How many versions of the Duramax diesel engine are there?

All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. Each version of the engine has its own issues and quirks, and some are less problematic than others.

What makes the LBZ the most sought after Duramax?

The tune-only power capabilities combined with its reliability are what make the LBZ the most sought after Duramax today, nearly 14 years after it stopped production. With a strengthened block and good internals, the LBZ is easily capable of surpassing the 300,000 mile mark with sufficient maintenance and care.

What kind of differential does a Duramax LB7 have?

At a stock power level, the stock Allison usually does an OK job at transferring the torque from the flywheel to the rear differential, but even a bone stock LB7 can put a hurting on the Allison, so you can only imagine what happens when you turn up the wick or hook up an oversized as many truck owners often do.

What is the VIN number for a Duramax Diesel?

Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle’s VIN number. The chart below may be used to identify which Duramax engine your truck has based on the 8th digit of the vehicle identification number (VIN).

What makes a Duramax LB7 diesel so special?

The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.

What was the problem with the LBZ Duramax in 2006?

Glow plug failure was a concern on the 2006 model year LBZ and LLY Duramax models, but the problem should have been long corrected for owners of these years. The concern was that the glow plug module would over cycle the glow plugs, creating a scenario in which the tip of the glow plug could actually deform and/or break off in the engine.

What was the code name for the Duramax in 2011?

In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML.

What kind of transmission does a Duramax pickup have?

Nearly all Duramax powered pickup trucks were equipped with the Allison 1000 automatic transmission, with the five-speed version running from 2001 to 2005, and the six-speed starting in 2006 and running until 2019.

Why is my Duramax diesel engine not working?

The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement.

How much does a 2000 Chevy 3500 crew cab cost?

Year200019991998199719961995199419931992Year See Trade-in Value Used 2000 Chevrolet 3500 Crew Cab Long Bed Edit OptionsMileage: 153,403 4.4 Consumer Write a review View Gallery For Sale Near You 10 Chevrolet 3500 Crew Cab vehicles in your area. Used 2001 Chevrolet Silverado 3500 2WD Extended Cab $5,995 B and N Auto Sales Used 2002

Are there any problems with the Chevy Silverado 4WD?

But like most “upgrades,” these systems also consist of numerous components, which over time will wear out and cause problems. Like any truck, the Chevrolet Silverado has its fair share of known issues in regard to the 4WD system. Keep reading as this article will go over some of the more common ones, along with information on how to fix them.

How much does a 2000 Chevy Silverado cost?

Chevrolet Silverado 3500 2WD Regular Cab HD $N/A Sunrise Motors Used 2000 Chevrolet Silverado 3500 2WD Regular Cab HD $8,888 Reduced Midway Nissan Used 2000 Chevrolet Silverado 3500 2WD Regular Cab New Listing $11,991 Ideal Cars Used 2001 Chevrolet Silverado 3500 4×4 Regular Cab $12,995 Norco Truck Center Used 2002

Are there any problems with the LLY Duramax?

In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.

What causes a Duramax diesel engine to heat up?

When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.

The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.

How big is a 2002 Chevy Silverado truck?

Description: Used 2002 Chevrolet Silverado 2500HD with Towing Hitch, Standard Cab, 8ft Bed, 10,000lb+ Towing Capacity.

What’s the max weight towed with a 2002 Chevy 2500HD?

The weight distribution hitch limit is the truck’s rated bumper-pull towing capacity with a weight distribution system. The fifth wheel and gooseneck limit is probably 15,300.

Where did the 2002 Chevy Silverado 2500HD come from?

1st owner purchased on 04/25/02 and owned in PA until 10/30/03 • 2nd owner purchased on 10/30/03 and owned in PA until 04/06/11 • 3rd owner purchased on 04/06/11 and owned in WV until 03/29/21. 1st owner drove an estimated 0 miles/year • 2nd owner drove an estimated 9,080 miles/year • 3rd owner drove an estimated 5,523 miles/year.

