How long do injectors last on a Duramax?
Unfortunately, Duramax injectors are both expensive and difficult to reach in the engine compartment for replacement, which prompted GM to extend its injector warranty to 200,000 miles. The LB7 is otherwise a very reliable engine.
How much does it cost to replace injectors in a Duramax?
The total cost to have a mechanic replace 8 injectors on an LLY Duramax can range from $3500 – $4500 CAD, depending on what other work is performed at the same time. The good news is LLY injectors are located outside the valve covers so the task is considerably easier and cheaper than on prior LB7 models.
Can you rebuild LMM injectors?
These LMM Remanufactured diesel fuel injectors are rebuilt using brand new Bosch nozzles. In order to complete the installation of your new injectors, we recommend replacing the fuel return lines and fittings which can be found HERE.
How do I know if my injectors are bad on my Duramax?
There is a multitude of symptoms your truck will experience if the injectors are going bad. One of the first signs we see are excessive smoke/haze. You will notice your truck billowing out a little more smoke than usual or hazing at idle. Another issue you may notice is high EGTs.
How often should diesel injectors be replaced?
The average lifespan of a diesel fuel injector is around 100,000 miles. A typical fuel injector has two basic parts: the nozzle and the injector body. If either of these components gets clogged or damaged, it will compromise the entire performance of the vehicle.
How much do injectors cost for a 6.6 Duramax?
The total cost for Duramax injector replacement is $2,000 and $6,000. The labor costs associated with this job can range from $800-$1,500.
Is the LMM Duramax a good engine?
Consistent to its very similar LBZ counterpart, the LMM is a highly reliable engine. The DPF is a hot-spot for failure so beware that you will probably end up with a few thousand dollars of DPF/emissions repairs, however you can *illegaly* remove this potential problem by removing the DPF system.
Which is the best injector for a Duramax truck?
Whether you are replacing a factory injector or looking for a performance upgrade to deliver the correct amount of fuel to an aftermarket tuned engine, you’ll find the perfect Duramax LMM injector right here. These injectors are capable of producing incredible amounts of power and ensuring your Duramax truck is tough enough for any task.
What are the most common LMM Duramax engine problems?
5 Most Common LMM Duramax Engine Problems. 1 1. LMM DPF Failure. With the evolution of diesel emissions standards, the LMM added a diesel particulate filter or DPF. The DPF is part of the exhaust 2 2. Leaking Transmission Lines. 3 3. LMM Low Fuel Rail Pressure. 4 4. Piston & Crankshaft Failure. 5 5. Allison 1000 Power Limitations.
What’s the difference between the LBZ and LMM engines?
While the engines are nearly identical with the exception of the emissions systems, the LMM’s pistons tend to fail more easily and at lower power levels compared to the LBZ. The LBZ has a 7-hole injector system, while the LMM only has a 6-hole injector.
Are there any problems with the Duramax block?
Piston & Crankshaft Failure While the Duramax block used in the LMM is a highly capable and reliable engine, it does suffer some limitations. If you are driving a stock LMM and have no intentions of modifying it, then you can ignore this issue. I’ve never heard of the pistons cracking or the crankshaft snapping on stock engines.