Hows it going? When I'm out driving and come to a stop, my idle drops from 1k to 500-400 rpm but does not stall. At night my lights dim when this occurs which is obviously the alternator slowing down. My car has been doing this for a while now and never thought nothing of it but now it just doesn't seem like normal. Anyone have an idea what is causing this? Any advice is greatly appreciated. Thanks in advance guys.

Phoenix

 

probly a vacuum leak from a cracked hose.