Can you get an oil change on a Duramax?

Yes, you can do most of the maintenance yourself: oil changes, fuel filter changes, air filter, tire rotations, etc. The Duramax V8 holds 10 quarts of oil. The extra oil and the fuel filter add cost to the equation. Getting the oil change done at a dealership or a shop will run $100 at a minimum.

Why does my Duramax Diesel keep cutting out?

. 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.

Why does my 2010 Silverado 1500 not start?

2010 Silverado 1500 wont start. How to reset Passlock system I have a 2010 Silverado 1500 and i am not able to start it up. I just replaced the fuel pump, but it still wont start up. There is an icon with a car and a lock so i assume its the passlock…

What kind of truck is GMC Sierra 2500?

Hi this is my first post,my truck is a 1999 gmc Sierra 2500 4×4 with 6.0 litre engine.I parked my truck for a few months and the battery went dead since the day I owned the truck the door… No registered users viewing this page.

What kind of truck starts and then dies?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. My 99 Yukon with Vortec 5.7L suddenly won’t run. It cranks over fine, starts in about 1 second (normal), but then dies 2-3 seconds later.

In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML.

What kind of engine does Chevy Silverado 2500 HD have?

This 2013 Chevy Silverado 2500 HD owned by Hank R. is built for Show and Go! For added performance the Duramax engine has been upgraded with a 64mm Stealth Turbo, FASS Fuel System, and Banks Cold Air Intake and Exhaust.

How tall is the exhaust on a Duramax Denali?

For performance, this Duramax is custom tuned and has a 5″ exhaust and more! This 2015 GMC Denali built by Tommy B. stands tall courtesy a Cognito 7-9″ lift kit, which has been custom powder coated.

What kind of fuel system does a Duramax diesel use?

New 29,000 PSI piezo injectors, a complete fuel system-hardening to tolerate up to 20% biodiesel mixtures and urea injection (to reduce Nitrogen oxides) with a 5.8 gallon urea tank are updating the fuel and emissions systems.

Are there any problems with the Duramax engine?

The failure is most common in higher horsepower engines, but can still occur in moderately modified and even stock power plants. Not specific to one version of Duramax in particular (ex: LB7, LLY, LBZ, LMM or LML), the problem exists across all generations.

Are there any problems with the Duramax water pump?

This seems to be inherent of the factory water pump design. Overheating issues with the Duramax diesel seems to be a hit-or-miss problem; some owners experience it, while others never will. Regardless, it’s more common with the Duramax than other engines.

How is a Duramax complete format engine tested?

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. Full warranty disclosure available on our website or upon request.

Is there a warranty on a Duramax 6.6L diesel engine?

JASPER® remanufactured Duramax 6.6L diesel engines are built to meet, or exceed, OEM measured standards and have a nationwide, transferable parts and labor warranty. Click here for complete warranty information. Our Duramax 6.6L Diesel Engine is a completely remanufactured engine with new wearable parts and is built to exacting tolerances.

Are there any issues with the Duramax pickup?

This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs. The glow plugs burn out over time and can be a real nuisance to remove from the aluminum heads sometimes.

Which is the best engine to replace a Duramax engine?

A JASPER Remanufactured Duramax Engine is Your Best Option for Replacement! Here’s Why… Duramax blocks are 100% align honed to meet, or exceed, original specifications including the size, shape and alignment of the saddles to prevent crank damage.

What are the most common 6.6L LB7 Duramax problems?

What Are The Most Common 6.6L LB7 Duramax Problems? The LB7 Duramax engine made its debut on Chevrolet and GMC HD trucks in 2001. These diesel engines are where the Duramax started, and they have been so successful that the Duramax are still used in GM HD trucks today.

What are the problems with a Duramax diesel engine?

Both of these issues result in fuel leaking from the injector which can then enter the crankcase. This can lead to more serious problems, as diesel fuel doesn’t offer the same lubrication properties as oil. You’ll also experience loss of power, excessive smoke, rough idling, and engine misfiring.

