possible causes. We have tons of parts of the engine of your Duramax LLY that will help keep it cool, last longer, and really make it run top notch the way it should be. The factory power steering hoses in hydroboost equipped 2001-2010 General Motors 2500/3500 DIESEL pickup trucks are notorious for leaks. Test drive your vehicle to ensure your gauge is functioning properly. GMC 3500 Sierra 2001-2004 LB7 Boost Duramax 6. The factory compensating canister starts to leak boost pressure around 40% of the peak boost pressure to control the boost curve - which hurts performance. LBZ- Stock turbo trucks should make 30psi with Jack tuning and 35-37 with king tuning as measured on an analog gauge. I have had all that stuff apart and wonder if I lost a O ring. Once the turbo spools up to the desired boost, the BoostValve opens, quickly opening the waste gate. 6L Duramax V8 Engines, Chevy/GMC. This is an important tool every turbo car owner needs in their arsenal of tools. Identifying a Worn Out Wastegate Actuator. This is one method of manual boost control. 6L Duramax LLY. Some of these issues are preventable with certain modifications. Year 2007 Make GMC Model Sierra 2500 Fuel LMM Installation is a snap Leak-free seal Aggressive power Reduces boost pressure loss. BOOST LEAK LOCATOR GUIDE IF YOU HAVE INSIGHTS, CORRECTIONS, EXPLANATIONS, or REPAIR WRITE-UPS, PLEASE email me SO I CAN MAKE UPDATES! If you own a Twin Turbo, you've probably seen a lot of talk about BOOST LEAK. Every single part, down to the nuts and bolts, is. 5" mouthpiece that is also o-ringed to ensure there are no boost leaks where the mouthpiece mates with the factory turbo. 5 Stage 1 VGT Turbo For 04. What's up guys I just joined this forum hopefully I can get some help I have a boost leak on my 03 lb7 and can't find it anywhere unless its something else I have tightened the intercooler boots took them off and the tubes to look for holes and nothing cleaned tyhe maf sensor the filter changed the fuel filter and nothin yet can anyone think of anything I have missed that I can look for or. This is something you might not see or notice unless you are towing alot. This will result in a drop in the power and restricted RPM, making driving near impossible. 99: Time left: 6d 0h 7m. com or go on ebay. DevilsOwn Alcohol Injection is the Best source for your Methanol/Water Injection System needs. Only one set of hose clamps is rather pesky -- the clamps on the passenger side turbo outlet. 6L LB7 Injectors We have stock and Stage 1 high-performance 2001 - 2004 Duramax LB7 injectors for sale for the 6. Opti-box is an O-ring sealed carry case for your 8oz bottles. No special tools required. The factory compensating canister starts to leak boost pressure around 40% of the peak boost pressure to control the boost curve - which hurts performance. Troubleshooting an Oil Leak in an Exhaust Pipe. Crusing the egts are in check though. If there is a hole in this part of the intake track, boost pressure will leak out, and the MAP sensor (boost. These herbs can also treat Candida, again by strengthening the immune system. If your turbo boost drops quickly or rises quickly without the application of the throttle, it could be caused by a blockage in the wastegate or a broken wastegate hose. JJPage Subscription Expired. Identifying a Worn Out Wastegate Actuator. Lots of smoke when tc is locked in 6th egts high whenever you hit the skinny pedal. You can also use a dye in the fuel and black light kit to try to pinpoint leaks at the injectors on an LB7. PPE Boost Increase Valve for GM Duramax 6. Even the smallest boost leaks can affect turbocharger and engine performance, so they'll want to be taken care of quickly to ensure you're. 6 Duramax Engine 4th May 2015 If you have a 2001-2004 Duramax 6. 6L LB7 2001-2004. Benefits of billet compressor wheel : *CNC machined from solid billet aluminum for durability, with Extended Tip technology. Herbs boost the immune system instead of attacking the virus directly. It should move back and forth easily. [14] It's a win-win relationship. Buy Torque Solution TS-BLT-BILLET Boost Leak Tester Universal: Covers - Amazon. This is an important tool every turbo car owner needs in their arsenal of tools. I have been making boost leak testers for years. The truck should have the red. and pressurize it. If you had a boost leak you would be smoking, the bigger the leak the more smoke produced. Crankcase Ventilation System with Pressure Regulator Downstream of Filter Mann + Hummel ProVent Additional components may include a check valve in the oil return line and a relief valve or bypass valve that vents blowby gas to prevent crankcase over pressurization if the restriction of the separator become excessive. 6 Diesel Common Issues and Problems If you have a 2001-2004 Duramax 6. Check actuator with truck off. We offer Alcohol Injection Kits, Water Injection Systems, Water and Methanol Injection. The HSP LLY Max Flow Bridge to HSP Cold Side Intercooler Pipe is designed to mate to the HSP 3" Cold Side Intercooler Pipe in your 2004. In many cases, 3-4psi leaks are very common. have a load test done on the battery to check for bad cell and check the alternator drive belt for condition and tension. 