Idle Problem w/ lights on

[87GT 306]

I only encounter an idle problem with my lights on. I cant figure out why. I kept noticing at night, when I came to a stop the idle would dip(500rpm) jump (1000rpm) then dip again only to stall. Any ideas?

 

[87GT 306]

anyone?

 

[luckythirteen13]

maybe your alt is dying. is it stock? the factory alt. is a joke. i switched over to a 150amp alternator and i make 14v at idle even with everything running. does the car do the same thing when you run your stereo or a/c?

 

[87GT 306]

maybe your alt is dying. is it stock? the factory alt. is a joke. i switched over to a 150amp alternator and i make 14v at idle even with everything running. does the car do the same thing when you run your stereo or a/c?

my radio's always on, alternator is 2 months old. It is pretty odd. And I dont have A/C

 

[emagdnim]

Funny thing is the EXACT same thing started happening to me today. Wierd im gonna look into my alt.

 

[HISSIN50]

I would pull codes, given your hesitation issue too. An engine management issue could be causing a low idle/stalling and/or the hesitation.

Good luck.