Is there a Chevy 4500 dump truck for sale?

For sale is this Chevrolet C4500 4X4 Crew Cab Dump Truck! This truck features a Duramax 6.6L engine, Allison A/T, 6 seats, 4 wheel drive, snow plow (n…

What kind of truck is a 2005 Chevy C4500?

This beautiful 2005 Chevrolet C4500 Tow Truck with a Jerr-Dan heavy duty rollback and a deck capacity of 10,000Lb is the perfect addition to your flee… 2005 CHEVROLET, KODIAK C4500, Medium Duty Trucks – Flatbed-Dump Trucks, Duramax V-8, Automatic, 2005 Chevrolet Kodiak C-4500 12′ x 96″ Flat-Bed Dump T…

Why does my 2005 LLY Duramax not start?

– Fixya Duramax won’t start! My 2005 LLY duramax became hard to start a few days ago. Then today it wouldn’t start at all. Turns over but wont start. The fuel filter primer loses pressure after priming it.

What was the first year of the Duramax?

The first Duramax, which was offered in the 2001 to 2004 GMC Sierra HD and Chevrolet Silverado HD was the LB7. This 6.6-liter V8 started with a cast-iron block with aluminum heads that featured four-valves per cylinder.

How to repair a LB7 6.6 Duramax engine?

We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

Can a Duramax diesel engine be kept warm?

Huge no-no for modern diesel engines as your grid heater in the intake and glowplugs stay on until the truck is “warm”. Also sometimes rebuilding the filter head isn’t enough, you have to replace it. Click to expand… Yeah I wasn’t to fond of spraying it.

What kind of maintenance does a Duramax do?

Heavy duty trucks, especially turbo-diesels, are costly to maintain. Yes, you can do most of the maintenance yourself: oil changes, fuel filter changes, air filter, tire rotations, etc. The Duramax V8 holds 10 quarts of oil. The extra oil and the fuel filter add cost to the equation.

How long does it take to replace Duramax injectors?

The dealership estimates this job between 11-12 hours of labour. The injectors are underneath the engine’s valve covers. If two injectors failed, then it’s likely others will fail as well. It’s better to bite the bullet and replace all eight at once, and save of more labour costs.

What was the problem with my Chevy Silverado?

The computer scan confirmed the problem: two of the eight injectors were starting to fail. If the problem is left unattended, it will get worse and it may cause damage to the pistons and the engine itself. I made the difficult and costly decision to replace all eight injectors.

What are the most common LLY Duramax engine problems?

The 6 Most Common LLY Duramax Problems. 1 1. LLY Bent Rods. While the LLY made competitive performance numbers back in 2004, the engine is certainly not competitive to the modern day diesels. 2 2. Head Gasket Failure – LLY Duramax. 3 3. EGR Valve Failure. 4 4. Glow Plug Failue – 2006 LLY Duramax. 5 5. Overheating in Pre-2006 Models.

What kind of pump does a Duramax cp4.2 use?

Like all Duramax engines from ’01-’10, the LML was also void of a lift pump from the factory. This means that not only does the CP4.2 have to pressurize fuel as high as 29,000 psi before sending it to the rails, but it also has to pull its low pressure fuel from the tank.

What happens if the crankshaft on a Duramax goes bad?

Perhaps the most devastating of all Duramax failures is a broken factory crankshaft. Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a huge chunk of change missing from your wallet.

What kind of mpg does a Duramax truck get?

Average MPG for Stock Duramax Trucks The average MPG for a truck with a Duramax engine varies depending on the truck model as well as on which Duramax engine it has. For example, the 2020 Chevy Silverado 1500 with the 3.0-liter Duramax turbo-diesel gets an EPA-estimated 33 MPG on the highway and 23 MPG in the city.

What’s the horsepower and torque of a Duramax?

