Need your help on this one...

[BrownGuy]

Recently I noticed that my car idles at 500 RPM but at night, with the headlights and interior lights on, the car idles at 900 RPM. I had the battery checked out and the battery is fine.

My car is a '99 with 34,200 miles on it so I'm thinking it isn't the alternator that could be the problem... but then again I did get a system installed about 4 months ago which could contribute to the alternator being the problem.

I'm wondering what the problem could be? I was thinking the alternator could be the problem... or maybe the timing needs to be adjusted?

Feedback on this issue would be much appriciated...

 

[fast5thgen]

its just cuz your electrical system is drawing more juice at night w/ your lights and stuff on. It should be fine.

 

[SeanMc300]

your car is fine. even during the day turn your lights on and s**t...its fine.

 

[kellog]

try getting a cap for your stero.

 

[BrownGuy]

Well.. guess I was concerned over nothing. Thanks for the feedback everyone.

 

[imazn]

you have any car audio stuff of any kind? sub? amps?

 

[RaYrAy]

a 900 RPM idle is hardly anything to worry about...

 

[Zak8022]

yea, i agree...nothing to worry about really. but i would be interested to know if you have any car audio like imazn asked. that could cause a problem if you have some decnt power goin thru there.

 

[shinobi]

yeah, it's probably the power that the lights and stuff are drawing like everyone else said.

 

[infiniciv]

Mine ('99) does that too dood, No worries!!!

 

[BrownGuy]

Originally posted by imazn
you have any car audio stuff of any kind? sub? amps?

JL Audio 500/1
JL Audio 300/4
2-12" JL Audio W6v2's
Monster Cable wiring (8 gauge)
1 farad capacitor

 

[DirtyD]

^^^HAHA, well there you go, do your headlights just coincidentally go dim when your subs hit???

 

[Zak8022]

well, if the cap is doing its job, the lights shouldnt be affected. should is the key word there. tho the idle isnt that irradic, or high, so i still wouldnt worry about it THAT much....unless it starts getting worse.