6L LB7 Duramax engine is white smoke at idle. Turbo Boost Leak Testers, Inc is dedicated to making boost leak testers –That’s it! This is an important tool every turbo car owner needs in their arsenal of tools. Unlike the factory design, the hydraulic hose is no longer permanently attached to the tubing sections, one of the major downfalls of the stock lines. Every WCFab Turbo kit is hand built in house by our experienced fabricators and welders. This Kit will Provide Parts to Replace the Common Leaking Coolant Jiffy Fitting at the Turbo for Ford Powerstroke 6. It occasionally losses all power when you push on the accelerator, but it will idle and smoke then clear up and run. All Duramax VGT Turbo's Need to use stock LBZ/LMM plastic mouthpiece (intake adapter) or better for proper performance and durability on LLY trucks and newer. And some LB7's do have EGR on them, CALI and New England emissions trucks came with it. The boost sensor sends a low pressure signal to the engine's computer which “thinks” there has been a failure of the turbo. It should move back and forth easily. Up-Pipes for use with stock profile exhaust manifolds. Could be the turbo but I would check over everything first. 2006 GMC Duramax Codes P2563 & P003A So, my dad's truck started throwing these codes fairly recently, and I'm trying to get them figured out for him. Higher vane loads and lower max boost is the result. If you have a boost leak somewhere, the MAF sensor would still be reading all the air flowing into the turbocharger, but the MAP sensor would be wondering where the air is going. My LB7 lifted with 35's got better mileage than this stock truck. More likely than not, if the upper radiator hose is rock hard (pressurized) boost and/or exhaust from a EGR cooler leak wouldnt make the hose that hard, that would. The DieselSite 4″ Turbo Boost Leak Detector installs quickly and is able to pressurize the system and get that leak detected sooner rather than later. I had my injectors changed about 4k miles ago and didn't have any issues until about 800 miles after the change when it threw the low coolant message. 6L LB7 2001-2004. Every component is built and test fit on our jigs to ensure proper fitment. 6L Duramax LBZ/LMM - MMRAD-DMAX-06. The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top-performing, longest lasting and most reliable aftermarket filtration system in the diesel industry. If the air gets too hot, it may not produce the expected power at any boost level. com FREE DELIVERY possible on eligible purchases. I tuned the last week and now the noise is a lot louder now when on the throttle. Buy LB7 Injector Lines 6. Lb7 engines are notorious for injector,and head gasket failures poor GM design on both. If you're looking to get more power and torque out of your 6. If you have located the leak then you can probably determine how to get a tool on it. Check the hotside IC pipe as they can get a hole rubbed in them. There are risks to anti-viral medications, and there are herbal alternatives. Just raising boost alone does nothing, it just adds air! No hp gain!! You must also add fuel at the same time as raising boost to make hp. Could be the turbo but I would check over everything first. Additional Information. Have lb7 leaking fuel into the oil after injector change from DCP (diesel care and performance) Ran with valve covers off and can't see leak Ran with die in the fuel and right away fuel in oil. I looked at the fins and saw no damage so figured it was a boost leak. Even the smallest of leaks (1-3lbs) can cause tremendous loss of low end, slower tubo spool, and higher EGT's. It's hard to beat the winning combination of a Duramax diesel engine paired with an Allison transmission, and Parleys Diesel Performance carries a full line of performance parts and upgrades for the Duramax in your Chevy Silverado or GMC Sierra pickup truck. I don't want to loose. Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines. Couls this be a boost leak or is the wastegate diafram have a hole? What else would cause this? I have a 1994 S4. After, the scan tools will used to check for proper boost pressure readings. In stock form, other than some gauges and a power program that added about 100 crankshaft horsepower and roughly 180 foot-pounds of torque, there was no disappointment with the power - it was awesome!. The factory programming is set up to reduce engine power in the event of excessively low/high fuel pressure to avoid injuring the engine. By mid-model year for 2007, the LBZ was effectively replaced by the emissions compliant, diesel particulate filter equipped LMM. I'd start with the inexpensive things first. Our precision CNC machined bridge section allows for maximum efficiency, as well as a perfect fit every time. 6L LB7 2001-2004. 6L Duramax Turbocharger for GM Duramax LMM engine applications. 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. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The engine control module (ECM) supplies 5 volts to the boost pressure sensor on the 5-volt reference 2 circuit, and provides a ground on a low reference circuit. This is an important tool every turbo car owner needs in their arsenal of tools. Use this initial bleeding procedure whenever replacing or servicing any component in a hydro-boost system. These herbs can also treat Candida, again by strengthening the immune system. If this is the issue, it's likely that you'll have to replace the wastegate hose. I wish everyone that owned a 6. 6 Boost 3500 Code 2001-2004 Sierra LB7 $17. Low rail pressure on LB7 is usually caused by supply issues/fuel filter, too high of return rate on injectors (can be tested), or weak CP3. 6L Duramax Diesel.