so ive had my car for a month now and the past few hot days i noticed my votage would be around 13.4 which seems a little low to me but today i seen it jump down to 12.6 so my guess is the alternator is on its way out. what do you guys think?

 

well it is summer so with load on the system it may read lower. what is it at idle?

 

thats idle. while moving its any where from 13.6 to 14.2 wich is normal

 

A/C on, running the blower higher? Alternators don't put out much at idle. Battery volts will drop a bit. Sounds like you're fine to me.

 

sounds good thanks .

 

your fine