Cranks but won't start. Unplug ground at field spade on Alternator and it starts?
Sprayed contact cleaner on all female connectors, moved spade terminal in/out sprayed some more, used miniature wire brush got them shiny.
Engine harnesses are M&H put on around 2009 or so. Used miniature wire brush to get male connectors shiny even though already clean.
Female red wire battery bulkhead terminal had corrosion. First picture was after I sprayed contact cleaner on it and used needle nose vice grips to push a male Packard 56 terminal in and out at which time terminal pushed into car cause tab on terminal not bent up enough to hold it in housing. That red wire female terminal was not fully seated in firewall housing when no start issue occured. But seating it a week or so ago did not fix it apparently due to corrosion.
Sprayed contact cleaner on all female connectors, moved spade terminal in/out sprayed some more, used miniature wire brush got them shiny.
Engine harnesses are M&H put on around 2009 or so. Used miniature wire brush to get male connectors shiny even though already clean.