Charging problems - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

dynawide100 · 03-20-2021, 02:06 AM

I have a 2014 2SS with approximately 61,000 miles and I'm experiencing the following charging problems. At times, my alternator seems to be charging at 12.4 volts and as high as 14.8 volts. My battery is only 1 year old and I just replaced the alternator. It was good for a few days of changing the alternator, staying between 14.4 - 14.8 volts. Now it goes back to the 12.4 volts. Sometimes it stays at that voltage and other times it will go back up. Sometimes it will start out good and then drop and go back up. Doesn't seem to maintain a steady output voltage. I'm thinking it might be my ECU. Anyone else experience this problem or have any suggestions?

romcjr · 03-20-2021, 07:08 AM

I see the same thing in mine . Hopefully someone chimes in with an answer .

0stones0 · 03-20-2021, 07:20 AM

There’s normally fluctuation by the alternator based on battery condition and what other accessories you’re running in the car. Lights, stereo, etc. Perhaps I’m not seeing the whole picture but, seems normal to me.

JD555 · 03-20-2021, 07:23 AM

That is normal. When the battery is fully charged it will drop down to 12.4 volts. When i start mine it will go to 14.8 for awhile and drop when charged. If I dont drive if for awhile it will go up to 15.1 and might take a few days of driving for it to drop to 12.4 if it even does.

dynawide100 · 03-20-2021, 07:36 AM

Thanks for the help. I've never seen that happen before on other vehicles that I've owned.

Aqua Blue RS/SS · 03-20-2021, 09:43 AM

Yep, completely normal from my observation, mine does the same. Never worried about it, never had any problems.

03-20-2021, 02:06 AM	#1
dynawide100 Dynawide100 Drives: 14 Camaro 2SS,L99, CAI intake, kook Join Date: Feb 2016 Location: Guam Posts: 7	Charging problems I have a 2014 2SS with approximately 61,000 miles and I'm experiencing the following charging problems. At times, my alternator seems to be charging at 12.4 volts and as high as 14.8 volts. My battery is only 1 year old and I just replaced the alternator. It was good for a few days of changing the alternator, staying between 14.4 - 14.8 volts. Now it goes back to the 12.4 volts. Sometimes it stays at that voltage and other times it will go back up. Sometimes it will start out good and then drop and go back up. Doesn't seem to maintain a steady output voltage. I'm thinking it might be my ECU. Anyone else experience this problem or have any suggestions?

03-20-2021, 07:20 AM	#3
0stones0 It don’t come easy. Drives: 2010 2SS RS M6 Join Date: May 2014 Location: WI Posts: 2,188 View My Garage	There’s normally fluctuation by the alternator based on battery condition and what other accessories you’re running in the car. Lights, stereo, etc. Perhaps I’m not seeing the whole picture but, seems normal to me. __________________

03-20-2021, 09:43 AM	#6
Aqua Blue RS/SS Drives: ABM #93 Join Date: Oct 2018 Location: Lotaburger Posts: 2,690	Yep, completely normal from my observation, mine does the same. Never worried about it, never had any problems. __________________ ABM #2399 2SS/RS:SOLD ABM #93 2SS/RS Black Rally stripes, Titanium Interior 4,000 miles: GM GFX side skirts and diffuser waiting on paint, GM dovetail, GM heritage, RPI ZL1 style splitter. ‘87 IROC-Z Iroc blue. all original unmolested with 50K miles.

03-20-2021, 07:08 AM	#2
romcjr Drives: Two 1984 Z28 / 2014 2SS/RS AGM L99 Join Date: Feb 2021 Location: WALLER , TEXAS Posts: 253 View My Garage	I see the same thing in mine . Hopefully someone chimes in with an answer .

03-20-2021, 07:23 AM	#4
JD555 Drives: 2014 2SS RS, 6 sp man Join Date: Feb 2016 Location: Marlton, NJ Posts: 461	That is normal. When the battery is fully charged it will drop down to 12.4 volts. When i start mine it will go to 14.8 for awhile and drop when charged. If I dont drive if for awhile it will go up to 15.1 and might take a few days of driving for it to drop to 12.4 if it even does.

03-20-2021, 07:36 AM	#5
dynawide100 Dynawide100 Drives: 14 Camaro 2SS,L99, CAI intake, kook Join Date: Feb 2016 Location: Guam Posts: 7	Thanks for the help. I've never seen that happen before on other vehicles that I've owned.