
Originally Posted by
relatively normal
So, a lot of you mention about the fact that apprentices arent what they used to be, the education isnt what it used to be etc. They are just 'fitters' now and only 'replace what the computer says'.
But cars, trucks, heavy lifters, movers, diggers etc have also moved on. Technology changes. As it has in almost every industry. While the main fundamentals of these machines stays the same. Where a car in the 70's would be run on carbs, a car in the 80's would have Injection system.
My point is that you wouldnt trust a doctor to perform surgery without some of the equipment required these days. If he has no record of current pulse or pressure how is he suppose to work? Ok, maybe bad example, but i think you get the idea. With a cars computer if there is no fault codes, and the fault doesnt seem to be currently present, such as an auto gearbox harsh gearchange, how does the technician diagnose?
Also a lot of the time, even though the computer provides fault codes, it far from tells you what to replace and why. A Lambda/Oxygen sensor fault could could be far from simple to diagnose. It could be a multitude of things causing that particular fault. Its the same with Cam/Crank shaft sensor faults etc etc etc again you get the idea.
He does it the old fashion way, takes the car for a drive, listens to what is happening, this comes with experience, learning how to diagnose without a computer, just being able to find faults with something as little as a multimeter, or test light.
Computers are part of the process, but not all you need as some of the techs I've delt with over the years of owning our D2 and D4 think.
The tech we were dealing with told me that the MAF was fine because the computer said it was, I asked him had he tested it by getting flow details or amp output, he said no you don't need to these days, well guess what it was faulty and all it needed was cleaning.
We had an issue with our gearbox just recently, as it was almost out of warranty, we figured we would take it to the dealer to see if they could find what was wrong, it had a slight vibration just as you start to excellerate lightly, of coarse they said it was fine, no faults, they all do that
So down to the local auto expert, his diagnoses, after taking the car for a drive and experiencing what I had said, he drained the oil and said that the gearbox had overheated at some stage and the oil was burnt and had lost viscosity, so changed the oil, all fixed.
You tend to get a bit tired of hearing there's nothing wrong, when you know full well there is and that there are other ways of telling if a part is faulty, yes intermittent faults are hard to pin down, but not impossible, if a customer comes in three or four times with a problem, common sense should tell you there is a fault with it, you shouldn't be told there's nothing wrong because the computer says there's nothing wrong.
I think they are just to lazy to put in the effort to really find the problem and just don't give a flying **** about the customer.
Baz.
Cheers Baz.
2011 Discovery 4 SE 2.7L
1990 Perentie FFR EX Aust Army
1967 Series IIa 109 (Farm Truck)
2007 BMW R1200GS
1979 BMW R80/7
1983 BMW R100TIC Ex ACT Police
1994 Yamaha XT225 Serow
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