for a while i had my type R running off my alpine MRD-M605 amp, and it was hitting really hard..then all of a sudden the voltage on the amp dropped down to 12.1 volts, from 14.7, my sub started bottoming out on low end bass notes, and was not loud at all. and im stumped. i dont know what could have caused this. is it time for a new alternator? a HO one? because my headlights did dim a little bit, but nothing bad. and now i have no clue what to do.
i would definately have your charging system check i.e. your alternator and if its crapping out you should buy a new one you dont necissarily need a HO one cuz your not runnin that much power but it wouldnt hurt to upgrade a lil bit
was the car on during all this? Assuming it is, a readout of 12.1V from an alternator is a very bad sign. replace that S.O.B. "bottoming out" doesn't make any sense for what you're talking about, but anyway, you have a severe low voltage problem...
totallyLost
Unregistered guest
Posted on
the readout came directly from the amp. and yes, the car was on during all of this. so you think the best bet would be to get a new alternator?
Measure the voltage with the car running, and then off. If you get 12.5v reading constantly, then your alternator is shot. Do not run any electrical devices in the car till you get the car looked at. If your alternator is dead, then your battery will be supplying all the power. It will die very shortly. So don't start the car unless you're going to see a car shop. If not, you will have to replace both.