I thought that was your sole domain.
If you only had a dollar for every trouble-shoot thread you've solved...
Had to troubleshoot the Chrysler a couple days ago. Drove it a couple times during the day and in the evening went to go home and it was dead.
Headlights came on, idiot lights came on when turning the key, but nothing from the starter. New battery still fully charged,, and the starter hadn't been acting up, so no forewarning it was dying. No (new/additional) loose wires under the dash. Jiggled the shifter out of habit, turned the key. Still nothing. Tapped the starter with a hammer, as sometimes the brushes get stuck "in-between". Nothing. Neighbour who suggested tapping the starter says "You sure it's in park or neutral?"
Sudden flashbacks to being 16-yo with the family Olds Delta 88 that had a finicky shift-arm; sure enough, Chrysler's shift lever was between park and reverse. Moved it fully into park and the 383 fired right up.
Showing the Windsor off, again.
It's the simple little things that get you most often, it seems — an in-between shift lever, an empty socket on a PCB...
Say, didn't Def Leppard have a song... went something like: "Sp sp sp Spoolin' Won't you solder with me awhile...".
Then there was "Spool for your love" by ... Neil Young? Dianna Ross? Mickey Gilley!
Next on Car-O-Rama ... Spoolin' up the turbo!