How hard is it to replace injectors on an lly?
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 does it cost to replace LLY injectors?
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.
Are LBZ and LLY injectors the same?
The LLY (04.5-05) injectors are straight bodied, where the 06-07 LLY and LBZ have tapered bodies. You can run an LLY body in a LBZ head with a larger o-ring, but the LBZ injector will not fit in an LLY head.
How do you diagnose a bad injector on a Duramax?
Symptoms of Failing Duramax Fuel Injectors
- Excessive Smoke.
- Power Loss.
- Rough Idle.
- Fuel in Oil.
- High Return Fuel.
- No Start.
Is it difficult to change a fuel injector?
Yes, unfortunately the difficulty does vary between engines. Cars such as a 90’s Honda Civic have incredibly easy access to the injectors, as the injectors are mounted on a rail on the rearward exterior of the engine. This makes replacement a snap, as they are both easily accessible and cheap to replace.
How do you take the injectors out of a LLY Duramax?
They are pretty easy and straightforward to remove. Get everything out of the way, disconnect electrical connection, remove wire clip holding return line, pull return line straight out the top of injector, remove fuel line, remove retainer bolt and turn back and forth to wiggle it loose.
How long does it take to replace injectors on a Duramax?
A lot of people choose to replace the injector cups (which involves draining the coolant, then using a puller to remove them), as it usually only adds a few hours of additional labor. With replacing all eight injectors being a 12- to 14-hour job, it’s cheap insurance.
Can you put LBZ heads on an lly?
Yes, you can run LBZ/LMM heads on an LLY without changing anything else.
Are LLY and LMM injectors the same?
No you can’t use the LMM injectors with your LLY, totally different setup. You can use the reluctor from the LMM but it needs to be modified to work or just swap over your LLY one.
How to replace your fuel injectors?
Those of us that make use of a fuel injector cleaner on a regular basis may never experience problems, but sometimes, they might become clogged, dirty, or get damaged, which may call for a replacement. If you suspect that might be the case with your
How to change LBZ injectors?
Well it fairly simple. just remove anything in the way to get to them, pull the clip that holds the return line on, pull the injector holddown, and take off the high pressure line and pull it out. But may i ask why you are replacing them? you almost never need to replace them on an LBZ F foxxx665 Registered Joined Aug 6, 2010 31 Posts
How to overhaul Duramax LB7 injectors?
– Keep your fuel system clean. A clean fuel system will decrease dust and grime build up in your injectors. Making them last longer. – Buy good fuel. Cheap fuels can damage your injectors. Shortening their life span. – Use injector cleaners. Fuel additives are usually not recommended. – Avoid fueling from unreliable sources.
How do you replace fuel injector in cylinder?
The fuel pump pushes petrol or diesel through the fuel lines to the injectors.