Duramax Horsepower & Torque by Model Year. LLY: 605 lb-ft @ 1,600 rpm LBZ: 650 lb-ft @ 1,600 rpm The LBZ was introduced in 2006 and eventually replaced the LLY by 2007. The 2006 LLY featured many changes to boost torque.

Are there any problems with the GM Duramax?

In stock form and even when substantially modified, GM’s legendary V8 diesel can provide hundreds of thousands of miles of trouble-free use. Still, and just as we exposed the shortcomings of the almighty Cummins, the Duramax isn’t without its flaws—some of them catastrophic.

What kind of car is a 2003 Chevy Silverado?

Consumer Ratings Rank Vehicles HP #1 2003 Dodge Ram 1500 Regular Cab 305 #2 2003 Chevrolet Silverado 2500 Regular Ca 300 #3 2003 Chevrolet Silverado 1500 Regular Ca 270 #4 2004 Ford F250 Super Duty Regular Cab 260

Where was the 2003 Chevy Silverado 2500HD last serviced?

Last serviced in Spokane Valley, WA on 05/04/21 • Vehicle serviced • Oil and filter changed. No accident or damage reported to CARFAX. 1st owner purchased on 07/31/03 and owned in MO until 08/06/09 • 2nd owner purchased on 09/14/09 and owned in MI until 05/26/16 • 3rd owner purchased on 05/26/16 and owned in MI until .

Is the Chevy Silverado 2500 HD crew cab?

Strong Diesel, great 5 speed Allison. This Duramax Diesel has been a great truck. It easily towed a 30 foot fifth wheel trailer Very comfortable seats. Was this review helpful? Yes | No 2003 Chevrolet Silverado 2500 HD Crew Cab Specs & Features Based on lowest-priced style. Safety information is currently not available for this vehicle.

When did the Chevy Silverado 2500HD come out?

1st owner purchased on 08/23/03 and owned in CA until 11/12/19 • 2nd owner purchased on 11/12/19 and owned in WA until 05/14/21. 1st owner drove an estimated 11,166 miles/year • 2nd owner drove an estimated 0 miles/year.

What kind of Chevy truck won’t start?

In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start…. In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start….

Why does my GMC Silverado have no crank?

This is a fix for a known electrical issue with the 2003-2007 C/K series GM Trucks where a bad ground causes multiple issues. Such as no start, no crank, intermittent no gauges, and sometimes the theft light would stay on, and the parking lights would stay on.

What kind of warranty does a Duramax have?

Duramax engines are known for their reliability, and come standard with a 5-year/60,000-mile limited warranty on 2.8L Turbo-Diesel engines, or a 5-year/100,000-mile limited warranty on 3.0L and 6.6L Turbo-Diesel engines. Diesels make a lot of torque, but they don’t seem to have the horsepower of gas engines.

Which is the best year to buy a Duramax?

Best Year (s): Any year, as long as all 8 injectors have been replaced with genuine Bosch re-man units As far as powertrain, suspension, and chassis is concerned, few changes exist between LB7 equipped GM’s and the ’04.5-’05.5 LLY Duramax-powered trucks.

What happens when a Duramax engine goes down?

Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a huge chunk of change missing from your wallet. The failure is most common in higher horsepower engines, but can still occur in moderately modified and even stock power plants.

How does the Duramax engine work in the Cold?

The def system is engineered for the cold. I did a few cold starts last winter at -36F and had no def issues. Now -20 and below I would always plug it in. Heated storage is nice but not required. The only question I can’t answer is how the new smaller duramax engine does specifically in the cold.

What should I put on my Duramax in the winter?

Put extra anti gel in the winter. Never had a problem even in -14 F unheated out side and engine block heater not plugged in. Always use Lucas Anti-Gel and Lucas Cetane Boost. Can’t speak for the DEF problem sure glad I don’t have use it.

When was the last LLY Duramax Diesel made?

