what is the year,make and model?
does the bat/alt light stay on?
no,the only light staying on is the engine light
one moment please
have you had the car scanned?
no, haven't been able to get my car in and back within a reasonable time frame and need my car for work
here is what you need to do
sense the engine light is on there are codes stored in the cars computer
these codes will give a clue to your problem
if you dont have a scanner..
some parts stores will scan it and give you the codes for free
without the codes and from the way you explain
you need to load test the charging system
this will determine for sure if the alternator is bad
again,,most parts stores will do a load test for free also
you may in fact need a new alternator
but,do the tests first to make sure
if the alternator is going will the battery light come on, or not necessarily
i would think if it is the alternator,,it will eventually come on
but,it is possible for it to be shorting or over charging and not turn the light on
this is why you really need to test it first
ok, thanks for your help, have a better idea on what needs to be done now
you are very welcome
Please RATE my answer by clicking the RATINGS button so I can get credit for my work,, the [BAD SERVICE] and [POOR SERVICE] rating does not give me credit].i don't receive commission if you give a less than 3 star/smiley rating ..I'm not always going to be giving you good news, so please don't let this stand in the way of you accepting my answer. .it does not cost you more money and we will still be able to communicate, ,.please understand, i can not see, hear or touch the vehicle and only know what you tell me. Bonuses and positive feedback are appreciated.. if you are not satisfied with my answer, please do not leave bad feed back ,i will gladly opt out and let another expert handle the question. .if i have sent any diagrams, ,please print them. .sometimes you may need to right click the image [,then save picture as]to save it to your computer so you can open it with your picture program...PLEASE ASK IF YOU NEED MORE HELP