duramax vs cummins reliability

Compression ratio: 16.2:1 The injection parts are sensitive here. I had an 03 Duramax and absolutely loved it. Valvetrain: OHV with four valves per cylinder Ford recognized the demand for a diesel in the F-150 and bolted in a Power Stroke that should get up to 30 mpg on the highway. Here, we will cover engine specifications, details of each engine, and models available with these engines. Whether you decide to buy a Ram Cummins diesel or a Ford Powerstroke diesel truck, you can count on ProSource Diesel to supply all the aftermarket diesel truck parts you need to get the most out of your vehicle. What do the numbers tell you? Head gasket failure and chronically clogged EGR valves were common problems with the 6.0-liter Powerstroke. Transmission: Ten-speed automatic, Driving Chevrolet Diesel-Powered Silverados, 2020 Ford's Super Duty Pickup 6.7L Power Stroke Dyno Test. Diesels are the motive power of choice on farms, construction sites, and oil patches, as well as drag strips, boat ramps and campgrounds. With each model, The Duramax improved in durability, power, fuel efficiency and lower noise. Like the CTD, the first Powerstroke became an industry leader and was on the market for a long time before changing emissions standards precipitated a change. SOLD the cummins - Picked up an 08 LTZ Duramax - Best Decision Ever! Here is some quick data about each platform. Utah salts as well. The problems they say with duramaxes arent so bad if you put bettter fuel filtration the injectors on the lb7s will last a very long time also the llys problems are hit and miss and that i believe was only 04.5 to 05 ones then they changed something to fix it lbzs are prettty solid and cracked pistons arent that super common, 93 W250 getrag pump tweak 4inch exhaust hx35, 7x12s, low pressure 2nd gen lp, valair clutch, 2002 LB7 efi 4inch exhaust built allison. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. Tahir Azam. The 6.7-liter CTD makes about 400 horsepower, while the 6.7-liter PSD makes 450 horsepower. People have put them in everything from railroad locomotives to zeppelins to submarines. There isnt a wrong choice in most cases, but one may perform better for you. Cummins was the first to crack the 1,000lb.-ft.torque barrier for general-use trucks with the 2020 Ram 3500 Heavy Duty. Cummins was the first to crack the 1000-lb. Currently, the PSD has a slight edge. Cummins engines work Power: 445 hp @ 2,800 rpm So, in essence, less (engine output "by the numbers") resulted in a bit more (towing) for GM, as the improved drivetrain edged its Bowtie and Jimmy rigs in front of Ram by 400 pounds. All Rights Reserved. There was a magazine article I read comparing the 07 diesels in from the big three. While the Cummins turbo-diesel engine provides exceptional performance for your daily drive, our team recommends Chevy Silverado 2500HD and 3500HD Duramax diesel engine-equipped Duramax vs. Cummins vs. EcoDiesel. The ISB is used in everything from transit buses, box trucks, mining equipment, construction equipment, generators, pumps, etc. Although diesels are designed to run thousands of miles, just about every engine type has suffered from a bout of poor reliability. The third-generation 6.7L Power Stroke brings the most "new" hardware to the 2020 heavy-duty engine segment, via a compacted-graphite-iron block and stronger rotating assembly, bearings, aluminum cylinder heads and redesigned intake manifold, electronically actuated turbocharger, and updated fueling (Bosch injectors and 36,000-psi injection pressure). Following success with the performance and reliability of the LB7, Why are so many converting chevy suburbans 9th gen (2000-2006) and not 10th gen (2007-2014. The other two big brands, Ford and General Motors, were using diesel engines in their trucks, but they didnt have turbochargers. Verdict: PSD engines generally have more horsepower than CTD, and the current engines are no exception. Long the domain of the heavy-duty or light commercial level of pickups, diesels are starting to show up in smaller trucks. In 2011, they released the LML engine and added higher-pressure fuel injection with 397 horsepower and 765 lb.-ft. of torque. Ford launched its first diesel offering in 1982 in a partnership with International Harvester, which later became Navistar International. Youll also find a Cummins under the hood of the Nissan Titan XD. However, Ford trucks in both diesel and gas forms have long been among the best-selling vehicles in America for many years. 