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Watched a guy at the hangar in Boise trace a fuel gauge fault with just a multimeter and a wiring diagram printout
A few weeks ago I was at a hangar in Boise waiting on a part when an old timer was chasing a fuel gauge that read full when the tank was empty. He didn't swap the gauge or the sender, he just pulled the wiring diagram, found the ground splice behind the panel, and rang out each wire in about 20 minutes. Turned out one pin in a cannon plug had backed out just enough to lose contact, and he re-pinned it with a $3 contact and a $12 tool from his box. I had been about to order a $900 sender on the last one I touched, and it made me feel like an idiot. Now I print the schematic before I open anything and mark every connector I touch with a paint pen. Has anyone else had a cannon plug pin back out on them like that?
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