Hey I was just curious how many miles you guys get on your lb7 injectors. It sounds likes its pretty varied but mine has 85k on the original injectors and I was wondering how many miles I should be expecting on them. Let me know!
According to my truck's records, the original set was replaced at 140k, the right bank at 160k, a single at 174k. It had a bad one when I bought it at 180k which I replaced, and added a lift pump and cat filter, and started using 2 stroke oil. Another one went out at 189k, and I replaced the whole set with 30% overs. 195k now and I'm sure these have 100k in them.
I am original owner of 2003 and have 160000 miles and i am in work changing mine. They haven't gone out but the balance rates are off a little as i was told. I have the time to change them so i don't get ripped off during vacations.
I got about 18k on the first set, and GM gave me a complete new set. Those went another 117k (and I had to buy them myself-no warranty) so, I am on my third full set, with about another 18k on them and the balance rates are fine so far.
First set at 53k 2006
second set ta 78k 2007
third set at 144k 2008 this set went bad due to the tech pluging the fuel line
forth set at149k 2009
Fith set tbd my guess will be at 190k seeing im at 17xk right now
gota love free injectors,fuel lines and cp3 and another 2 years added to the warranty of the motor