What happens when you replace a Duramax fuel injector?

The good news is the replacement injectors you purchase from us incorporate several updates to help prevent repeat failures. The LLY Duramax injectors usually fail high fuel return rates, which cause hard starting and rough running, especially noticeable at idle. How many injectors does a 6.6 Duramax have?

Why did my GMC injectors have to be replaced?

A red flag went up in the owner’s mind because the GMC had been bought from a private owner who claimed that all eight injectors had been replaced prior to the sale. The current owner called a mutual friend of ours who works as a heavy-duty mechanic for a local construction company.

Are there any problems with the LLY Duramax?

In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.

Is the BD Power premium fuel injector OE replacement?

Remanufactured with the same exacting standards as BD-Power’s highest performance injectors, the Premium Remanufactured Fuel Injector is an OE replacement. Built with new Bosch solenoids, nozzles and control valves, this Injector is carefully tested and calibrated to ensure quality.

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.

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.

How long does it take to replace a Duramax injector?

Replacing all four injectors required removing both right- and left-bank rocker arm covers and the overlay of wiring harnesses and ducting covering of each. Quoting from one source, the labor time for removing and replacing both covers is about 9.2 hours for “severe service” cases.

What causes a fuel injector to stop delivering fuel?

An injector becomes clogged with fuel varnish deposits and fails to deliver its normal dose of fuel when it’s energized, or. Fuel pressure to the injector drops below specifications because of a weak fuel pump, plugged fuel filter or leaky fuel pressure regulator.