What problems do LML Duramax have?

what problems do lml duramax have

How many miles will a Duramax LML last?

The Duramax engine should last up to 300,000 miles before needing major repairs if you are wondering how long it will last. The number of miles an engine can run depends on how well it was maintained and driven over its lifetime.

What goes wrong on LML Duramax?

Injection Pump Failures

The Bosch CP4. 2 injection pump on the LML Duramax is coined a “Ticking time bomb” by many people familiar with the LML platform. It’s extremely susceptible to failure from bad diesel fuel or lack of lubrication. When it breaks, it often takes the injectors out with it.

What year Duramax should I stay away from?

Quick Answer: Avoid Duramax Year Models

The Duramax has a long history. We recommend avoiding any GM vehicle that comes equipped with the 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010 Duramax engines. In short, the newer model years show improved performance.

What goes wrong on LML Duramax?

Injection Pump Failures

The Bosch CP4. 2 injection pump on the LML Duramax is coined a “Ticking time bomb” by many people familiar with the LML platform. It’s extremely susceptible to failure from bad diesel fuel or lack of lubrication. When it breaks, it often takes the injectors out with it.

Is LMM or LML better?

LML is arguably a better engine but there are issues with DEF on all makes; Ford, Ram and GM. LMM emission controls have proved to be as reliable as any.

How much does it cost to delete LML Duramax?

You will also need to reroute the PCV and do a blocker plate at the least. For a full delete, you will need exhaust ($400) tuning ($690) PCV reroute ($50) and Blocker Plate ($12) or new Y bridge and cold side ($700 or so). As mentioned a lift pump is a very good idea on these trucks especially the LML ($600).

How much HP does a LML Duramax have?

How Much Horsepower & Torque Does my Duramax Make?

445 hp @ 2,800 rpm L5P

31 строка•22 нояб. 2021 г.

What is a 2011 Duramax?

The Duramax V-8, dubbed “LML” internally, is the latest generation of GM’s HD diesel since it was introduced in 2001. Sixty percent of its parts are new, and Duramax chief engineer Gary Arvan said it will be 11 percent more fuel efficient than the previous LMM Duramax.

What year Duramax have Injector Problems?

What year Duramax has injector problems? The LB7 Duramax built from is known for injector failure. The good news is the replacement injectors you purchase from us incorporate several updates to help prevent repeat failures.

What generation Duramax is best?

6.6L Duramax LB7 – Overall Best Diesel Engine. The LB7 Duramax was first introduced in 2001 when GM discontinued its 6.5L Detroit diesel. The Duramax was superior in performance to the Detroit and marked an important turning point for Chevrolet pickups and GMC trucks in the diesel market.

What is considered high mileage for a Duramax?

According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.

Is a Duramax better than a Cummins?

More horsepower means faster acceleration whether you’re towing or not. The current Duramax 6.6L L5P diesel wins this category with 445 horsepower. The current 6.7L 24V Ram Cummins diesel engines produce 400 horsepower. Historically, horsepower has swayed slightly in favor of the Duramax versus the Cummins line.

What goes wrong on LML Duramax?

Injection Pump Failures

The Bosch CP4. 2 injection pump on the LML Duramax is coined a “Ticking time bomb” by many people familiar with the LML platform. It’s extremely susceptible to failure from bad diesel fuel or lack of lubrication. When it breaks, it often takes the injectors out with it.

Can you tune a stock LML Duramax?

LML Emissions Equipped Tuning:.

What MM is stock LML Turbo?

LML 11-16 RDS 64MM Duramax Turbocharger Reman

RDS REMAN LML 63.5MM 2.5 LEGAL DROP IN STOCK APPEARING TURBO FEATURES 6 BLADE COMPRESSOR WHEEL, 10 BLADE TURBINE (GREAT WHISTLE) ALL NEW SEALS, HEAVY DUTY BEARINGS, 360 THRUST BEARING THIS TURBO…

Is a 2015 Duramax a LML?

Displacing 6.6 liters in a V8 configuration, the LML is part of the Duramax family of heavy-duty workhorse engines. Displacement: 6.6L / 403 cu. in.

GM 6.6 Liter Turbo Diesel V8 Duramax LML Engine.

Type:6.6L V8 Turbo Diesel Engine Duramax
Bore x stroke: 103 mm x 99 mm
Fuel system: Direct injection diesel with high pressure common rail

29 строк

How common is CP4 failure LML?

I have read that as much as 7% of CP4 fail on LML Duramax.

Does a LML have a lift pump?

The LML Duramax doesn’t have a factory lift pump. Luckily, the addition of an aftermarket electric lift pump can help ensure that positive pressure (and no air) is supplied to the low-pressure side of the CP4. 2—and can be installed relatively affordably.

Does a 2011 Duramax have a fuel pump?

Duramax Injection Fuel Pump

Varying from most conventional diesel engines, the Duramax system doesn’t feature a lift pump. Rather, the injection pump sucks fuel from the tank, creating a vacuum from the fuel tank through the fuel lines and fuel filter. … It is the most powerful diesel pickup truck engine GM has produced.

Is the LML Duramax a good engine?

Outside of the injection pump, the LML is a reliable engine with the exception of the emissions systems. DEF and SCR cause their fair share of problems, but are also covered under warranty for the trucks that still have it. The problems are common enough that deleting the DEF system is frequent among LML owners.

What makes the Duramax LML engine so strong?

Beyond emissions systems and the injection pump, the LML is the strongest Duramax engine built to date. The block, rods, and pistons on prior Duramax engines were common failure points on tuned and modified engines due to weak components.

What kind of problems do Duramax trucks have?

Early LML Duramax trucks 2011-2012 have well-documented issues with Nitrogen Oxide (NOx) sensors that are a part of this SCR system. Other issues have also occurred regarding the DEF system. Emission repairs are often expensive! Replacing the DPF alone can cost thousands of dollars!

Are there any problems with the LML engine?

The buzzkill of the LML is the CP4.2 injection pump. Outside of this problem, there aren’t many major or costly common problems associated with the engine. Fortunately, there are some relatively simple ways to prevent these issues and make them less common.

When did the Duramax LML diesel truck come out?

Following the short lived LLY engine, the Duramax LML was introduced in 2011. Featured in the same 2500 and 3500 HD work trucks, the LML sported the same 6.6L turbo-diesel design that Chevy diesel trucks have been using since 2001.