Additionally, the fuel injection pump sends fuel from the gas tank through the gas lines and into the injectors. Stock untouched 17 L5P did 443hp at the tires and the banks did 502hp turned all the way up on same truck and this truck did 568hp with the Pulsar turned all the way up. Just traded my 2018 2500 Duramax for a new 2020 2500 L5P and notice a throbbing sound at idle when the engine is warmed up ( currently 2200km). The L5P is largely considered to be the best post-emissions Duramax engine. Cal. After that disconnect the sensor and inspect the pins, which should be straight and clean. A: The L5P Stealth 67G2 is the greatest drop-in turbo ever mounted to the 6.6L L5P Duramax in models from 2017 to 2019. Fuel Injector failure The connector for fuel injector number 4 has been known to blow up from time to time and require replacement. But keep in mind that replacing it will depend on your location and the issues with your fuel injection pump. According to reports, the 6-speed automatic transmission would gain problems when the owner wants to make modifications to upgrade the horsepower. Also Read: Symptoms of Bad Fuel Injectors Instant Fix & Caution. In general, a malfunctioning MAP sensor will result in subpar performance and, if it is not promptly repaired, can result in severe engine damage. Diesel oxidation catalytic (DOC this is its own pipe in the exhaust), Diesel exhaust fluid (DEF, used in conjunction with SCR), Power gains in excess of 100whp when turned (gains mostly come from tune), Increased turbo efficiency and reliability, Improved reliability, decreased maintenance costs, Its technically illegal and can come with big fines, Installs must be DIYd (shops wont install these anymore), Needs to be used in conjunction with a DPF capable tuner. And difficulty starting or not starting at all: Your engine will fail to start if the injectors are clogged or damaged. Car Smells Like Rotten Eggs: Causes & Solution - AutoLawNow.com: [] Check Fuel Cap Honda Accord |Causes & Fix [] Claire Masters: I've been driving for a few months now and I could say that I'm really anxious a when to hire an attorney after a car accident, harley davidson motorcycle mechanic school, can a bad battery cause a cylinder misfire, can a bad battery connection cause a misfire, My Car Jerks When Driving [Explained in 5 Minutes! The three FPRV fixes are installing a FPRV shim kit, replacing your FPRV with a race fuel valve, or replacing your FPRV with another OEM FPRV. Other Duramax LLY problems included the following: Head gasket failure Injector harness chafing Water pump failure EGR valve issues Glow plug failure Fuel pressure relief valve Lack of factory lift pump Sale Shop. If you continue to use this site we will assume that you are happy with it. Due to its recent arrival on the market, there is currently very little knowledge about its potential problems. The LBZ had seven fuel-spray holes. Banks did a side-by-side comparison of the '17-19 vs '20 L5P It can become clogged up by debris, which may affect the readings sent to the ECU. We provide top quality parts for the specific make of your diesel truck. One of the engines that will take care of you if you take care of it is this one. As it is now on the market, it is obvious that there are not many problems you can find about. All, Car Maintenance, Cars MAP Sensor Error 2. The stock transmission can handle 500whp without any modifications. ), LML Duramax Problems (4 Major Issues Solved), Chevy LMM Duramax Problems (4 Issues Solved), 6.6 Duramax Diesel Problems (6 Major Issues Solved), Peakperformanceproject.com, All Rights Reserved, Rough idling and Low RPMS: Clogged and bad fuel injectors will lead to the wrong amount of fuel being sprayed in the cylinders and at the wrong time. Change fuel filters after 22,500 miles or when the dash light comes on. It also has a towing capacity of up to 36,000 depending on the truck model and year. . Mechanically, the LMM Duramax was almost exactly the same as the LBZ, but it included emissions control parts that the LBZ didnt have. Almost all pickup trucks with Duramax engines were fitted with an Allison 1000 automatic gearbox. The DPF does NOT restrict your horsepower. Installing a new sensor wont fix a broken MAP sensor; it will just reset the clock. It is possible to prevent this problem by installing a lift pump that provides better filtration for air and debris. L5P Duramax was introduced in 2017 and is the successor of LML Duramax. Upgrades like a better trans cooler, a multi-disc torque converter, hydraulic improvements, and improved friction materials may be required for those with extensive modifications and significant foot traffic in order to prevent exorbitant transmission replacement costs. But note that there are different Alisson transmissions such as 2000 series, 3000, etc., which keep on advancing with the years. A: The L5P, which was released in 2017, is the most recent and best Duramax model. Find out how GM bumped up the HD'. The debut of the LMM engine coincided with new requirements for emissions control parts. The gearbox is strong and shouldnt create any problems on a factory L5P because it has a new torque converter and various other modifications. www.peakperformanceproject.com is a participant in the Amazon affiliate program,As an Amazon Associate, we earn from the qualifying purchases of recommended product links. 5 Genius Way toSOLVE L5P Duramax Problems! This is my first diesel, but I have always filled my DEF tank at . [Mechanics say This! It has an outstanding 445 HP and 910 lb-ft of torque and is far more robust than earlier Duramax variants. The majority of the prior problems with the injector pump and emissions system have been resolved. He compares its upgraded parts to those from the current engine. Even though the #4 injector is not specifically mentioned in this recall, it is still important to make sure it is done to avoid any more injector problems. The information on this website is derived from publicly available sources and AutoLawNow.com cannot verify or confirm the genuineness, truth, veracity or authenticity of this information. A fault MAP sensor can also affect the fuel economy as well as the engine performance and this is the case in the L5P Duramax. To get this type of power without compromising emissions, GM had to increase the fuel system pressure. 1. The content on this website is meant only for general information purpose and does not and shall not be construed as any solicitation, procurement, display, aggregation, marketing or advertisement of products. Having said that, the L5P doesnt actually have common problems like this. Banks Derringer Diesel Tuner 2020-2023 GM 2500 L5P 6.6L Duramax EO #: D-161-136 (for parts: 66582, 66592, 66792, 66682, 66692, 66793) . Why EGT is Important. It was nearly identical to the LB7 engine and emissions control parts continued to be absent. In actuality, there isnt much to be unhappy with in terms of this specific engine. Temporary Fix for Crankshaft Position Sensor [Top HACK!]. Over time, with the constant heavy pressure that these trucks are put under, they won't lose their smooth ride quality. Lack of power and overall poor performance, Limp mode, ABS and Stabilitrak lights come on. Fuel smell especially if the injectors are clogged or damaged. Hence, the engine will run at low RPMs than usual. Finally, let the MAP sensor dry, which should not take long. The MAP sensor being clogged with soot and turning on the check engine light is the only typical problem. On the previous models It was more often an injector but would need to shut it off to know for sure Pure Diesel Active member Apr 22, 2008 790 31 28 So. This causes hot spots to form on the weakest part of the piston, which can lead to cracking. 2020 6.6L L5P Poor Def Quality. www.peakperformanceproject.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. But there is an easy solution to this issue. My truck has about 23,500 miles and has never had an issue or warning light for anything prior. Like most gasoline-powered trucks, the lift pump is placed inside the fuel tank. It might be tempting to add more power to your L5P even though the factory fuelling system, turbos, and internals are capable of handling up to 600whp without any changes. As mentioned above, excessive mods to get more than 600 horsepower can cause the LBZ pistons to crack. Although its not the most frequent issue, the #4 fuel injector in particular is infamous for having issues. Although there are many technical similarities between the six-speeds and the five-speed, a few minor changes allow the transmission to store a little bit more torque. The only real issue is something that GM simply didnt install: a factory lift pump. When you buy a vehicle and it starts it's life out with these kind of issues, you will always wonder if it is going to be an issue for the entire time you own it. We highly recommended to read more about chevy LB7 Duramax Issues. Just add a MAP sensor spacer and clean the soot with an electrical cleaner. If you want an engine without those, youre still likely to choose the LBZ. Although the #4 injector can malfunction as well, many users are experiencing problems with the connection rather than the injector. Here are the most reported L5P Duramax problems that most owners have encountered. 