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New to the site and will have a few different diesels starting with an 04 Duramax LLY--Doing a little injector work and is the first time on this model so have learned a bit like they switched engines in mid year. Think I am on the right track,waiting on O Rings and few odds and ends--Had low voltage and performance on#4 cyl so pulled injector and checking wire ends. Any tips before I get parts would help.

Welcome to the site.

Tony:tu: