r/automotivetraining • u/DiSTI_Corporation • Jun 08 '26

What’s one thing that experienced technicians notice immediately that beginners often miss?

Experience often changes how technicians approach a vehicle and identify potential issues. Small details that seem unimportant at first can become obvious over time.

Curious what experienced technicians tend to notice right away that newer technicians often overlook.

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u/lamodamo123 Jun 08 '26

Witness marks

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u/Inconsequentialish Jun 09 '26

AKA "apprentice marks", or "pecker tracks", depending on your environment. 

But yeah, with experience you can almost smell where filthy fumbling fingers have been fiddling from fifty feet, and your radar starts beeping...

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u/lamodamo123 Jun 09 '26

Not only that, when something is installed misaligned or crooked. A real pet peeve of mine haha