Back when my Chevy was coming close to the end of my Extended Warranty, I wanted them to check the balance rates on the Injectors. As I knew the service writer pretty well, plus knowing the key words to use, I was able to get them to do it for me.
The Diesel Guy had quit a moth or so before soi asked if they had another one yet, I was told yes and that he was "Highly" Trained.
This is still an old fashioned type of dealership where you can actually walk into the service bays, with asking before of course.
So, I walked over to this "highly Trained Tech" and asked him how he was making out. He said he couldn't figure out how to run the tests with the Tech 2 (IIRC). Now the past Diesel Guy had showed me how to do it, so I asked this guy if I could show him how to do the test, which he did. He even thanked me!
I was sitting with my Friend the SW when the tech came in and said "he" checked out everything and it's all in great shape.
That was the last time my truck has been or will be back in that shop!