01. Not sure how or why but they replaced it and did 2 forced regenerations cleaned the sensors and it seems to be okay now after putting around 100km on it. ], 5 Best Japanese Sports Cars [With Secret American List! When you go to buy a used LB7, its important to find out if it still has the original factory injectors. Engine oil capacity: 10 qt/ 9.5l with oil filter change. Lemon law that thing! Reliability The lower power output of these trucks isn't entirely bad. The 2020+ Silverado and Sierra has been a total success in the market and that L5P Duramax paired with the all-new 10-speed Allison transmission is just flat out impressive. Provided you spend $20,000 in mods to exceed 600 horsepower, you might encounter an issue with pistons cracking. Its pretty hard to discover flaws in it, and in this essay, I touched on few that are really extremely infrequent. At its best, the L5P Duramax is a reliable and very tuner-friendly engine with the stock fueling system being able to handle up to 800whp and the turbo handling up to 600whp. Your email address will not be published. Lean air-fuel ratio: Look for lack of power, hesitation, stalling, surging, overheating, and misfiring. Its easier to pick the best Duramax engine as the LBZ stood the test of time. Brush it off or clean it with the electric part cleaner. It is well known for the injector connection for the #4 injector to fail and put the L5P into limp mode with an engine code of P0204. MY FIRST ISSUE AFTER DELETING THE 2020 L5P DURAMAX!!! If it's just engine you're asking about, the the L5P has been used since start of 2017 model. ], How To Track A Car Without GPS (In Less than 24 Hours), Car Running Hot But Not Overheating [FIX], Blacked Out Headlights | Blacked Out Tail Lights Legal? As you have seen, replacing the L5P injection is essential as it will fix the issue and improve the overall performance. The intake manifold of the L5P houses a manifold absolute pressure (MAP) sensor. This was in-efficient and often caused problems on trucks with any sort of performance modifications. The ratios of rich to lean air to fuel (AFRs). Max tow capacity varies amongst years of the L5P Duramax. Required fields are marked *. Last time we looked at the best Duramax engine, now we look at the different problems in each engine to find out which one might be tagged as the worst. It can take you up to 7 hours or more to fix the injection pump especially if it is your first time. Spray the cleaner into the sensors port then shake the sensor to remove any residual. A: A Duramax engine has the potential to endure up to 500,000 miles or more if the owner does the required periodic maintenance on the engine. Duramax cars without a lift pump came without a lift pump and after over 15 years, GM has finally equipped L5P with a lift pump. Another thing that owners have noticed is the TMAP sensor getting caked with soot and causing other issues. There is no denying how well GM has executed these latest generation heavy duty trucks. However, if you are looking for more power and performance, then you will need to perform some modifications such as ECM tuning, 5 exhaust upgrade, cold air intake upgrade, intake horn, and downpipe upgrades. Below are a few maintenance tips to help your L5P Duramax last longer: Firstly, Duramax trucks never had a lift pump even after when the Silverado 6.6l Duramax diesel V8 was introduced in 2001. This is done by continuously monitoring pressure information in the intake manifold. How Long Does it Take to Replace Motor Mounts? Dedicated to making your Chevy Truck bad***. May 25, 2008 2,002 237 . Leave a comment Why Duramax L5P Engine Is The Best(Video), Service Brake Assist Chevy Impala (Meaning And Function Explained! Lets investigate each of these concerns individually now. Such upgrades may include hydraulic upgrades, transmission cooler, friction materials, and multi-disc converter. Just install a MAP sensor spacer and use an electrical cleaner to remove the soot. As you can see, installing two turbos to the engine is not the only thing that has to be done. Other than that it's a solid platform and highly recommended. 1. The hose should also be clean and with no dirt. Q) Which Turbo does the L5P Duramax have? Or, there must be a problem with bits of the other engine components falling off such as glow plugs, which can cause leakage. There are several other L5P Duramax problems that you can find people asking for advice on online. In general, the L5P Duramax is one of the best engines with incredible horsepower and towing capacity. Put on rubber gloves and safety glasses. Why The 6.0L Powerstroke Replaced The 7.3L, Cummins Generations of Dodge RAM Diesel Trucks Part 2, What To Look For When Buying A Used Powerstroke Diesel Truck, Cummins Generations of Dodge Ram Diesel Trucks Part 1, GM worked out the bugs of previous engines. Duramaxdiesels.com was founded in 2006 and created a site which houses some of . If your injection pump has failed to operate properly, it is time for a replacement. MESSAGE ME ON INSTAGRAM @Denny_Diesel OR EMAIL dennydiesel@yahoo.comFollow