Watching a guy in a Toledo shop fix a 6.7 Powerstroke with just a multimeter changed my whole approach

I was helping a buddy at his shop last month when this old timer came in with a no-start on his Ford. The shop foreman was ready to start swapping sensors, but the old guy just grabbed a multimeter and started checking voltage drop at the FICM connector. He found a bad ground in under ten minutes, something we would have missed for hours. I used to think you needed a fancy scan tool for everything, but now I always do the basic electrical checks FIRST. What's the simplest diagnostic trick that's saved you the most time?

2 comments

2 Comments

morgan91519d ago

Honestly that multimeter story sounds great but most modern stuff needs a scan tool to even talk to the modules.

johnrivera19d ago

Nah, you can still fix a ton with just the basics.