When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I can't even count how many times I've seen people on this board say, "caps don't work, don't waste your money." YOU'RE ALL WRONG! Capacitors DO work, but only in certain situations. For a detailed explaination, check out this other thread (which I wrote after reading this thread):
This explains exactly how capacitors work in an audio system, and outlines when they should and should not be used. They're not a general elixir, but they do work in certain situations.
TheWacoKid, If your alternator is putting out 12.5 volts, its voltage regulator is defective because they are designed for 14.7 volts. You should observe on your dash voltmeter 14.3 volts (or close to this) when cold and the voltage will drop to 13.3 (or close to it) hot. There is about 0.3 volts drop across the ignition switch contacts and the voltmeter reads after the ign sw. Measure the voltage across the battery terminals and compare it to the dash voltmeter.
:nonod: :nonod: :nonod: The old alternator I had in there(85 amps till it blew out, replaced with a 105) had the exact same voltage and the haynes manual I have says to leave it below 13 volts. BTW there is no stock voltage meter on my Lumina. I used a mm to test the volts.