Voltage Output Too High

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=86778
Printed Date: May 04, 2024 at 9:50 AM

Topic: Voltage Output Too High

Posted By: dafreakinrican0
Subject: Voltage Output Too High
Date Posted: December 07, 2006 at 11:31 AM

I currently have a 2005 Pontiac Grand Prix GT with two 12" Kicker L7's wired down to 1 ohm on a Kicker 1200.1 one ohm stable amplifier. When I have my volume playing at a high level, my audio amplifier cuts off and goes into protection mode. I went to trouble shoot with my DMM and i am getting voltages around 15.0 - 15.9. This is a very high voltage for a STOCK electrical system. I have had this same set up in an older vehicle, and it was fine. It only happens when i have my music slightly louder, and it seems to me that my alternator may be outputting too much voltage after a bass note hits. Im thinking about possibly trying a new ground, and i am going to do the BIG 3. If anyone has any input please let me know :)

Replies:

Posted By: umgixxer
Date Posted: December 07, 2006 at 2:50 PM

where are you testing your voltage at

Posted By: dafreakinrican0
Date Posted: December 08, 2006 at 12:05 AM

Voltage is being tested at the amp wiith the dmm and amp being grounded to the chassis. someone PLEASE chime in.

Posted By: jeffchilcott
Date Posted: December 08, 2006 at 1:03 AM

It almost sounds as if the voltage regulator is not functioning properly on your alternator, if you have a local oriley auto or other many will test the alternator free of charge..

Or look in your manual and see what you alternator should be charging at, I know that a standard wet cell battery should not be charger higher then 14.8

The kicker amps will take 15.5 but the closer you get to 16.0 you will have problems

-------------
2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
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Posted By: dafreakinrican0
Date Posted: December 08, 2006 at 1:09 AM

Thats what i was thinking (voltage regulator). Ill have to have the output of the alternator load tested and see. I wonder if the dealership will try and fight with me for a new regulator/alternator. I NEVER thought i would see the day i would complian of too high of a voltage level, lol.