Have you seen this one in the service manuals?
It's been there forever and it's really getting to bug me.
Too often I find the techs are adhering to this procedure even though, in their hearts, they know it's not going to fix the problem.
I had another one just yesterday. We were asked to pickup a PCM (GM vehicle) so the service tech could try it and see if the new unit fixes the problem. After much scrapping with him and the service manager I was forced to give in and get the new unit at another dealership. Well - it didn't do it!
The next step in the diagnosis/repair procedure did fix the problem. A bad crank sensor.
During the argument before procurement process I was informed that he (the tech) would rather have us blow $350.00 on a PCM than possibly lose that flat rate hour.
I had a "private" conversation with the service manager this morning and his response was "that's what the service manual says to do". Lack of concern on their part for the capital outlay really bugs me.
Does anyone else experience this? If so, what do you do about it? Sit on the part and hope you'll use it somewhere?