On Sun, 28 Feb 2021 03:15:28 +1100, "Fred" wrote:



"Ralph Mowery" wrote in message
...
In article ,
says...

Makes no sense to require formal qualifications.

I'lL call you on your BS
The OBDII tells you what reading is out of spec. That is ALL it tells
you. It takes an educated professional to know what can cause that
reading to be wrong and how to test and PROVE what the problem is
instead of throwing half a dozeh expensive components at the car, then
cross their fingers and hope they didn't STILL miss the real problem.
That's why the "pinpoint tests" in the factory manual for a given
error code can cover 7 pages in the factory manual - and why the print
version of a typical factory manual con be over 6 inches thick. (and
cost several hundred dollars - and why they are virtually all now in
electronic format indexed 7 ways to sunday) Many won't fit on a CD any
more - and some require double layer DVDs.
Servicing variable valve timing and gasoline direct injection, not to
mention computer controlled transmissions and turbocharged engines and
anti-lock brakes, and active colission avoidance, and traction control
- and canbus controlled door locking systems - and even tail-lights
with computers in them -
Good luck sucker of you don't have a well trained mechanic working on
it. Just the electrical wiring will blow the mind of most "mr fixits"
- whenthe doors lockand unlock by themselves driving down the road -
or the alarm goes off in the middle of the night - or the windows go
up or down by themselves (or don't when you want them to) or the car
won't start or the doors won't unlock (or lock) from the FOB - or the
airbag light comes on - and particularly when the problems are
intermittent - - -. There are no "adjustments" any more - sure. They
require less scheduled maintenance - for sure - but those are the
SIMPLE jobs that the uneducated guy with grease under his fingers and
a $50 tool kit could do.


What an ignorant ass


Engines are getting more complicated all the time. I just bought a John
Deere x590 lawn tractor. The engine on it is fuel injected. All kinds
of electrical wiring to make it work. That is just for about a 25 hp 2
cylinder engine. While it would not take a 2 or 4 year college type
course on that, I would think that some few days of training from the
factory would be needed to work on it.

You'd be wrong. Plenty of decent mechanics do what is necessary
with fuel injected cars now without any training at all.

Yes, plenty like you do the shotgun approach when say
the engine is running rough, changing everything that is
easy to change to see if that fixes it, first the plugs, then the
leads etc but that's not how the best mechanics do things.

Anyone with any real diagnostic skills considers what
can produce the symptoms seen and sees if the OBD2
has anything to say about what has failed. You don't
need training for that, just be a competent diagnostician.

As to cars I am sure most anyone could do the simple
jobs like brakes and plug and light bulb changes,

And that's all that needs fixing with most modern
cars before you replace it for other reasons.

but once anything gets into the electrical system it will
take a lot of training and skill to solve the problem.

That's bull**** on the training. It isnt hard to check the plugs
to see if one of them looks bad and to try moving them around
if they look fine. And to try new plugs, that doesn't cost much.

Same if one of the electric windows stops working or the battery
goes flat much more quickly than it had done when it was new.

I bought a 1972 Dodge Demon. It had some kind of electrical
system for the engine that was relative new. That car about once
every week would not start. The engine would turn over, but
would not fire off at all. Could do it to the battery would almost
run down and finally it would start except about once a month
it had to be towed in as it would not start. As it was a manual
transmisssion funny thing was that after the battery would almost
run down, it could be started by puahing it off very easy.

Sure there will always be some curly faults, but a decent mechanic
doesn't need training to fix them, just decent diagnostic skills.

I had it back a number of times and finally at about 18,000 miles traded
it in for another car. I had made a mistake of paying cash for that car.
Had I not , I would have let it go back after the 2 nd month I had it.

Yes, you are one of those that need training. Decent mechanics don't.