My battery keeps draining every time i let the car sit for a few days without driving it. I have replaced the battery so I know that isnt the problem, and the only aftermarket thing i have done to the electrical is the speedcal. Does anyone have any ideas what might be wrong or does anyone know how I can test for a drain on the battery.
battery drained
- Thread starter JD2001GT
- Start date
BlackGT4.6
New Member
I have a similar problem I have narrowed down to the amps on the mach 460 they are not shutting off with the car
Marks5.0!
Founding Member
speedcal is on all the time, but shouldnt be draining the battery very quickly, my car has sat for a couple weeks without being started a few times and it cranks right over just like normal. this is with a speedcal hooked up as well.
03ghoststang
Well-Known Member
you can do a parasitic drain test which means, hooking up a volt meter that can read amps with one lead (-)having an alligator clip hook it to the neg battery cable and the point of the other lead (+) to the negative post. Then disconnect the neg. battery cable with out removing the leads form the DVOM and check how many amps do you have, then you can pull fuses to see what is draining your battery
Check for a loose wire not connected to anything in the trunk. We took my dad's Bullitt to back to Ford under warrenty 3 times before they got it straightened out. It was a spare wire in the harness that grounded out and it kept the GEM awake. At least thats what the mechanic told us.
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