What makes the Duramax LML engine so strong?

what makes the duramax lml engine so strong

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. All of these items received upgrades in the LML.

Is the Duramax LML 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.

How much HP can a LML Duramax handle?

In stock form it can support with the help of a lift pump. For 600HP you simply need more pump. The Exergy Stroker Cp4 or the ATS add a pump kit can both get you to your goal.

How long 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.

Is the Duramax LML 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.

How much HP can a LML Duramax handle?

In stock form it can support with the help of a lift pump. For 600HP you simply need more pump. The Exergy Stroker Cp4 or the ATS add a pump kit can both get you to your goal.

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.

Does an LML need a lift pump?

LML’s do not have a lift pump from the factory. CP4. 2: High pressure fuel pump equipped on the LML. Mounted in the engine bay, directly feeds high pressure to the common rail and draws fuel from the tank.

How much HP does a stock LML make?

LML Duramax Specifications Chart

Max Engine Speed: 3450 Max Braking Speed: 4800 Horsepower: 397 horsepower at 3,000 RPM Torque: 765 Lb/Ft at 1,600 RPM

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How do I get more power out of my LML Duramax?

1) Duramax LML Intake Upgrade

And adding an intake before the tune will amplify the power gains of both the tune and intake as well as reduce stress on the turbo and overall engine by allowing it to breathe more easily. When a tune is added the increased boost levels will make the stock LML intake restrictive.

What does LML Duramax mean?

LML. The 6.6L RPO LML (VIN code “8”) is the . It is a further advanced version of the LMM engine with the majority of the changes addressing a required drastic reduction in engine emissions.

Can you tune a stock LML Duramax?

LML Emissions Equipped Tuning:.

Should I tune my LML Duramax?

Furthermore, that whopping 395 HP is a peak power rating, meaning that you probably won’t produce that much power during normal operations. In fact, many owners complain that the power delivery of the stock tune is too soft. This is why custom tuning is so important for the LML Duramax.

How do I know if I have an LML Duramax?

The Duramax engine has evolved from the original LB7 series to include the LLY, LBZ, LMM, LML/LGH, and now the L5P series. The simplest way to verify which series Duramax you have is interpreting the VIN# of the truck. With some exceptions, the 8th digit is the engine ID and it will either be a 1, 2, D, 6, 8, L, or Y.

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).

Is the Duramax LML 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.

How much HP can a LML Duramax handle?

In stock form it can support with the help of a lift pump. For 600HP you simply need more pump. The Exergy Stroker Cp4 or the ATS add a pump kit can both get you to your goal.

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

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What year is the best Duramax to buy?

For example, the pre-emissions Duramax engines made between are highly sought-after for superior reliability. On the other hand, the more modern engines add more horsepower, torque, and upgrade capability with Duramax performance parts.

How common is CP4 failure?

But how common is CP4 failure? The CP4 has been documented to fail mostly in cases of 100,000 miles in the USA. Other forums have disclosed that the failure rate is within 5-7%, specifically for LML Duramax engines. Despite this, the pump is well cherished by a lot of diesel engine enthusiasts.

Is the Duramax LML the same as LBZ?

The good news is that this engine is otherwise the same as the LBZ and features plenty of power and reliability. The LML Duramax featured a huge leap in performance from the previous engine to put out almost 400 horsepower stock and 765 pound-feet of torque.

How much horsepower does a Duramax engine put out?

The LML Duramax featured a huge leap in performance from the previous engine to put out almost 400 horsepower stock and 765 pound-feet of torque. To accommodate this big power increase, the block, rods, pistons, and main bearing were all strengthened.

What are the problems with the Duramax LML engine?

The drawback is that you now have to also fill your Duramax engine up with diesel exhaust fluid on a regular basis, although it is relatively inexpensive and offset by the fuel economy gains. 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.

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.