[foxtail]

Last night I think that the intensity of my headlights (high beams) was fluctuating. Periodically they seemed dimmer, and then they'd go back to normal intensity. Has anyone else noticed this? I don't think that they've always done it.

Any ideas on what could be causing it? I didn't notice it with the low beams, just the high beams.

Thanks,
Kristi

 

[jayharley]

[quote:17616b4495="foxtail"]Last night I think that the intensity of my headlights (high beams) was fluctuating. Periodically they seemed dimmer, and then they'd go back to normal intensity. Has anyone else noticed this? I don't think that they've always done it.

Any ideas on what could be causing it? I didn't notice it with the low beams, just the high beams.

Thanks,
Kristi[/quote:17616b4495]

I notice that my headlights get a bit dim at idle, but brighten up as soon as I rev it up.

 

[Kayakin' Dan]

At idle or low RPM, the Alternator isn't spinning as fast so it'll push a little less power. Couple that with having the air conditioning on and it'll be noticable, but not a problem.

 

[Sheniferous]

the lights will dim for a second when the A/C compressor kicks in.

 

[foxtail]

Thanks, Shen, that might be it. It definitely wasn't at low idle, as it happened on the interstate and other times when I was moving right along. And I was using the AC. The only thing that bothers me is that I hadn't noticed it before.

K

 

[thirstE]

the same problem...steady speed driving, no air on. I was gonna say dim but your description is better, fluctuate. It doesn't matter if I have all, some or none of the accesories. And it's intermittent so until something goes, it's tough for the dealer to check.

It's not a belt, I checked. My guess would a voltage regulator or loose ground.

ThirstE