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    Thread: 12.6 on new battery; no start, locks malfunctioning, and possessed gauges

    1. #1
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      Exclamation 12.6 on new battery; no start, locks malfunctioning, and possessed gauges

      Vehicle: 2007 Chevrolet Aveo 1.6L MFI DOHC 4cyl

      The Problem: Got sister a new battery when the old one tested dead about three weeks ago. Yesterday the car went dead; no start, no dome lights, and no headlights.

      Today, before I could come over, she noticed a clicking coming from the doors that sounded like the lock solenoids repeatedly going off; this only happens when you lock the door, either by the fob or locking the driverside (which triggers the auto lock feature on the other doors). Further, we previously had a trunk that wouldn't unlock, even manually with the key. It now unlocks just fine.

      Played with the plunger on the driverside with the key in various positions, and it would trigger new glitches, such as the instrument panel gauges' "wiggling", or a loud clicking coming from the dash, kind of by the fuse panel. Battery read 12.6 volts, but still no starting or headlights.

      Tried to start and, it she says she saw a wisp of smoke come off one of the battery terminals. Jumped it and it came on just fine, and ran it for maybe ten minutes with all the accessories off. After shutting it off, the problems began again.

      I'm not even sure where to start. Security system? Power lock system? Bad battery? Ground issues?

      This is my sister's only car, and she's got a job and a 2-year-old that need her mobile as quick as possible. Any help would be greatly appreciated.

      EDIT: Pulled the door lock fuse, jumped the car again and let it run for awhile; all the same problems persist when I shut it off. Took the battery to Autozone and they said it was fine; only 88% charge, but it should be able to start the car. Got it hooked up to a drip charger right now to see if there's any change at 100%, but I don't know what else to try.


      Last edited by bodega1027; 07-13-2014 at 02:31 AM.

    2. #2
      What's wrong with my car?
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      Well, after the drip charge I reconnected everything and it all works fine now. Must just be one of the Chevy electric gremlins.
      Now to figure out what was draining the battery, but that's tomorrow's problem...

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      12.6 is ok, but what does it drop to during cranking? under 12v and the edu might not start the car.

      based on the slew of smaller issues, i would start looking for corrosion or burning in fuse boxes


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      Quote Originally Posted by petrified.rabbit View Post
      12.6 is ok, but what does it drop to during cranking? under 12v and the edu might not start the car.

      based on the slew of smaller issues, i would start looking for corrosion or burning in fuse boxes
      is it a Sedan or a Hatchback? because the 07-08 Hatchbacks were recalled for an electrical issue.

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      Daytime running light modules start to melt...

      my 06 Voltage running is 14.4-14.6
      While the car is off but key is in the acc position it hangs around 12.7-12.0
      while cranking battery dips to 11.1-11.5 depending on the battery voltage
      If there was a short a fuse should blow. if no other fuses are blown, think of the things that are not fused....


      I know a while back I closed my trunk, but the light did not shut off.. killed the battery quite decently. had to arrange things around in the trunk...
      Other issue I had was a quick amp install. 12V and remote were "accidentally" connected together for a short period of time (very low and slow draw)

      If you have time to invest, and cant figure out where it is....
      Connect a multimeter to the battery, And go through each fuse pulling it out, and placing it back in (to see if the battery voltage raises/ aka short or draw is removed from the circuit) Make sure to shut off the interior lights first (dont want a false positive).





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