How long do LLY Duramax injectors last?
between 150,000 to 200,000 miles
Most well-maintained LLY injectors last between 150,000 to 200,000 miles.
How much does it cost to replace injectors in a LLY 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. Related repairs could be needed if you have driven for a long time with dirty fuel injectors.
How do I know if my LLY Duramax injectors are bad?
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.
Does the LLY Duramax have Injector Problems?
Thankfully, the LB7 injector problems were resolved, but some new problems revealed themselves. Some of these 6.6L LLY Duramax engine problems stem from the fact that it has significantly more horsepower and torque compared to the original Dmax. In fact, a number of other common 6.6L LLY Duramax problems exist.
Are LLY Duramax reliable?
The 2nd generation Duramax is known as the LLY. Similar to the LB7, the LLY Duramax is reliable, powerful, and lacks most of the emissions found on modern day diesel trucks like the L5P. LLY Duramax trucks don’t suffer from the same injector failure problems that LB7 trucks frequently had.
How hard is it to change LLY injectors?
It’s not very difficult. Make sure you get new seals and coppers, and make sure that the injector bore is clean before you install the new injector. All the injectors come out the easiest if you remove the line first. Use a screwdriver or similar tool to pry up on the hold down and just wiggle the injector up.
How much is it to do injectors on an lly?
How much does it cost to replace injectors on LLY? 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.
Are LBZ and LLY injectors the same?
The 2006 LLY and LBZ use the same injectors, but they are totally different from the injectors on the LB7 or the 2004.5 thru 2005 LLYs. I have NOT heard of any injector failures on any 2006 truck.
Where are the injectors on a LLY Duramax?
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.
Is an LLY reliable?
Outside of common maintenance and normal wear and tear items, you can count on the LLY to be a reliable work truck. For those towing frequently or in hot climates, upgrade the turbo inlet as it can lead to expensive head gasket replacement.
What is wrong with the LLY Duramax?
The most common issues LLY owners encounter include decreased fuel mileage, overheating and poor turbo response. These symptoms result from the inlet mouthpiece of the Garrett turbocharger having to fit into a smaller engine space.
