I have known of my share of dishonest and/or incompetent mechanics over the years, but honestly I truly believe that most have their hearts in the right place and just want to fix the vehicle the best they can. Maybe I am just naive, however I think it is unfair to lump all mechanics in the dishonest category.
I will say that many mechanics probably do not always have all of the possible diagnostic tools available at their disposal unless in a dealership setting. They are working against the clock to try to make a living and I feel this is the biggest downfall to the repair industry.
Years ago C&D Battery which makes huge lead acid batteries for substations, cell towers, missile sites, telephone head-ins ect.. started paying their employees piece rate, production went up, quality went down and the employees pay stayed around the same or may have increased or decreased slightly.
While short term the company margins improved, it was quickly negated by a huge increase in warranty claims. They were cranking out garbage.
I do not fault the employees as they were basically put into a position at the start of their shift they were put on a proverbial treadmill and had to keep up the hectic pace to pay the bills. I would have had to do the same thing. No one could afford to slow down to ensure quality. I would have to do the same thing as those folks did.
I feel this is probably the case in the automotive repair industry.
Intermittent problems are hard to track down in any field, and I believe in the automotive repair field its harder than most.
Emotions are running high, its probably best for everyone to step back, take a deep breath and carry on. The mechanics here have no dogs in the race so to speak, they are not going to make any money off anyone's issues here. In the end it really doesn't matter to anyone here if your vehicle is fixed, or I prefer drum brakes or joe blow says this or that. For me its a forum for entertainment, learning, debating (Not arguing!), and reminiscing.
Sometimes when you read something posted its hard to tell what tone is trying to be used, that the joy of forums I suppose. One person say something and it may be misinterpreted or it wasn't posted in the most clear manner and next thing you know everyone is angry. I don't know how many text messages have caused fights between my wife and I because of misinterpretation.
THIS is the issue. Hit the nail on the head and I feel most will agree with this statement. The system is broken.