Replaced Alternator and Battery and Still will not stay running

The battery may be old and have a short, or the charging system is still not working. Could be the main wire to the alternator, it should have a fuse-able link that may be burnt out, or the alternator still does not work. Also check out the fuses for the charging system.

Thanks, the battery is brand new we replaced it at the same time as the Alternator. Is the fuse you are talking about the IG1 - MAIN 60A ?

Its part of the big wire that bolts onto the alternator. If you have a digital multi meter you can test the wire for continuity. Also use it to check at the battery when the car is running to see what kind of voltage the alternator is putting out. It should check around 14 to 14.7 DCV.

Oh yea, just check the fuses.

i'm having same problem was it that fuse

If anyone else encounters this it happened with my son's car. Replaced the alternator, ignition switch (as some suggested) checked continuity, grounds, etc.. Turned out to be a broken wire in the harness that plugs into the alternator. Black and yellow one. Drove me crazy but it's fixed beautifully now!

I have a 2003 Acura TL 3.2 and it runs but Dies at weird times. And will not start for a few hours or until the next day then it runs great for a while and will shut off again and will not start . no codes come back when I check on the computer what should I do