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 engine does a Chevy Silverado have?

Affected vehicles include: 2011–2016 2500HD Silverado 6.6L V8 Duramax diesel trucks with LML engines 2011–2016 3500HD Silverado 6.6L V8 Duramax diesel trucks with LML engines 2011–2016 2500HD Sierra 6.6L V8 Duramax diesel trucks with LML engines 2011–2016 3500HD Sierra 6.6L V8 Duramax diesel trucks with LML engines

Why are GM diesel engines a ticking time bomb?

GM promised consumers the continued reliability of their diesel engines, but with increased fuel efficiency and power at greater fuel efficiency. However, this came with a hidden and catastrophic cost that was secretly passed on to consumers,” the suit claimed while also referring to the engines as a “ticking time bomb.”

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.

When did the Duramax 6.6L turbo diesel come out?

The Duramax 6.6L V8 turbo-diesel engine is nearing its 20th year of production, after debuting in 2001. Over the engine’s lifespan it has gone through 6 different engine variations: LB7, LLY, LBZ, LMM, LML, and L5P.

Which is the best Duramax truck for towing?

With its fully-boxed frame and upgraded IFS suspension, the Duramax LML-featured trucks are the best towing trucks out of any of the other Duramax’s on this list. The only two downsides of this engine are its emissions controls and the new CP4.2 HPFP that’s used.

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.

When did the first Duramax diesel truck come out?

General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s. read more Diesel Power Products has the parts for your GMC or Chevy Truck! General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s.

Are there any Duramax parts for a Chevy truck?

Diesel Power Products has the parts for your GMC or Chevy Truck! General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s. Previous to the Duramax, their 6.2L and 6.5L offerings faltered behind the Powerstroke and Cummins offerings in terms of overall power and reliability.

How much horsepower does a Duramax Diesel have?

Today, the Duramax makes nearly 400 horsepower and over 750 lb-ft of torque while reducing emissions considerably over previous generations. The chart below follows the progression of the Duramax diesel, from the first LB7 to the more recent 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.

When to change the fuel filter on a Duramax?

Dirty fuel filter is the most common issue we see when fuel rail pressure is low. The filter should be changed in the 8,000-10,000 mile range if good fuel is being purchased and running mostly low HP tuning, much sooner if running competition/race style tuning.

How can I Keep my Duramax Diesel pump healthy?

However, there are measures you can take to keep the pump happy and healthy, the first being to always buy your diesel from a high-traffic, reputable filling station that’s known to dispense good, clean fuel. Second, always change the fuel filter at or before the recommended service interval.

Are there any problems with the Duramax diesel engine?

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.

Why is my fuel gauge not working on my 2005 Duramax?

Was helping my son-in-law with his 2005 (LLY) 2500 4×4. He installed new head gaskets and then had a no start. We noticed the oil pressure and fuel pressur gauges were not working. Injectors were powered but no pulse when canking.

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 to do if your Duramax injector is not working?

To relieve this problem, the wiring harness (or affected portion of the harness) will need to be replaced/repaired. Often, you can verify the problem by wiggling the wires around the injector. If the problem goes away (even momentarily), you’ve identified the affected zone.

Which is the best 6.6 Duramax engine to buy?

Just like the LBZ was the best pre-emissions 6.6 Duramax engine, the L5P is the best post-emissions Duramax. All the problems associated with emissions system and injection pump have been taken care of, and for 2017 GM switched suppliers of the injection pump from Bosch to Denso.

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.

Why did my 2004 Duramax engine not start?

My 2004 Duramax started and then died like it was out of fuel. Now it won’t start. I have about 1/4 tank of fuel, tried priming it until the batteries died.

Are there any issues with the Duramax fuel pump?

The new injectors available from us and others are updated and do not have the cracking issue. Fuel Filter Housing Oring Leaks – The Duramax fuel system does not have any sort of low pressure fuel pump pushing fuel to the engine from the tank. The injection pump sucks all the fuel from the tank.

Are there any problems with my 2003 Duramax?

Thaks for the help. injectors,water pump,headgaskets,injectors again,instrument cluster,steering shaft,pinion seal,and injectors again. I have on 03 with 66,000 on it and know problems. Friend of mine has 03 asmost same truck and know problems with 145,000 on it. Sure love mine. P:S Injectors should be warrantied to 200,000.

How long can a Duramax go out of service?

This special policy covers the condition described above for a period of 7 years or 200,000 miles (320,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

When to submit a repair order for a 2003 Duramax?

Claims with repair orders prior to May 25, 2004 must be submitted to the Service Contract provider. For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin.

Can you fill up a GMC Sierra with gas?

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. Anyone have issues getting your truck to accept gas? Last week, I tried filling up and it spit gas back out the vent hole and filler neck. Pulled pump out and filler neck was totally full.

What causes fuel starvation in a Duramax Diesel?

Fuel Starvation and/or Air in the Fuel Lines. 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.

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.

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.

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.

When did GMC Sierra 2500HD Denali come out?

Purchased on 07/18/18 and owned in GA until 05/07/21. Driven an estimated 33,931 miles/year.

How many miles does GMC Sierra 2500HD have?

Mileage: 37,106 miles Body Type: Pickup Color: White Engine: 8 Cyl 6.0 L No accident or damage reported to CARFAX. Purchased on 06/21/14 and owned in WY until 03/06/21. Driven an estimated 10,764 miles/year.

How is General Motors dealing with the diesel scandal?

While the ramifications of the Volkswagen Dieselgate scandal continue to be felt, it seemed like the dark fog over diesel technology was finally lifting. But now General Motors is dealing with its own situation regarding diesel engines.

Why does my 2015 Duramax high country not start?

I have a 2015 2500 High Country with 45k Miles. I was in line at a drive through and the lady asked me to turn off my engine cause she couldn’t understand my order. I did and when i tried to start it back just turns over but wont start. Pushed it to a parking place and notice diesel coming from the fuel filter where the water seperator screws in.

What should I do if my Duramax engine wont start?

With the engine OFF, loosen fuel filter assembly plastic bleed screw a turn or so, and depress the round priming pump on top of FF assembly until fuel squires out of vent. CAREFULLY close plastic vent nut with fingers or nutdriver. Depress pump until firm. Barely finger tight with nutdriver is all you need.

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.

Where to test 2020 GMC Sierra AT4 Duramax?

The publication put its 2020 Sierra HD test vehicle on a 208.1-mile loop in Michigan, taking the AT4-equipped truck on both city streets and out on the highway. It was a near-perfect day for this test, with the weather perfectly clear and sunny and the ambient air temperature sitting at a crisp 60 degrees.

Where can I get a 2020 Duramax Diesel?

Trying find another 2020 to compare with mine. Most likely need to try another dealer of look up a good diesel repair shop that knows the dmaxes and let them check it out. If I ever get an answer I will post it.

Why is my GMC Duramax knocking at idle?

I have the same problem of knocking, it started after changing the oil (Amsoil 15-40w Diesel) at 1300 miles on it. When cold the engine runs quiet, when warm starts knocking loud at idle and quiets down around 1000 rpm. Called Dealer and they said it will get louder as it is breaking in.

Is the GMC Duramax compatible with diesel fuel?