Are there any problems with the Duramax injectors?

Are there any problems with the Duramax injectors?

However, Duramax injectors (in general) seem to be relatively sensitive to contamination and may fail prematurely if proper maintenance is not performed at regular intervals. It is extremely common for the injector wiring harness to chafe over time.

What kind of engine does a Duramax 3500 have?

Featured in the same 2500 and 3500 HD work trucks, the LML sported the same 6.6L turbo-diesel design that Chevy diesel trucks have been using since 2001. However, the LML was actually the biggest overhaul Duramax had done to the 6.6, claiming to use nearly 60% of freshly designed parts not used in previous version.

Are there any problems with the Commons 6.6L Duramax Diesel?

Common Problems with the 6.6L Duramax Diesel. 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. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.

What causes a Duramax LML engine to die?

Small aluminum bits can shave off of the internals of the pump and then get circulated through the whole fuel delivery system. The fuel rail, the injectors, fuel lines, etc. all will have metal shavings circulating throughout. Once this happens, the fuel pump will fully die, leaving your engine starving of fuel.

Do you need to change the fuel injectors on a Duramax?

No different from Cummins-powered Rams and Power Stroke-equipped Fords, each rendition of the Duramax has its own unique weakness that requires addressing if you want to rack up hundreds of thousands of trouble-free miles. For LB7 models, you’ll want to ditch the original fuel injectors in favor of Bosch’s updated units.

Which is the best engine for a Duramax truck?

There are a ton of bolt-ons that make driving a Duramax-powered ¾-ton Chevy or GMC much more fun than operating a 7,500-pound pickup should be. Already the quickest trucks out of the box among the Big Three, it doesn’t take much to keep them at the front of the pack.

What happens when the LB7 injector goes south?

The result is an injector that essentially never shuts off. Hazing smoke at idle, excessive injector balance rates, knocking, missing, fuel in the crankcase and piston damage are all commonly experienced when an LB7 injector goes south. A word of advice: When one does decide to check out, replace them all.

Is there an upgrade for every Duramax truck?

If you can only treat your specific Duramax to one upgrade, make sure it’s this one. At this point, there probably aren’t a ton of LB7 trucks still sporting the original injectors they left the factory with, but you can bet there are some. That’s reason enough to make this priority numero uno for ’01-’04 Chevy and GMC HD owners.