2 viewed per hour 6 liter Duramax Diesel will compete with If you isolate your purchase to your area, you limit your options. The duramax has proved itself to be just as The cylinder heads are made from aluminum, which was also reliable. For a better experience, please enable JavaScript in your browser before proceeding. Both are great trucks, but I'd vote for a Cummins all day long. Powerstroke engine is another reputed line for power and heavy-duty vehicles. The 6.7L has become a favorite of drag racers, with the high-pressure common rail system and an appetite for handling copious amounts of boost. But it depends on your comfort and choice, so knowing which is better, you should try them all and then decide. Great article. The Cummins brand is extremely reliable and prides itself on long-lasting engines. West (South Dakota, Nebraska, Kansas, etc to the West coast) and southern areas are your best bet for a clean truck. Currently, Fords 6.7 Power Stroke V8 makes the F-350 Super Duty the big daddy of the heavy-duty pickups. The big three pickup truck manufacturers have offered trucks with diesel engines for more than 30 years. In 2003, the displacement increased to 6.0L. I know the trans are week compared to the Allison, but they are much lower in cost to deal with. He currently runs a website devoted to pickup trucks and helping people find the perfect one for their needs. Power: 370 hp @ 2,800 rpm (68RFE automatic transmission) It also depends on the structural design of the truck. The amount of torque produced by CTD and PSD engines depends on the model and sometimes the truck. The technology has evolved over the years, delivering unmatched performance and fuel economy. In the 2007 model year, the 5.9L Cummins converted into 6.7 liters. If youre looking for exceptional V8 power, the Duramaxs towing capacity provides outstanding capabilities to help you get the job done. CUMMINS vs. POWERSTROKE vs. DURAMAX PHOTO FINISH!! I think now that fuel prices are going back up you might start seeing some trucks for sale. In 2007, the engine released their third generation LMM engine of pickup trucks and other vehicles. The turbocharger produces 33 psi of boost, and the engine weight is less than the previous one. The intercooler and connecting tubing often face the problem. Is Cummins 6.7 Turbo Diesel a good engine? You will also save up on maintenance in the long run. The top problems on these two engines are as follows: The exhaust manifold issue with shrinking and cracking is most often found on trucks with the CTD that do a lot of towing. Like already said,any commonrail injection system can turn into a nightmare really quick if you have contaminated fuel. The bearings are made from ceramic, which creates issues most of the time. Turbocharging: Single variable-geometry turbocharger Power: 370 hp @ 2,800 rpm (68RFE automatic transmission) Torque: 850 lb The following 6.7-liter improved on this with 650 pound-feet. The most recent model of the Titan XD 5.5 CTD gets an EPA estimate of 15 mpg city, 21 mpg highway and 18 mpg combined. I know the trans are week compared to the Allison, but The fuel economy, high power torque, injection system works excellent, and they could increase horsepower over time. Find a 6spd manual to bypass the trans issues, after that save up some $$ and get the front end right (ball joints, u joints, tie rod ends etc) and you'll have a strong truck that will last for years. Configuration: V-8 when I open my hood I can see the engine..the duramaxes and even the powerstrokes are a nightmare to get to things. The horsepower is increased in 350 and 650 lb.-ft. of torque. It also covers the majority of popular towing items, such as campers and boats. Came out to around $7,000 in two years. Duramax and Cummins engine features are as follows: The Duramax diesel engine is available on 2019 Chevy Silverado 2500HD and 3500HD crew cab models. Cummins is a bulletproof motor in a turd of a truck. I would certainly avoid the upper midwest/east coast, because they salt the hell out of their roads. Valvetrain: OHV with four valves per cylinder The 7.3L Power Stroke engine featured direct injection that put out 215 hp and 425 lb.-ft. of torque. Can you use a diesel truck as a daily driver? Thats one of the reasons Cummins-equipped Ram trucks are a favorite choice for those looking for a capable tow vehicle. To understand the differences between Cummins Vs. PowerStroke Vs. Duramax, we will have to understand the history and features of each engine. 3rd Gen. The factory design has some lacking, which is the leading cause of the cooling problem. The Powerstroke is the diesel engine for Ford trucks, and the Cummins engine is found in new Ram trucks and older Dodge trucks as well as in the Nissan Titan. But in daily use, you may not notice. If youd like to go old school, check out the 2006-2007 Chevrolet/GMC 2500HD and 3500HD. In 2019, they upgraded 1,000 lb-ft torque and decreased the compression ratio. The 6.7L Cummins and the 6.7L Power Stroke share the same displacement, while the 6.6L Duramax comes in last. The 450 hp, 1050 lb.