wa8yxm wrote:
Do different shops.... Well, YES.
Some shops have a bunch of 20 something kids just out of grease monkey school who basically have a problem telling the difference between a piston and a valve.
Some shops have a 50 something gruff old guy who has been working on motors since he souped up his go-cart back in his single digit age days and who can tell what's wrong with your engine just by the sound it makes as you pull into the lot.
Ok, I exaggerate a bit, but that is not far from the truth.
When my 8.1 had that same kind of problem no codes were set by the ECC, the Check Light did not come on.. But the 50 something's gruff old guy found it in less than 10 minutes.
No truer words have been spoken!!! Today's new mechanics are nothing more than parts-swappers. They have no idea how to diagnose a problem and actually fix it. They read from a troubleshooting chart either on a computer or in a book and then start swapping parts until the problem stops. And if an engine doesn't throw an error code, there's nothing wrong with it. It can't be, right? I mean the engineers designed the thing so that if something were wrong it would tell you. Technological advancement is not always an advancement. I'll take an old 60's engine without a computer any day. :D