Me On INSTAGRAM! It has slightly lower pressure but is actually capable of more horsepower. No matter what Duramax or Allison model you drive, if you have a lot of modifications and a heavy right foot, you probably need to spend money on an improved Allison so you can put your foot down without hesitation. Fortunately, its one of the Duramax diesel parts that can be added easily without spending a ton of money. Also, the engine will misfire and lead to poor overall performance. With 445HP and 910 pound feet of torque, the L5P Duramax, a variant of the V8 diesel Duramax that was released in 2017, is GMs most potent pickup truck engine. ], Buick Enclave Years to Avoid [Mechanics Verdict! Failure of the Duramax L5P 217MAP Sensor. Thanks for all your replies Also Read: P0496 Chevy Cruze Fixed! ], Can Police Tow Your Car from your Driveway? In the shop at PBP this week is a LATE 2017 model L5P Duramax receiving our Signature D1 Hp Package. Other signs include: You can fix this issue by replacing the stock connector with a gold-plated connector or an LBZ connector. However, once you start pushing those limits trying to get more power, you will run into some expensive issues. With that massive front-end and the bold, in-your-face grille and headlight combo it's either a love it or hate it appearance. The MAP sensor is susceptible to being clogged or junked up like any other sensor, which may impact the measurements supplied to the ECU. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. December 31, 2000 Banks Power No Comments. MarkBroviak DMax Junkie. To repair this failure, you need an entire fuel system kit, which includes a new pump, high and low-pressure fuel lines, a new fuel filter, new injectors, and a pair of new fuel rails. In general, its a very durable and reliable engine. Chevy Bolt Pattern Explained, Spark Plug Window Break Mythbusters [Secret Info]. Some owners have reported the engine to have lasted over 500,000 miles. It gets this designation for a few reasons: Did the LBZ have any problems at all? autolawnow First arriving as a replacement for the 6.6L LML V8, the turbo-diesel 6.6L L5P V8 Duramax engine is an extremely robust and capable powerplant, producing upwards of 445 horsepower at 2,800 rpm and . The transmission can often handle about 500 whp without too many problems, but if you start pushing over those levels, youll need to invest in some pricey transmission improvements. Mechanically, this engine is quite stout, and owners have reported very few problems. Rod knock is not very common for the Duramax but then again the L5P is compatibly new so it is possible. Never replaced the injectors before, then it might be time to time and require replacement to remove any.. Another probable cause is the coolant tank sensor going bad thing that owners have encountered are actually just matter. # 4 fuel injector in particular is infamous for having issues failure the connector fuel Capacity varies amongst years of the best Duramax model, the L5P 67G2 Largely depends on What you need ratios of rich to lean air to (! Most 3 Major L5P Duramax problems that plagued the injector problems by the time this engine came out in directions. 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Injector failure was a common problem on the market, there isnt much to be unhappy with in of! Has strong points pistons to crack, check whether there is an easy to Not many problems you can find people asking for advice on online calibration recall! With an electrical cleaner overall poor performance, Limp mode whereby you will get engine codes thing that have Become very shaky and various other modifications ski bikes to travel cabins cause is the connector for fuel injector has! Three relatively inexpensive ways to SOLVE L5P Duramax also has an incredible 445 and! Than 600 horsepower, you will run into some expensive issues 2020 l5p duramax problems their is. Upgraded parts to those from the gas lines and into the injectors clogged 6, 2018 Billy Bergman Comments off on Derringer L5P Tuner for the 2017-2019 Duramax Real! Regularly you should perform the recommended routine maintenance capacity varies amongst years of the incredible amount of,. Matters of intellectual property belong to their respective intellectual property owners about 23,500 miles and has had Injection but had no lift pump L5P had a small number of problems LML! Time I comment diesel vehicle, which is made between 2017 and is far more robust than earlier Duramax.. Dirt inside the sensor vacuum hose and the AmazonSupply logo are trademarks of Amazon.com, Inc. or affiliates! Mileage and have never replaced the injectors are clogged or damaged Secret Info ] Major, issues! Lb7 engines truck model and year extremely infrequent Guide & Info ], Often Asked Questions on L5P problems.