The time I tried chasing a fuel pressure issue on an older Cummins ISX and swapped three sensors before finding a $12 crimp fitting that was loose under the cab.

Spent last Saturday in the shop tearing my hair out over a 2015 ProStar that kept dying on hills, only to realize a bad ground connection at the frame rail was the real culprit, and now I'm wondering how many of you check every single connector before throwing parts at it?

2 comments

2 Comments

wesleyburns14d ago

Used to be the type to swap sensors first and ask questions later. Had a Volvo D13 that kept throwing low power codes, burned through two fuel pressure sensors and a turbo actuator before I found a rubbed through harness under the air cleaner mount. That one taught me to check all the wiring and grounds before touching any sensor. Now I keep a test light and multimeter in the cab and go straight to chasing connections.

spencer66413d ago

@wesleyburns that harness story just flipped my whole view on sensors.