Help diagnosing battery issue
#1
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Help diagnosing battery issue
My S4 vert is completely dead -- no door lights, no beeps when the key is in, nothing. If I jump it, it will start right up and run fine, and after turning it off I can crank it again right after, but after sitting for a while it's dead again.
I'm not sure if something is all of a sudden leaching power from the battery, if the battery is just done, or if maybe the alternator is the problem. I don't know much about auto electrics, but I do have a voltmeter so if you can offer suggestions about what to probe, I can check and narrow down the problem.
After a jump start, the voltmeter on the dash reads about 12.5, which seems a bit low to me. But again, I know nothing.
Thanks!
I'm not sure if something is all of a sudden leaching power from the battery, if the battery is just done, or if maybe the alternator is the problem. I don't know much about auto electrics, but I do have a voltmeter so if you can offer suggestions about what to probe, I can check and narrow down the problem.
After a jump start, the voltmeter on the dash reads about 12.5, which seems a bit low to me. But again, I know nothing.
Thanks!
#2
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If you dont know when the battery was last replaced, it probably needs to be replaced.
After the new battery see if its still dying overnight.
#3
Rotary Enthusiast
I had the same issue, I unhooked my battery and charged it and then I would touch the positive cable to the terminal on the battery and I would hear a click up around my headlights, so unhooked my headlight motors and the click was gone and I haven't had a drain on my battery since.
#4
Eats, Sleeps, Dreams Rotary
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If your car has an old factory alarm in it, tear that crap out,
I had a similar issue with my Mazdaspeed Protege. I wish I could take back all the time and money I spent before I finally realized it was the 15 year old alarm finally taking a crap and killing my ignition.
I had a similar issue with my Mazdaspeed Protege. I wish I could take back all the time and money I spent before I finally realized it was the 15 year old alarm finally taking a crap and killing my ignition.
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ChrisChung125
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12-23-04 12:03 PM