Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Rick@Livernois
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Technical Camaro Topics > Audio, Video, Bluetooth, Navigation, Radar, Electronics Forum


Reply
 
Thread Tools
Old 09-09-2018, 10:35 AM   #1
metrogdor22
 
Drives: 2013 2SS M6
Join Date: Mar 2018
Location: USA
Posts: 67
Electrical woes: Alternator? Starter? Short?

Less than a year ago, I purchased a new battery for my car. A couple of weeks ago, that battery died and I replaced it with a new one. My car had trouble turning over for a few days before it couldn't even make it one full revolution. Thinking it was the alternator, I got a jump and took the car to Autozone to get tested.

They hooked their tester up, and the tester showed a bad battery. Unlikely, but it's under warranty and free to replace, so I did that. They gave me a new battery off the shelf. It wouldn't turn one full revolution again. They used their tester, which again showed a bad battery. Then they took another battery off the shelf, tested it as good, and then I put it in my car. The car started fine and I drove home.

This morning the car started and I drove around for a bit, but noticed some odd behavior: according to the voltage gauge on the 4-pack cluster, the battery had 13 volts when I started. Then after a few seconds of idling, it dropped to 11 or so, then went back to 12.5. I drove around while watching the gauge and it fluctuated between 12.5 and 14, but didn't seem to be in relation to RPM.

Most of these symptoms scream "bad alternator". Except that A) their tester showed the alternator was fine, and B) the car wouldn't start with one brand new battery. Maybe their tester is full of shit and one of the batteries they gave me was bad? What do you guys and girls think?
__________________
2013 2SS M6 - Custom cam w/ miscellaneous valvetrain upgrades, ported heads, longtubes, CAI, CTS-VR lifters, Forza NPP exhaust controller - 500hp/460tq
metrogdor22 is offline   Reply With Quote
Old 09-09-2018, 12:41 PM   #2
muffins4all
 
muffins4all's Avatar
 
Drives: 2015 Camaro 2SS
Join Date: Sep 2017
Location: California
Posts: 50
If your voltage gauge is dropping below 12.5 then the battery is having to provide energy to power the systems in the car.

So I'd say it's the alternator not giving enough juice to take over for the battery. Or your connection from the battery to the car is faulty somewhere.

Maybe go to another place to get the alternator tested? Cause your battery will eventually go dead again.
muffins4all is offline   Reply With Quote
Old 09-09-2018, 02:33 PM   #3
Leo72793
 
Drives: 2011 2SS/RS
Join Date: Feb 2016
Location: Jacksonville FL
Posts: 601
Check your grounds. Chances are they are NOT truly tight. I had this happen on a 05 ram. literally one ugga dugga and all issues went away.

Also, engine ground SUCKS.
__________________
•2011 Camaro SS 2SS/RS A6
•MRR M017 1le Replica Wheels
•Vararam Ram Air Intake
•Speed Engineering Longtube Headers
•Magnaflow HF Cats
•Bo White PnP Stage 2 TB
•Xpipe w/ Res Delete and NPP Exhaust
•Tuned By Anonymous Calibrations
•Gen5DIY Mylink Conversion W/ Backup Cam
•Morel 3 way custom speakers, Morel Subwoofers
•Audio control LC-6.1200 6ch amp
•Helix DSP Pro
Leo72793 is offline   Reply With Quote
Old 09-11-2018, 10:11 AM   #4
metrogdor22
 
Drives: 2013 2SS M6
Join Date: Mar 2018
Location: USA
Posts: 67
UPDATE:

I removed everything electrical I've done to the car and the problem seems to have gone away. I won't know for certain until the car sits for a couple of days, but I'll update later. I went ahead and bought an alternator ($230+$20 S&H) for reassurance.
__________________
2013 2SS M6 - Custom cam w/ miscellaneous valvetrain upgrades, ported heads, longtubes, CAI, CTS-VR lifters, Forza NPP exhaust controller - 500hp/460tq
metrogdor22 is offline   Reply With Quote
Old 09-11-2018, 11:42 AM   #5
beak81champ
ILSQ
 
beak81champ's Avatar
 
Drives: '13 2SS/RS
Join Date: Feb 2017
Location: Flatlands
Posts: 270
Quote:
Originally Posted by metrogdor22 View Post
UPDATE:

I removed everything electrical I've done to the car and the problem seems to have gone away. I won't know for certain until the car sits for a couple of days, but I'll update later. I went ahead and bought an alternator ($230+$20 S&H) for reassurance.
Did you notice anything blatant while you were removing things? Keep us updated.
__________________
Way too many mods to list, and just getting started...
beak81champ is offline   Reply With Quote
Old 09-11-2018, 12:09 PM   #6
metrogdor22
 
Drives: 2013 2SS M6
Join Date: Mar 2018
Location: USA
Posts: 67
Quote:
Originally Posted by beak81champ View Post
Did you notice anything blatant while you were removing things? Keep us updated.
No, I didn't see anything that struck me as unusual. Nothing was loose, nothing shorting, nothing looked burnt. For the record I removed the following:

* MSD 2-Step launch controller
* Dashcam hardwire kit
* Forza Componenti exhaust controller

The exhaust controller is the only thing that receives power from an always-on fuse, but according to the manufacturer, it receives a minuscule amount of power. As in, if you drive the car at least once a month, it won't be a problem.
__________________
2013 2SS M6 - Custom cam w/ miscellaneous valvetrain upgrades, ported heads, longtubes, CAI, CTS-VR lifters, Forza NPP exhaust controller - 500hp/460tq
metrogdor22 is offline   Reply With Quote
 
Reply

Tags
alternator, battery, short, starter

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:05 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.