Question: How Much Does It Cost To Replace Injectors In A Duramax?

Can you replace just one injector?

Re: Replace one or all fuel injectors.


You can also just swap injectors with a “good” cylinder, if the problem follows the injector you know it’s bad..

What year Duramax has injector problems?

Premature injector failure was a critical problem for the 2001 to 2004 model year Duramax LB7. GM corrected the problem with an updated injector design and even extended the warranty on the new injector design to 7 years/200,000 miles.

What happens if a diesel injector fails?

Over time, diesel fuel injectors wear out and fail to close completely. When this happens they cause a leak-down, resulting in a reduction of fuel pressure across the fuel rail. This can cause a difficult- or no-start condition as well as a smokey exhaust.

How do you know when to replace diesel injectors?

Engine misfires can be a clear sign that you need to replace your diesel injectors as well. You can have one or two cylinders down, or it can just be a wiring harness as well, but it’s always something to check.

What are the signs of a bad fuel injector?

Dirty Fuel Injector SymptomsThe Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire. … Idling Gets Rough. Does your vehicle sputter and shake when you’re at a stop sign or sitting in traffic? … Your Gas Mileage Tanks. … The RPM Needle Starts to Dance. … Your Car Won’t Start.

What is the best year Duramax to buy?

2006-2007 2500 & 3500. Perhaps the most desired of all Duramax models are the ’06-’07 Classic body style trucks.

How long does it take to replace injectors on a Duramax?

12 hours is about average book time for all 8. Actual time spent will depend on the person doing it.

How much does it cost to replace injectors?

Depending on the make and model of your car, the average fuel injector replacement cost will run you about $800 to $1,450 for a full replacement. If you have the knowledge to do the replacement yourself, the parts alone are around $600 to $1200, while the labor cost is only about $200 to $250.

Can you drive a diesel with a bad injector?

Left too long, a faulty fuel injector can cause serious engine damage that requires major repair. Avoid the cost and hassle by using Rislone Gasoline Fuel System Treatment or Diesel Fuel System Treatment every 3,000 to 5,000 miles, depending on the type of driving you do.

How hard is it to change injectors 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. … Follow along as we right an LB7 engine’s most common wrong: bad injectors.

How do you know if your injectors are bad on a Duramax?

Symptoms of a bad, clogged, leaking, dirty or faulty diesel fuel injectors include:Starting issues.Poor idling performance.Rough engine performance.Inability of the engine to reach full RPM.Failed emissions.Pollution.Higher fuel consumption.Smoke coming out of the tail pipe.More items…

What does a bad diesel injector sound like?

Injector “rattle” can sound like noisy valve tappets, or rapid machine gun fire. The injector could be fouled by contaminant, or is seizing due to inadequate lubrication. … Sometimes a rattley, or pinging noise occurs under acceleration from cold, but will disappear after the engine warms up.

How can you tell if you got a bad injector?

Since these are a part of the fuel system, it’s important to watch for these symptoms to determine if the fuel injector is bad or failing.Engine Performance Issues. … Check Engine Light Comes On. … Vehicle Won’t Start or Struggles When Starting. … Vehicle Misfires. … Poor Idle. … Engine doesn’t Reach Its Full RPM. … Smell of Fuel.More items…•

Do I need to replace all injectors?

A–Fuel injectors can be expensive to replace in terms of parts and labor, but we do not advise replacing good ones. Sometimes all they need is a good cleaning. … Often, the injectors will misbehave in pairs, since one that draws too much current will take out the quad driver (transistor) that triggers both.

How many injectors does a 6.6 Duramax have?

8 injectorsDuramax 6.6L engines have 8 cylinders, Duramax 6.6L engines have 8 injectors.

How many miles will a Duramax last?

Most reputable organizations, such as the Association of Diesel Specialists, would agree that the 6.6l Duramax is one of the most reliable diesel motors available today. Provided proper maintenance, it can easily hit the 350,000 mile mark, with some users claiming 400-500,000 miles is the norm.

What is the most reliable Duramax?

Best Diesel Engine – 10 Most Reliable Units on the Market6.6L Duramax LB7 – Overall Best Diesel Engine. … 6.7L Power Stroke – Best Ford Diesel Engine. … 7.3L Power Stroke – Best Powerstroke Engine. … 6.6L Duramax LP5 – Best Year Duramax Diesel Engine. … Chrysler 3.0L EcoDiesel – Best Small Diesel Engine. … 6.6l Duramax LBZ.More items…