When did the Duramax diesel fuel injection system start?
Many owners were a bit lost with that system and a few technicians too. Then they progressed into a fully electronically controlled common-rail diesel fuel injection system in 2001 with the Duramax. Historically, this move really did leave behind the diesel techs who were not motivated to progress with technology.
What to do with a broken line in a Duramax Diesel?
You can open a can of worms trying to replace the return lines at the injectors, the lines snap into the injectors with plastic tees that love to break off in the injector,I have had luck heating a screw and melting it into the broken piece for extraction. I usually disassemble a new line set and replace only the leakers individually.
When was pilot injection introduced in LLY Duramax?
Pilot injection, a new injection strategy that will be discussed in further detail later, was also introduced. During the middle of the 2004 model year, the LLY Duramax advanced fuel system technology somewhat by using more robust injectors. The big plus was that the injectors were now mounted outside the engine.
Where does the fuel leak go on a Duramax?
Fuel leaks on a duramax are almost always on the return side of the system, the smaller of the two fuel lines traveling down the frame rail, going to the fuel cooler and back to the tank. They can leak at the cloth covered rubber return lines at the injectors, these lines can only be replaced in sets left and right side, they are expensive.
Many owners were a bit lost with that system and a few technicians too. Then they progressed into a fully electronically controlled common-rail diesel fuel injection system in 2001 with the Duramax. Historically, this move really did leave behind the diesel techs who were not motivated to progress with technology.
What did the injector fail on my 2003 Duramax?
Was recently out of town in a friends 2003 Duramax during which, one of the injectors failed. Called the local dealer and they told me to bring it on in, and since I was from out of town they would get right on it.
What kind of fuel injector does a Duramax 6.6L use?
Restore performance in your 2001-2004 GM 6.6L Duramax LB7 with the Bostech DE651 Silver Series Remanufactured Fuel Injector. Bostech Silver Series LB7 Fuel Injectors are 100% disassembled, then each component is inspected, polished, and certified to original specifications.
You can open a can of worms trying to replace the return lines at the injectors, the lines snap into the injectors with plastic tees that love to break off in the injector,I have had luck heating a screw and melting it into the broken piece for extraction. I usually disassemble a new line set and replace only the leakers individually.