This how you tell if you alt if fuked.
Start your car and disconnect the freaking battery(Neg cable). If your car crap out on you then is you ALT...period.

As some may know, once the car is started... it dont use battery NO MORE, thats why we have ALT.

good luck yo

 

Sounds simple enuff..lol

 

Don't disconnect the battery. The voltage regulator needs it, it acts like a big power-supply filter. Without it, you can get voltage spikes that might fry your ECU. Most likely it won't, but - do ya feel LUCKY???

 

Typically it takes so long to see the symptoms of a bad altenator, that by that time you've usually degraded the life of the battery as well. Typicaly soon after replacing the altenator, you'll probablly have to change the battery since it is a memory type battery. Memory batteries never go back to the previously full charge as when you bought it. So the battery has become use to the low charge from the old altenator.

I good symptom of the altenator going out is when the lights and accessories are on and you stop. The idle goes down and the lights go dim. Then as you press the gas the lights brighten up again. This is usually a beginning symptom.

 

I experienced that sympton but, it seems like it only does it when its raining outside.
"I good symptom of the altenator going out is when the lights and accessories are on and you stop. The idle goes down and the lights go dim. Then as you press the gas the lights brighten up again. This is usually a beginning symptom"

maybe my ALT belt is a bit loose?


edit: Also wouldnt the Alternator light turn on, on my dash anyway if the ALT was about to go?

 

If your ALT belt is loose you will hear a loud Sqeaking noice coming from underneath the hood.

 

yo thanks for ur reply it help and so far so good.

 

hmmm.....yeah i dont hear that noise though......

Maybe I will just go out and buy me a new battery. Just to be on the safe side....How long do batteries last for? I had mine for2 1/2 yrs so far