-ft. of torque are channeled through a 10-speed automatic transmission. Afe stage2, Mbrp 4" tbe. Although they have some superficial differences so which brand is the best, it depends on your choice. Don't be afraid to travel/have shipped. For high-performance applications, the Duramax options lag behind. Common failure points have been common: leaky heads, fuel injectors, turbochargers, and exhaust gas recirculation systems. the first range of duramax had injector issues that are under the valve covers and extremely hard to get to. In 1998, the P7100 injection pump created 215 horsepower and 420 lb.-ft. Of torque. However, horsepower is also important for towing and hauling. The engine was first created for farm use, and then it was produced for vehicles like ram trucks, busses, Fiat Chryslers Ram, and Many other truck makers. 2nd year Dmax received upgrades in heads that cured that and plus made more power. Duramax trucks are more reliable than Powerstroke and Cummins because of it. Power: 400 hp @ 2,800 rpm (AS69RC automatic transmission, 3500 only) It almost seems like Ford was just lying in the weeds and waiting for Ram and GM to shoot their best shots, before unleashing 2020 Super Duty and its third-generation 6.7L Power Stroke engine in late 2019. Turbocharging: Single variable-geometry turbocharger As mentioned above, most people buy diesel trucks for their superior torque output. Torque: 1,000 lb-ft @ 1,600 rpm (68RFE automatic transmission, 3500 only) The current Duramax Diesel engine was designed with unique features to provide more power without compromising fuel economy or longevity. Failure of these glow plugs can damage the entire engine but the 6.7l resolve the issue, and you wont face this problem much. The six-bolts-per-cylinder head design and the low stock cylinder pressure contributed to its long life. The Cummins 6.7L Turbo Diesel is the most powerful engine option for RAM 2500 and 3500 pickup trucks. Your email address will not be published. Hes written extensively on the subject for major publications and is widely considered an expert on the topic. Ford and Navistar parted ways in 2009, and in 2011 Ford debuted the 6.7L Power Stroke Scorpion. The 6.2L and 6.5L GM engines built from 1982-2000 were valued for their fuel economy in light towing usage and didnt match up to the Cummins or Power Stroke. In 1982, General Motors produced a 5.7L Duramax engine with 120 horsepower and 220 lb.-ft. of torque. Bore x stroke: 4.21 x 4.88 inches In 2011, it had 390 horsepower, and 735 lb.-ft. Of torque. Block Material: Compacted graphite iron They also improve the emission requirements like 4-valve-per-cylinder head, fuel injection system, etc. A 4WD truck will always have less towing capacity vs. the exact same model and trim in 2WD. The CTD name is arguably more popular, but Ford pickups are more popular than the Rams. If youre looking for an engine that will withstand your plans for insane amounts of power, consider the 6.4L Power Stroke from 2008-2010 F-250s and F350s. More It largely depends on what model of Dodge or Ford truck the engine is in. The Duramax is an awesome engine but it just doesn't have the longevity of a Cummins, plain and simple. 7.7secdiesel said: It also features Tow/Haul mode for reduced shift cycling and Auto Grade Braking, which automatically downshifts when needed for engine braking and reduced brake wear. To learn the differences of these engines, now we are going to discuss on Duramax. ESPECIALLY injectorsterrible! The EPA doesnt rate heavy-duty diesel pickups for fuel economy, but the smaller CTD and PSD engines are found in light-duty trucks like the aforementioned Ford F-150 for the PSD and the Nissan Titan for the CTD. The combination could hand up to 35,100 pounds of towing capacity. Except it left me sit 6 times. If you continue to use this site we will assume that you are happy with it. I decided to sacrifice the ride for dependability and ease of working on it. Easy fix (piece of mind) with more filtration. Then they update the displacement. While your seat probably cant tell the difference between 910 and 935, bragging rights count. Towing capacity is based on more than just the engine. 