also something really dumb is that the terminals on replacement batteries are slightly smaller the the OE. so often times they simple dont make good contact unless you bulk up the terminal with something conductive.

Stop guessing and randomly replacing shit, and get your fecking multimeter out.

Or don't, since the problem is fixed and done.

Please read thread before commenting. Starter and ground needed to be replaced anyway. Problem has been resolved. Mods please close the thread

Well, im an idiot.