Quick Answer: Avoid Duramax Year Models 2001-2010
In short, the newer model years show improved performance. The first engine was the 6.6L Duramax LB7 used in the 2001 – 2004 Chevrolet Kodiak, Chevrolet Silverado, GMC Topkick, and GMC Sierra HD.
What year Duramax is most reliable?
Some engines are more popular than others. For example, the pre-emissions Duramax engines made between 2001 and 2007 are highly sought-after for superior reliability.
What are common Duramax problems?
Some things to watch out for include problem starting, excessive smoke, lower gear selection, poor fuel economy, a loss of engine power, lower RPMs, and excessive noise. While several possible fuel system problems exist, the 6.6L Duramax consistently has two.
What year did Duramax have injector problems?
What year Duramax has injector problems? The LB7 Duramax built from 2001 – 2004.5 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 years did Duramax have problems? – Related Questions
Is Powerstroke better than Duramax?
Both the Ram’s Cummins (seen above) and Ford’s Power Stroke can pull over that amount, but the Duramax lags with a total towing capacity of 23,300. The Power Stroke wins here again with a total towing amount of 34,000 pounds versus Ram’s 31,210 pounds.
Is a Duramax better than a Cummins?
Cummins Vs.
The Duramax leads with horsepower, but the Cummins is the king of torque with numbers up to 1,000 ft-lbs depending on the truck. Let’s take a look at some other specs.
How long do injectors last on a Duramax?
The biggest issue with ’01-to-’04 and 1/2 LB7 engines is their fuel injectors’ propensity to fail, typically before an engine reaches 100,000 miles. When an LB7 injector fails, it can dump an enormous amount of excess fuel into the engine, often at very low speeds (such as idle, for example).
When should Duramax injectors be replaced?
On average, diesel fuel injectors should be replaced every 95,000 miles.
How long are Duramax injectors good for?
The average lifespan of a diesel fuel injector is around 100,000 miles.
How much does it cost to replace the injectors on 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.
How often should I change my oil in my Duramax?
To keep your Warranty from voiding, you will need to follow your vehicle’s manufacturer recommendations, change your vehicle’s oil before 7500 miles, or at least once a year, whichever occurs first. My manufacturer recommends changing the oil between 5,000-7,000 miles.
What are the symptoms of failing injectors?
You will know it is time to visit your mechanic to clean your defective fuel injectors if you experience the following:
- Engine Stalls or Rough Idle. Your car may sputter or shake, mostly during traffic stops.
- The Engine Misfires.
- Bad Fuel Economy.
- The RPM Needle Starts to Dance.
- Check Engine Light.
How often should you change your diesel injectors?
Diesel fuel injectors generally have a shorter lifespan than their predecessors, meaning they need to be replaced more frequently for optimal performance. The life expectancy of a good quality diesel fuel injector is around 150,000 kilometres. They should be checked out by a professional at around this time.
Is it worth cleaning diesel injectors?
The Importance of Cleaning Diesel Injectors
If the fuel injectors have deposits, it’s important to clean them to restore engine performance back to the way it was. At a professional garage, they may use an ultrasonic machine to clean the injectors out.
Is it better to clean fuel injectors or replace?
Fuel injectors should be cleaned at least once every 36 months, or 45,000 miles. Replacing weak or worn-out engine parts without improving performance is not a good idea in general. However, cleaning out dirty injectors may gain a different perspective on engine health.
Will seafoam clean diesel fuel injectors?
It works through fuel injectors and carburetors to remove harmful residues and deposits from fuel passageways, intake valves, pistons, and chamber areas. Made from petroleum ingredients, Sea Foam is safe and effective when used in all types of gasoline or diesel fuels and fuel blends.