how big is the amp?
have you looked at the wire to the lights?
look over your wiring too

 

how big is the altenator

 

Even without the stereo?

That's a tough one...

You've had the alt checked, so assuming it's good. Is that a computer regulated Intrepid? Probably is, that could be the problem...

First thing I'd do if it rolled into my shop, inspect all ables for corrosion and make sure they're tight. Then grab a good jumper cable...

Connect one end of it (just one cable, not both + and - ) to the output pole on the alternator (this may be difficult, depending on location), and the other to the + on the battery. Test again. If problem's still there, do the same for the ground side, clamp that sucker right to the alternator case, and to the - on the battery.

If neither of those jumps improves anything, then you've got either a), a bad, or discharged, battery, or 2), the regulator isn't up to snuff.

That's just a start though...

Edit: So, if the jumper cable DOES improve things, then it's telling you that there's a voltage drop somewhere. You then wanna grab a multimeter and start tracing where you voltage drop is.

[ November 04, 2005, 10:50 PM: Message edited by: GrizZz ]

 

Well said Grizz [img]graemlins/thumb.gif[/img] , I'd go with door # 2..,and suggest a stiffening cap, and possibly dual batteries.
check for corroded grounds at the lights?

[ November 05, 2005, 02:21 PM: Message edited by: Eli47 ]

 

Grizz knows what he's talking about, a couple bumb rectifing diodes in the regulator could definatly cause these issues... The alt and battery both should be load tested... make sure your dealer does this, cause half the time they will just d!ck you around...