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Showing results for tags 'voltage drop stop'.
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Voltage Drop When The Car Comes 2 A Stop
Truconcept posted a topic in Amplifiers / Head Units / Processors / Electrical
Hi 99 Oldsmobile Alero Yellow optima up front and one in the rear Powerbastards 220amp alt knu 1/0gauge (+ and -) front to back, big3 as of today. no fuses. problem persists Im getting a drop from 14.4 to as low as 13.2 when I bring the car to a stop Sometimes it stays at 14.4 when I stop but most of time it dont 13.2 is about as low as it gets, its random and sometimes doesnt drop at all I only get this reading from the rear battery I dont have any of my amps connected, no sound, still a drop The rear battery is grounded to the negative in the front I have also tried grounding the rear battery to the point under the seatbelt bolt that i have used before (no luck) The front battery is grounded to some metal thing thats bolted to the side of the engine Im sorry I cant be more specific The mechanics who put my alternator on made that the front batt negative ground They are good so Im gonna assume thats a legit spot When I start the car I get a 15-15.2V reading but Im just assuming thats from the freezing weather reducing resistance Any ideas?