The grounds for the car, like engine ground location, chassis ground, etc etc... im having a charging issue. I've replaced alternator and battery 2 times, and I've replaced battery terminals, I've replaced alternator pig tail.. When I first start the car it volts read 14.2.. as I turn on headlights it drops to 13.6 and never recovers to above 14, then when I turn the ac on it drops lower to like 12.7v and never recovers back to 14v even if I Rev the engine and hold it it only climbs to 13.6v. I've change the serpentine belt thinking it may be slipping under a load but still sam issue. So I'm curious as to where the grounding locations are for the body, chassis, transmission ground, I've watch some how to videos on you tube to check to see if the car is properly grounded. What should the mustang be and how should I check it on a volt meter. A wire diagram would be great.
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