Shoutout to the old timer who called my injector diagnosis

I had a 6.7 Powerstroke with a rough idle and a code for cylinder 3 misfire. I was sure it was a bad injector, so I ordered a new one. This retired mechanic named Ray at the parts counter told me to check the UVCH connector first, said he'd seen it a dozen times. I blew him off, swapped the injector, and the problem came right back. Sure enough, after wasting $300, I pulled the valve cover and found a pinched wire in that exact connector. Has anyone else had a Ford talk them into throwing parts at a simple wiring issue?

4 comments

4 Comments

joel_clark3728d ago

Used to think chasing wiring gremlins was a waste of time compared to just swapping the known bad part. Honestly, this exact scenario with a 7.3 taught me the hard way. Now I check every connector and ground first, no matter how sure I am. Tbh it saves so much cash and cussing.

murray.jana27d ago

Yeah that 7.3 will humble you real quick lol. Learned the same lesson on an old OBS truck, threw a new CPS at it three times before I found the chafed wire behind the valve cover. A cheap multimeter and fifteen minutes tracing saves a fortune in parts you didn't need.

the_simon13d ago

It's the same with so many things, not just trucks.

max_torres4427d ago

Totally agree with checking every connector and ground first. That habit turned my whole approach around after my own 7.3 headache. I started making a simple checklist for the common failure points before I even pick up a wrench now. It feels slow at first, but you're right, it saves so much money and time in the end. That quick visual inspection can stop you from buying a part you don't need.