Voltage Problems

[kentb]

so i got:

optima yellowtop under the hood

kinetik hc2400 on the back

iraggi 240/165 amp alternator

it was running fine for about a week since i installed it,

my voltages were:

14.2@idle, 13.4v w/ engine off

this morning it was running fine too

so when i was leaving this afternoon, i noticed the battery gauge was pretty low

i checked the voltage and it was only 12.7 while the car is idling and system is off

so i turned my car off and checked the voltage, it was 12.8

so i disconnected my powerwire that runs to the back battery and the amps

after about half hour driving

i checked the voltage, while idle it was 12.3

when it was off it was 12.5

what do you guys think? did my alternator died?

i checked all the wire connections and it seems that its good

[Dale]

your alternator is not charging properly. make sure your belt is nice and tight. if your belt is already tight....you may want to check that alt

[kentb]

thanks for the help me ill check it the belt if its tight..

how will i know if the belt is tight enough?

(sorry for the dumb questions, im new to this)

[kentb]

sometimes when i start my engine there is a high pitch noise, do you think its because of the belt?

does that mean its not aligned or its loose?

[kentb]

help guys.

[Jcoleman134]

Just pop open your hood and wiggle the belt that is connected to the pully on your alt a little and see if it's loose.

[kentb]

i just checked it, the belt is nice and tight

my voltage:

12.46 engine off

12.21 engine on

don't tell me my alternator is dying... i just got it a week ago.. omg..

what do you think?

[Jcoleman134]

Idk bro but to me it sounds like its dieing.

[kentb]

its gonna be a bitch to contact iraggi tooo.. fuck.

[CstrokerV]

i had a similar problem but different brand alt...

my problem was i had low oil in my car and made it hard for the engine to turn anything car ran fine just had the squeel got an oil change and it stopped

so check your oil