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.
Herein, how long will diesel injectors last?
around 150,000 kilometres
Also Know, how long do injectors last on a 6.6 Duramax? For most buyers the first set of injectors will likely have already been taken care of since the failure usually occurs between 100,000 and 150,000 miles.
Moreover, what year Duramax has bad injectors?
It's common diesel knowledge that one of the weak points of the 2001-2004 Duramax diesel trucks is that the injectors will go bad.
How do you know if your injectors are bad on a Duramax?
Symptoms of bad injectors on these would be engine over heating, loud knocking noise(should sound like a bunch of old typewriters), pour acceleration, white smoke emitting from the tail pipe. The easiest way to tell is to pull the oil dip stick and smell for a strong diesel smell in the oil itself.
Related Question Answers
How do you know when to replace diesel injectors?
5 COMMON SYMPTOMS OF FAULTY DIESEL FUEL INJECTORS- Trouble starting the vehicle or uneven idling. The engine cranks but doesn't start unless you crank it for a long time.
- Misfire.
- Smell of fuel.
- Dirty emissions.
- Increased fuel consumption and poor miles per gallon.
Can you drive with a bad injector?
While fuel injector problems usually give warning, driving your vehicle for a long time with a clogged or faulty fuel injector can cause problems. Increased fuel consumption. A noticeable increase in tailpipe smoke and emissions. Rough idle and hesitation during acceleration.How much does it cost to replace diesel injectors?
Getting your fuel injectors replaced is part of maintaining your vehicle. The cost of a replacement includes parts and labor. The labor can cost between $200 and $300, while the cost of the parts will vary from $150 to $600.What are the signs of a bad fuel injector?
Here are a few signs there might be something wrong with your fuel injectors.- The Engine Misfires. Dirty fuel injectors may cause your vehicle's engine to misfire.
- Idling Gets Rough.
- Your Gas Mileage Tanks.
- The RPM Needle Starts to Dance.
- Your Car Won't Start.
What causes diesel injectors to go bad?
There are two major causes of diesel fuel injector failure associated with the properties of the fuel itself: excess wear and deposits. One mode of injector failure is excess wear. This sulfur comes from the crude oil refined into the fuel. This sulfur in the fuel acted as a natural lubricant for the fuel system.Should I replace all fuel injectors at once?
When it comes to your diesel fuel injection system, a single injector is often the cause of an entire engine failure. This is why it is often best to replace multiple injectors at once.How do I keep my diesel injectors clean?
How to Clean Diesel Injectors- Purchase a fuel additive.
- Start the car, and allow the engine to warm up for three or four minutes.
- Remove and drain the fuel filter.
- Fill the entire filter and housing cavity with your chosen fuel additive.
- Install a new fuel filter for your diesel vehicle.
What is the best year of Duramax?
2006-2007 2500 & 3500. Perhaps the most desired of all Duramax models are the '06-'07 Classic body style trucks.How much does it cost to replace injectors on a 6.6 Duramax?
The total cost to have a mechanic replace 8 injectors on an LB7 Duramax can range from $4000 – $5000 CAD, depending on what other work is performed at the same time.How much does it cost to put new 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.What is the most reliable Duramax?
1. 6.6L Duramax LB7 – Overall Best Diesel Engine.Is a Duramax better than a Cummins?
More horsepower means faster acceleration whether you're towing or not. The current Duramax 6.6L L5P diesel wins this category with 445 horsepower. The current 6.7L 24V Ram Cummins diesel engines produce 400 horsepower. Historically, horsepower has swayed slightly in favor of the Duramax versus the Cummins line.Why do Duramax cranks break?
The crankshaft usually breaks near the number one rod journal due to a combination of excessive rpm and the large external counterweight. A factory firing order that beats up the front area of the crankshaft has also been blamed for imposing undue stress on the crank.Why do Duramax LB7 injectors fail?
The coils on the injectors for the LB7's take much higher current flow so that could be an issue but most of all the injector failures with LB7's are not coil failures. For the most part it seems to be excessive return fuel which is cause by dirt in the seat area or a worn seat.Why does my Duramax smoke at idle?
A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Worn and damaged injectors are often the cause however there are other causes and considerations that should be looked at prior to injector replacement.How often do LB7 injectors go out?
However, early Duramaxes aren't problem free. 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.How many miles does a Duramax last?
A poorly-maintained engine can quickly fall into disrepair before it even reaches the 100,000-mile mark while a well-maintained Duramax pickup truck should last 400,000 or even 500,000 miles.How long does it take to change injectors on a Duramax?
12 hours is about average book time for all 8. Actual time spent will depend on the person doing it. Never seen it done quicker then 4 hours, heard of it taking a few days.Is the 2001 6.6 Duramax a good engine?
The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. However, like any engine (or any complex mechanism for that matter), the Duramax engine and Allison 1000 transmission have some common problems inherent to their design.Which is better Lb7 or LBZ?
Lb7- great fuel mileage, cheaper, sound better, injectors suck and very good throttle response. Lbz- WAY more power, quieter engine compartment (noisier injectors though), more turbo lag, factory high idle which is great, and the best part is the 6 speed alli.What should Lb7 injector balance rates be?
When viewing the rates, a cylinder with (+) means that its injector is using more fuel than the average fuel rate and a (-) translates to less fuel. GM states that balance rates should be no more than plus or minus 4 (+4/-4) in park at operating temperature.How long do stock LBZ injectors last?
Really just depends. I've seen injectors go out at 70,000 or 250,000.What is the best Duramax motor to have?
Released in 2017, the L5P is the latest a greatest version of the Duramax. It is substantially more durable than previous Duramax models and features an impressive 445 HP and 910 lb-ft of torque. The L5P replaced the LML in Chevy Silverado pickup trucks.Can you clean lb7 injectors?
You can use the bmw injector cleaner, same as the x66p.Why does my Duramax smoke white?
White smoke from an LB7 Duramax engine often indicates faulty injectors. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector.How do you check fuel injector balance?
Injector Balance Test ProcedureConnect a fuel pressure gauge to the fuel rail pressure connection. Select injector #1; the fuel system will prime. Record the initial pressure reading immediately after the fuel pump shuts off. Select and test each remaining injector.
What oil does a 2020 6.6 Duramax take?
Engine OilSAE 15W-40 is preferred. Capacity: 10 quarts. (with filter)After refill check oil level.
