hello all after i got my car started and running after 2 days DEAD battery it runs ok now but im not sure if i have messed up my alternator,due to my audio system being run of my battery,well ill try to describe it,it sumtimes acts as if it wants to die but only for a spilt second as in a drop in rpm's and when i press the brake the dash and headlights dim for a second even when i lock the doors ......is this the alternator or just another case of bad wiring, i have heard that u can brake the wire that goes from computer to dash after years of use and its located near the trunk hinge and i do always have to SLAM my trunk for it to close PLEASE help if anyone can help thank you because im afraid of it dying again

 

Did you get a new battery? Maybe your old battery is bad...or not charged yet.

 

Have your alternator and battery load-tested. Remember that the alternator is not designed to charge the battery, only to maintain a charge. It could also be a bad ground.

 

yea if u could go to autozone and have them test the battery, IIRC they do alt checks too right?

 

1. Check the Alt and Bat at autozone.
2. If they are good, check the ground connection of the Bat.

 

I had the same thing.
If the batt is weak, or dying, it will cut out when blasting the system with all the lights on and AC on. If the battery is weaker, then its even worse.

Clean all the battery contacts, if its still doing it, then get a new battery!

 

I've had this instance before, check your ground cable to the battery, and clean it well.

 

thanks guys i made it to autozone with drop in rpms wile driving and hiting the brake anyways autozone told me i needed to take out the alternator and battery for them to check it because the machine was in the store
ill have to see if i can take it to my local mechanic tomorrow thanks again to all for the insight

 

If you are an AAA member, the basic battery jump service vehicles will be able to diagnose it in-car.

 

Thank you RA40 iam a AAA member and will try this tommoro

im wondering if, even if my battery is fine but it cant support my audio system,then just get a yellow top battery and mebe a capacitor and i should be ok?

 

I had this problem where the battery was getting drained and kept dying. I switched to a red top and everything was good for about a month...but just the other day the car didnt start again, after I jump started it, it's been running ok and I've been sure to check the voltage on the battery from the deck before I turn the car off.