The LLY Duramax was produced from 2004 to 2006, before it was eventually replaced by the LBZ Duramax. It was a stepping stone for GM as they begun to encounter stricter emissions requirements thanks to the federal government and California.

What are the diagnostic parameters of a Duramax diesel engine?

2005 6.6L (LLY) Duramax Diesel ENGINE DIAGNOSTIC PARAMETERS SENSED PARAMETER FAULT CODE ACCEPTABLE OPERATING RANGE AND RATIONALITY PRIMARY MALFUNCTION DETECTION PARAMETERS SECONDARY MONITORING PARAMETERS AND CONDITIONS MONITORING TIME LENGTH AND FREQUENCY OF CHECK MONITORING METHOD FAULT CODE STORAGE AND MIL ILLUMINATION

When did the Duramax Allison diesel engine come out?

The Duramax-Allison combination was first introduced for the 2001 model year, replacing the 440 lb-ft Detroit diesel with the 500 lb-ft LB7.

Is there a 2005 GMC 2500HD Duramax Diesel for sale?

RARE TO FIND IN SUCH QUALITY CONDITION, CALL BROWNS NOW!, Duramax 6.6L V8 Turbodiesel, Allison 1000 5-Speed Automatic, 4WD, 10-Way Power Driver’s Seat Adjuster CLEAN CARFAX REPORT AND GREAT CONDITION!!

Is the LLY Duramax the same as the LB7?

Similar to the LB7, the LLY Duramax is reliable, powerful, and lacks most of the emissions found on modern day diesel trucks like the L5P. LLY Duramax trucks don’t suffer from the same injector failure problems that LB7 trucks frequently had. Instead, many LLY Duramax problems stem from overheating.

When did I buy my new GMC Duramax?

I purchased a new 2020 GMC Denali 2500 with the Duramax back around March 14, 2020. The truck that I bought had right around 300 miles on it when I bought it. At 521 miles, I got the first CEL and immediately took it to my local GM dealer that happened to be a Chevrolet Dealer.

When did the GMC Duramax Denali 2500 come out?

Enter your ride HERE to be a part of this months Ride of the Month Challenge! I purchased a new 2020 GMC Denali 2500 with the Duramax back around March 14, 2020. The truck that I bought had right around 300 miles on it when I bought it.

Which is the most reliable GMC Duramax Diesel?

Since ’16 I’ve owned a 2500 RAM Laramie and a ’17 F250 Platinum. The RAM was the most reliable of the three at this point. The F250 was plagued by electrical gremlins like a self deploying tailgate when you backed up a trailer or a SYNC system that spontaneously did whatever the hell it wanted.

What makes a 3.0L Duramax better than a V6?

The 3.0L Duramax diesel inline-six engine design lends itself to efficiency. “The inline six is a naturally balanced engine,” Barta points out. “The result is we don’t need balance shafts and the engine only has one set of overhead cams (compared with two sets in a V6).

Is the 3.0L Duramax a No Excuses engine?

“The 3.0L Duramax was designed to be a ‘no excuses’ engine option that offers excellent fuel efficiency, great low-end torque and smooth responsive operation,” Assistant Chief Engineer John Barta states. “We delivered on those targets with outstanding fuel economy, best-in-class 277 horsepower†

What does speed limited on GMC Duramax mean?

200 miles down the road the “Speed Lmited to 55 mph at next Restart” message shows up. WTF, now I am pissed. I pull over, add DEF while running, and call a dealership 20 miles down road. I pull in to a parking lot next to dealer, shut truck off and unhook trailer. Start truck and get svc def and speed limited message.

What is the first year of the Duramax?

The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

What kind of engine does a Duramax 6600 have?

Steering Wheel AIR CLEANER HIGH-CAPACITY (Included with (LLY) Engine Duramax 6600 Turbo Diesel V8 (Z82) Trailering equipment heavy-duty and…

What kind of engine is in a Duramax crate?

