If you’re wondering if your 2015 Duramax has problems, read on! You’ll learn about problems with the LLY Duramax head gasket, cracked pistons, and a failed turbocharger. You can also learn about the LBZ Duramax cracked pistons. While the LB7 engine had several issues, GM addressed them before releasing the LB8. The LB8 engine is a completely different beast, however, and presents its own set of challenges.
LLY Duramax head gasket failure
Xtreme Diesel Performance in Chico, California, has found a common problem with Duramax engines: head gasket failure. In this article, Jason Carrier describes the process of replacing a head gasket. The truck he inspected was a 2015 LLY Duramax. It had been using one quart of coolant a week and had to be put under the knife to replace the head gasket.
The problem with LLY Duramax trucks is related to emissions regulations. These trucks were produced when emissions regulations became more stringent, so they included a faulty EGR system. This caused a number of problems and decreased reliability. Diesel engines are notorious for having head gasket failures, and these problems are caused by emissions. Luckily, this particular engine is relatively easy to fix. In fact, the aftermarket makes it possible to solve many of the problems associated with this engine.
A LLY Duramax head gasket replacement is a major task. The cost of labor and parts for a head gasket replacement can cost you up to $4,500. However, the time required will depend on the complexity of the repair. And remember that head gasket replacement is a high-risk, labor-intensive process. Most people spend anywhere from $4,500 to $5,500 on this process.
Luckily, LLY engines are very reliable up to 300k miles. In fact, the engine was upgraded in 2006 to fix many problems associated with the older LB7 model. If you have a 2015 LLY with low mileage, it’s a great idea to have it reprogrammed. You can also replace the control module yourself if you’re feeling the symptoms of head gasket failure.
LLY Duramax water pump failure
The LLY Duramax water pump failure is a common problem with these trucks. Even though the LB7 model corrected this problem, it still happens with the LLY Duramax. The factory water pump seals tend to fail between 80,000 and 100k miles. If your LLY Duramax is experiencing water pump failure, you may want to consider upgrading to a higher quality aftermarket water pump with a metal impeller.
Although factory parts are usually more reliable than aftermarket alternatives, some aftermarket models improve upon the factory water pump design. Regardless of the cost, the OEM water pump is best compared to its cheap imitations. LLY Duramax water pumps were designed differently in 2006 model trucks. The water pump used in this model is now GM 12637105. The welded water pump kit from Sinister Diesel features a welded design to prevent impeller walk.
The LLY Duramax head gasket failure is another common problem in this vehicle. Replacing this factory gasket is not a simple task. In fact, most shops will charge you anywhere from $30-$40 per hour for the repair. In addition, it is time consuming as many components must be removed. As such, this repair is best left for experienced mechanics who can complete the job in a short amount of time.
The LLY Duramax is a popular vehicle, and it is no surprise that it requires a replacement water pump every seven years. The replacement costs between $700 and $1000, depending on the age of the vehicle, and it is often not possible to perform the work on your own. If you’re not confident about your ability to replace the water pump yourself, consider hiring a mechanic. The labor involved may be high, but the end result is always worth it.
LLY Duramax turbocharger
LLY Duramax turbocharger problems are common among medium-duty trucks. It’s the LLY Duramax’s larger factory turbocharger and poor cooling system that are the main culprits. In addition, aftermarket modifications can result in head gasket failure. The first step in resolving LLY Duramax turbocharger problems is to determine the source of the problem. Listed below are some potential causes and remedies for LLY Duramax turbocharger problems.
Overheating. LLY Duramax trucks are notorious for overheating. The smallest fan and radiator in the industry are unable to cope with the large variable vane turbocharger, causing excessive heat and steam to escape the tailpipe. Additionally, the LLY’s turbocharger was not updated when the Duramax incorporated the EGR cooler. As a result, LLY owners often began to notice problems with their cooling system when towing or when the truck was working under high-load conditions.
Many LLY Duramax turbocharger problems are symptomatic of other common problems. Fortunately, most of these issues can be easily solved by installing a new turbocharger or a new intercooler. These upgrades will give your truck a cleaner combustion, lower EGTs, and more horsepower. The coolant that your car uses to cool the engine can break down when it hits higher temperatures. Lowering EGTS can also give you additional performance and durability benefits.
Many people choose to upgrade their LLY suspension with higher-quality upper control arms. Cognito, Kryptonite, and Fox all produce quality upper control arms for LLY trucks. They also make good shocks, so consider upgrading these components for your LLY truck. The Cognito Box-Style UCA Kit will help correct ball joint angles and improve droop travel for better highway drivability.
LBZ Duramax cracked pistons
The LBZ Duramax truck has been the target of many a diesel engine recall in recent years. During production, the Duramax series of engines exhibited problems with emissions equipment and cracked pistons. Since then, Ford has introduced the 6.7L Power Stroke engine in its Super Duty pickup truck. The LBZ Duramax cracked pistons in 2015, and it’s not the only one experiencing issues.
The most common problem with the LBZ and LMM Duramax engines is cracked pistons. This is an issue with low-quality cast-aluminum pistons. Cracks typically occur along the wrist pin center. Most scenarios occur when the power level exceeds 600 horsepower. Another issue that commonly occurs with high-powered engines is snapped crankshafts. Crankshafts can become damaged in high-rpm operation and due to a large external counterweight.
The LBZ Duramax was produced from 2006 to 2007. It was the last generation of the Duramax engine without emissions control technology. These emissions controls reduced the lifespan of diesel engines and impeded fuel economy. However, demand for LBZ engine-powered trucks is high. The LBZ Duramax has been paired with stronger parts that have improved performance and durability. Its engine block was designed with 60 percent more fuel injectors. It also had aftermarket turbos and EFILive tuning, but many users complained of cracked pistons and increased oil consumption.
The LBZ Duramax engines were also notorious for cracking pistons. Cracks usually appeared along the wrist pin centerline of the piston. Some models were also known to experience sticking turbos. Clean the turbo regularly to prevent the problem. It was difficult to fix a sticking turbo in these trucks. But if you’re looking to avoid a rebuild, you can use conservative tuning and driving habits.
LMM Duramax snapped crankshaft
A broken factory crankshaft in an LMM Duramax can be devastating and result in weeks or months of downtime. This type of failure is called a CP4 issue, and it specifically affects LMM code Duramax trucks produced between ’11 and ’16. This model uses a Bosch CP4.2 high-pressure fuel pump. A snapping crankshaft is the most common issue affecting these trucks.
A stock LMM is capable of making up to 300k miles without requiring major maintenance. While the engine itself is fairly reliable, the DPF is a common source of problems. If your LMM has a DPF problem, you can legally remove it, which will lower the cost of the repair. Other common maintenance items include injectors, water pump, fuel pump, and turbo. A snapped crankshaft can cost upwards of $25,000 to replace, and is a significant investment in a truck’s health.
While the LMM and LBZ are similar in many ways, the LMM is more prone to breakage when it comes to pistons. LMMs are more prone to cracking than LBZ pistons because they have more injectors. A snapped crankshaft can be devastating to a truck. Fortunately, it’s relatively easy to fix by reducing the number of cylinders you drive.
If you own an LMM Duramax 2015, there is a good chance that you’ve snapped a crankshaft. Thankfully, you can simply get the engine repaired and your truck will be back on the road in no time. A snapping crankshaft is a common problem with duramax trucks. A rebuilt LMM Duramax should last for at least 300,000 miles, even 500,000.