Okay here as of recently I have been having issues with my car. Basically what is happening is that everyone once in awhile the car will start to loose voltage (monitor it on my SCT livewire). It will drop from the usual 13-14 volts to 8-9 volts while driving. At idle it will go lower and it sounds like it is mis-firing. It only does this every so often. When it drops to 8-9 volts my ABS light will flash, lights get really dim, and the radio shuts off. Once it sits for awhile after it happens it is fine, but it will not start right after this occurs. It is really weird.... Anyone have any ideas??? Thanks in advance.
Issue with battery voltage
- Thread starter srt4tocobra
- Start date
Well its either on eof two things:
1. Battery is dying/dead
2. Alternator is on its way out
What does the battery read when the cars off? What about under full load (radio, full blast ac, and all lights on)?
Like described above, but if above doesnt help problem,check ground cables and even fusible link wires.
Under full load my livewire reads between 13-14 volts. The battery is almost brand new, and I haven't checked the voltage when it is off. I was thinking the alternator is on its last leg, and now the battery is probably too because this has happened a couple of times now and it drains it pretty well.
Sounds like you have your answer. You can always take your car to Kragen or Autozone and have them test the alternator.
can it be tested with it on the car? for some reason I thought that it had to be off of the car. Just a question but why would my ABS be on and sometimes flashing when the issue happens?
gotcha thanks!!
aw that makes sense I had no idea that the ecu was capable of doing something like that. thanks
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