7.3L engine still produces that time, but it stopped in 2004. If you use poor quality fuel and do not change the fuel filter regularly, the injection system will face a problem. SPECIFICATIONS. Seems like us duramax guys are still behind the cummins guys when it comes to big horsepower competition trucks, im speaking from sled pulling experience not dyno numbers or drag racing. Verdict: The smaller PSD in the F-150 yields better fuel economy than the smaller CTD in the Titan. The fuel line design is also another problem, and there is no fuel lift pump. Knowing these three diesel engines, it will be challenging to select the most reliable engine for you. Like every engine type, Duramax also has issues that needed to be figured out. in 2003, they invented a common-rail injection system. The engine releases raw fuel, and it goes to the cylinder in the combustion process. It has a twin turbocharger and a 4-valve-per-cylinder valvetrain. Cummins. The Duramax diesel is susceptible to fuel starvation and getting air in the fuel lines. This can be contributed to the fuel filter housing design and the fact that the Duramax does not use a lift pump. Rather, the high pressure fuel pump (injection pump) is responsible for vacuuming fuel from the tank. Torque: 1,050 lb-ft @ 1,800 rpm In the end, it's cheaper to make 800 horse with a cummins than a duramax. Picking one over the other is likely to come down to pure preference or loyalty to one of the two brand names, or the pickups made by Ford and Ram. Some trims come with towing packages that increase the towing capacity of a particular truck. The energy cannot pass much through the cylinder to the crankcase. Ram started the party in early 2019, by announcing that the high-output Cummns 6.7L I-6 engine in its heavy-duty rigs makes 400 hp and 1,000 lb-ft of torque (370hp/850 lb-ft for the standard version). A forum community dedicated to Dodge Cummins Diesel truck owners and enthusiasts. Compression ratio: 16.0:1 The CTD is the oldest diesel engine of the two. It enables the truck to get up to speed faster. Cummins began making diesel engines in Columbus, Indiana, in 1919. Fords first power stroke diesel engine produces 175 horsepower, and 318 lb.-ft. of torque at that time. All the chevy engines outside of the newest, 07+ have internal design issues. Most diesel pickups are used as work vehicles, so fuel economy isnt usually the biggest consideration when it comes to what buyers choose. Although 6.0L did not like by people because of its so many faults. Now that you are all about the Chevy Duramax, you should get the best engine for your truck and avoid all the problems and bad models of the product. The CTD offered 400 pound-feet of torque and direct injection as well. Interior is better and so is the ride, but as far as easy to work on and having all out towing grunt you can't beat a cummins. Verdict: Its a tie as all light-duty PSD or CTD trucks come with the same length of warranty. The 6.4-liter PSD that followed made 650 pound-feet of torque. A Cummins diesel first appeared in a Ram pickup in 1989. Since then, Cummins has cemented its reputation as a builder of reliable diesels. Additionally, towing capacity tops out over 31,000 pounds, giving you the ability to tow an absurd haul with minimal fuss. Ryan - 2003 SRW-QCLB 3500, 6 spd, 4X4, Southbend 3250, Smarty S-06 Pod, Scheid 90 Hp Sticks, 5" Straight Pipe. Verdict: Another tie. But the Power Stroke may be able to pull faster in real-life driving. In general, the PSD engines have offered more horsepower over the years than CTD engines. Configuration: I-6 Its not uncommon to see engines with 500,000 miles when properly cared for, thanks to the hardened internal components and the hydraulically actuated, electronically controlled unit injector (HEUI) fuel system that stops the engine from running if the oil is low. 6.2L 130 horsepower and 240 lb.-ft. of torque. SCR is a simple device with many weak points. You can expect exceptional V8 power from the Duramax engine, while the Cummins engine is available in two variations: a standard I6 and a high-output I6. The 6.6L Duramax V-8 is easy to modify due to the lower level of complexity. With each model, The Duramax improved in durability, power, fuel efficiency and lower noise. If there are any doubts, know that it scored very well in a series of Diesel Power Challenge events. mechanicable.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. Its also B20 biodiesel compatible. Filed Under: Car Tagged With: Cummins Vs Duramax, Cummins Vs Powerstroke, Powerstroke Vs Duramax, Your email address will not be published. The Chevy Colorado and GMC Canyon offer a 2.8L four-cylinder that returns up to 30 mpg. Diesel goes light-duty, but this small-but-mighty EcoDiesel is the industrys lone light-duty diesel engine: 6.7L 24-Valve. same as he said. It is also known for better throttle response along with proper improvement of other units. Is a diesel truck good for a daily driver? Today, most heavy-duty pickup trucks have a diesel engine option for drivers who need more horsepower and torque than a gas power plant can provide. All three engines will benefit from upgrading the cylinder head fasteners. It's easier diagnosing what's wrong with a woman. In 2018, they did not upgrade the So to make them better buy parts from us. Displacement: 6.7L (408 ci) They reduce emissions and added several new additions. The 7.3L can run 200,000 miles before its time to overhaul the injectors. In terms of power, it comes in just between the Cummins and the Power The others are just a nightmare to fix if something goes wrong With a 47RE it's impossible to tell. The 2018 Chevrolet Silverado HD and GMC Sierra HD Duramax engine make 910 lb-ft. It is called a scorpion. Each of the cylinder heads is 2-valve, made from cast iron, and the fuel injection, turbocharged, is upgraded over time. It has a NOx sensor that can damage at high exhaust temperatures. