No quallys at all but i can strip a car in my sleep. Putting it back together better than it was aswell
I am strictly old school and No mechanic either, I am a Fitter.
I used to buy a car for about 10-30 quid from the local scrappy and then fix it up to boot round the streets. Booting a banger means you need to repair, tweak etc on a weekly basis. This taught me all i know.
A college taught mechanic may be full of specs and facts but give him a real life situation to sort and he is well out of his depth.
Chuck him on a drive in the rain with limited tools and no air and he will get up and walk away.
Same as these modern cars, unless you have the right software and plug attachment you may aswell set fire to the thing.
My advise to anyone considering this field is find a Mentor (sp?)
I've had a few and these dudes are special. There's me struggling with something they pop over tap this heat that and away it goes. There are a few techniques that need to be taught from an Old experience head/hand but the rest you can just pick up on the fly.
As far as all the technical data it looks Mighty impressive when posted on forums but unless you are actually working on that particular car it don't mean ****.
Nobody and i mean Nobody knows everything you just adapt what you know when you need to and research data when you have to.
All these long lists of data and specs that are posted in forums such as these are just to impress the readers.