Reminds me of a 3/8 by 24 inch drive for sockets. I had the car in for a warranty problem at the worst GMC/Buick dealer service department. The best thing about the dealer is that they are long gone today. The problem was a heater and A/C issue. I had brought it back 3 or 4 times, got into a shouting match with the almost technician over how it works. Prior to the final visit I had rented the same year and model from Avis and the system worked expected, hence the shouting match. As I was leaving the lack of service advisor told me, "If you ever get it working the way you say, let me know how."
The following weekend I discovered the cause and instituted a temporary fix. After that worked well, I removed the A/C control head and removed some mold flashing from a plastic vacuum switch. A couple of scrapes from my electricians pocket knife and a rub with fingers to remove any chad. It was during this exercise that my tool box gained a 3/8 by 24 inch drive for sockets.
Then the beauty of this whole thing, I produced a 3 or 4 page report along with copies of pages from the official shop manual for the Buick. I sent the report to the Buick dealer with an invoice for 8 hours of 'Automotive' Consulting time at $25 per hour. I also noted that my normal rates for computer and network consulting was $200 per hour. (Which was what my company, GTE, sold my body for.) Then I sent copies to the Buick zone manager.
Two things happened as a result. One evening the zone manager called and we had a very nice conversation. At one point he told me that he was in tears from laughing so hard. The way that he put it was, "It doesn't take much of an IQ to be an automotive technician." A bit insulting but thinking of my BIL, an automotive technician, who spent a year or so at the guest of the state, the zone manager wasn't that far wrong.
The other interesting thing that happened was the Buick dealer refused to do any further work on my car and referred me to another near by dealer. As I said, the GMC/Buick dealer has since gone out of business. A real, genuine LOL.
And, I never got paid. But I didn't expect to, although I did enjoy raising that much H***. The only good thing about that Buick was that my kid totaled it and nobody was injured. And although it was a leased car, the insurance company gave me over $2,000 as a result of the car being totaled. At work my kid acquired the nickname, "Crash".