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more! Over the years, the GM updated the Duramax to improve performance and meet emissions standards. In 1999 they added an intercooler and increased 275 horsepower and 525 lb.-ft. of torque. Here are the common faults of Cummins engine: The engine has no SCR system, and it operates a rich air-fuel the mixture to keep the NOX lower. The horsepower is increased in 350 and 650 lb.-ft. of torque. Other than that I LOVE my cummins. However, one major difference seems to bring Cummins engines to the forefront, especially in terms of their pulling power and reliability for RV owners. The replacement PSD was a 6.0-liter, and it offered more power than the previous engine, but it also ran into a number of problems. If more engine power is needed for your daily work tasks, W-K Chevy has compared two impressive options for you to consider: the 6.6L Duramax turbo-diesel V8 and 6.7L Cummins turbo-diesel I6. 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, 555 pound-feet of torque for a Nissan Titan XD with a 5.0-liter CTD, 930 pound-feet of torque for a Ram HD with a 6.7-liter CTD, 1,000 pound-feet of torque for a Ram 3500 Laramie with a 6.7-liter CTD, 935 pound-feet of torque for a Ford Super Duty with a 6.7-liter PSD, 440 pound-feet of torque for a Ford F-150 with a 3.0-liter PSD, DualBoost turbocharger on PSD engines between 2011 and 2014, Exhaust manifolds on 6.7-liter CTD engines, Turbocharger cool-down on both CTD and PSD engines, DEF/SCR issues on both CTD and PSD engines, Valvetrain: Overhead valve with four valves per cylinder, Displacement: 6.7 liters (408 cubic inches), Power: 370 horsepower at 2,800 rpm with automatic transmission, Torque: 850 pound-feet 1,700 rpm with automatic transmission, Power: 400 horsepower at 2,800 rpm with automatic transmission only on the Ram 3500, Torque: 1,000 pound-feet at 1,600 rpm with automatic transmission only on the Ram 3500. In general, the maximum towing capacity in any truck will be found on a 2WD trim. The Powerstroke Diesel turbocharger issue happens mainly to tuned engines as the additional horsepower and torque cause the ball bearings of the turbo to degrade. In short there both good but they have issues. 2018 Ram 2500 HD Cummins or GMC Sierra 2500 HD Duramax? Block Material: Cast ironTransmission: Ten-speed automatic. Then, in early 1994, Ford introduced the 7.3-liter Powerstroke engine. What are we lacking? This heavy-duty engine has a common-rail Bosch CP3 injection pump, which is different from other engines, 4-valves-per-cylinder is another improvement. Lots of good input right off the batt! The 5.9 CTD was one of the most popular diesel engines of all time, and it wasnt replaced until 2007 with the 6.7-liter. Diesel engines typically provide more torque, which leads to better towing and hauling capacities. The current 6.7-liter PSD makes 1,050 pound-feet of torque. It is a common and complicated problem in this engine. These two problems were also common in 6.0l. Because all of these are compared, the cumins have superior popularity. One of the main reasons people buy trucks with diesel engines is to tow things. It is only their first venture, the other Powerstroke engine produced by international Navistar. SPECIFICATIONS:Engine: Duramax L5P Also, coolant leaks most often. The CTD actually revolutionized the diesel market at the time by utilizing a turbocharger. Yaw - I will be patient and find one- private owner. Paid the premium price for the diesel for durability. In 2004, they updated the engine that calls the LLY engine. This is likely due to how long its been around. Currently, its possible to get either a CTD or PSD truck that tows over 26,000 pounds. I'm in the market for a truck, and honestly I'm in a holding pattern because I'm waiting to see what the Duramax 2.8L diesel engine will be like in the GMC Canyon or Chevy Colorado. In the 2007 model year, the 5.9L Cummins converted into 6.7 liters. Buyers looking for their first diesel pickup might lean towards the CTD for this reason alone. This contributes to the reliability of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup truck.

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