Ramcharger electrical troubles

Dubob said

You said you cleaned grounds on turn signal circuit. But what about battery to block, chassis ground? Sitting outside damp I’d start with making sure all grounds are good. Not sure how the dash grounds to chassis but I’d make sure the instrument cluster and column has good grounds as well. Ground issues cause some weird things. That’s a roll of the dice on my part.

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I was thinking this as well. Looked at my battery ground to body at the buttsplice. I will cut it and solder it today after work. It looked dirty to me. I will actually clean any ground I see. I was looking through my FSM for it and it showed several locations and I will check them all.
In have seen with A/C power dirty grounds or neutrals cause some wonky stuff and I imagine DC power will be similar if the connection are dirty/corroded etc...
Thanks!