1999 ford mustang 35. 3.8 v6

Asked by Jul 09, 2016 at 12:02 AM about the 1999 Ford Mustang STD Coupe

Question type: Maintenance & Repair

Battery cap dying only after it sat for 2 hours so
went and replace the battery went and got a brand
new alternator put it in car will crank fine but after
cutting it off and let it sit overnight the battery will
be dead but now as long as I unhook the positive
terminal the car will crank every day what would
cause this drainage

2 Answers

20,255

SOMETHING IS DRAWING/SUCKING VOLTAGE FROM THE BATTERY.. COULD BE A 10TH VOLT - 12 VOLTS... PULL ONE FUSE AT A TIME AND SEE /WATCH IF / WHEN THE DRAW SLOWS / STOP .

52,145

Look up on how to check for a parasitic draw. Kelly has the right idea.

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