Quote:
|
Originally Posted by GMMerlin
I love it when people find some info on the internet and they now believe they are self proclaimed experts.
Unfortunately the truth is for most failures, freeze frame/ failure records are usless most of the time. Being able to duplicate the concern and taking a snapshot of what was happening before, during and after the event is a more useful piece of diagnostic information.
The problem with aftermarket code readers and interfaces are they for the most part only read PCM information.
Todays diagnostic strategies and communication protocals rely on cross module communication and most importantly proper power and ground integrity.
Diagnosing an automotive concern isn't as easy as "hooking up the computer and reading codes".
Many faults do not store codes and this makes then even more difficult to diagnose.
An intermitant stalling concern could be caused by a communication failure between 2 modules or something as simple as a bad connection at the battery.
I can tell you that after 22 years working for GM , my "gut feeling" is a much better indicator...especially if I have seen another vehicle with the same symptoms as what you are describing.
Sometimes technology is no match for experiance.
|
That's great! Can I post that at my service desk? If I had a dollar for everytime someone came to me wanting to "hook there car up to the computer" I'd be writing this from my recently purchasd carribean Island!
Chris