Engine shipping crate must be returned with core engine to receive full core credit. The DFC Street Series Long Block Engine is built for the diesel enthusiast who is looking to replace the tired or damaged engine in their 2004.5-2005 GM 6.6L Duramax LLY with one of the industry’s top remanufactured Long Blocks.

How much does it cost to replace a Duramax engine?

Note: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit. The DFC Tow/Haul HD Standard Series Long Block is a great alternative to replacing your entire 2004.5-2005 GM 6.6L Duramax LLY powered truck.

How many miles can a durmax diesel truck go?

It is pretty awesome to see. These trucks can (and do) regularly hit 200,000 miles. The truck and drivetrain will only last as long as you maintain it, though. There are parts that fail, just like anything else. But regular maintenance (fluid changes, body upkeep, hard part care) will help you have a very long relationship with your truck.

How to fix 2003 Duramax Diesel loosing Prime?

2003 Duramax Diesel loosing prime and will not start until I lift the hood and pump the prime plunger on the fuel filter housing. Clicking this will make more experts see the question and we will remind you when it gets answered. You can’t post conmments that contain an email address.

What makes a common rail 5.9 diesel engine go out?

If the fuel filters are not regularly changed, there can be a small amount of dirt and moisture that winds up in the injectors, and as a result, early common-rail 5.9’s have a bad rap for faulty fuel injectors, going out somewhere around the 150,000 mile mark.

How many miles does a 2012 Ram 1500 drive?

1st owner drove an estimated 12,154 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 8,285 miles/year • 4th owner drove an estimated 43,426 miles/year.

Is the GMC Duramax compatible with diesel fuel?

The Detroit News reports that GM is now facing a class-action suit alleging its 6.6-liter Duramax engine found in 2011-2016 Chevrolet and GMC models is not compatible with US diesel fuel.

What kind of truck is a 2006 Chevy Duramax?

This is a very clean 2006 Chevy 2500 Duramax turbo diesel with the Alison automatic transmission. This truck does not show its miles at all. It runs and drives great and still presents itself very well. If you are looking for a good …

When did the LMM Duramax Diesel come out?

A brand new body style, vastly improved interior, and a fresh version of the Duramax graced the ’07.5 to ’10 model year 2500 HD and 3500 trucks. In order to meet tougher emissions standards, the LMM Duramax would be the first 6.6L to dawn a diesel particulate filter, diesel oxidation catalyst and more extensive EGR system.

When did the Duramax 6.6L V8 come out?

lb7: 2001-2004 The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today.

What’s the difference between a Duramax and a Cummins?

Cummins vs Powerstroke vs Duramax: Specs While the 6.7L Cummins and the 6.7L Power Stroke share the same displacement, the 6.6L Duramax is a pretty close match. Both the 6.6L Duramax and 6.7L Power Stroke are V8 engines, with the 6.7L Cummins being an inline six-cylinder diesel engine.

Are there any problems with the Duramax DEF tank?

Since my Duramax was less than 6 months old it began to have problems. First with dash warnings of “Exhaust Fluid Quality Poor See Owners Manual Now”. This occurred with the DEF tank 3/4 full with new factory Chevy DEF. The Chevy mechanics at the time didn’t really understand the whole DEF system and had my truck for more than a week.

Is the Chevy Duramax DEF system mandated by the EPA?

I understand DEF is a EPA mandated system, but that does not let Chevy engineers of the hook for making a DEF system that has made the Duramax totally UNRELIABLE! The DEF system has ruined several family vacations and made my Duramax truck UNRELIABLE for any trip longer than 100 miles from home. Why 100 miles you ask?

Do you need a DEF tank heater for a Duramax Diesel?

Need help TRYING to make a decision, I have a 2011 GMC 2500HD 6.6 DURAMAX , I’m new to diesels , not a mechanic, bought the truck 2 yrs ago. Had it in the shop more than I would like first 3 months after I bought it, now in the shop again, this time DEF tank heater ( $1000.

How many versions of the Duramax diesel engine are there?