# Cavalier headlights flicker **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet, cavalier\ **Created:** [November 22, 2009, 7:49am UTC](https://community.cartalk.com/t/cavalier-headlights-flicker/39848 "2009-11-22T07:49:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![RHEgeland](https://avatars.discourse-cdn.com/v4/letter/r/3bc359/32.png) [@RHEgeland](https://community.cartalk.com/u/RHEgeland)\ **Post date:** [November 22, 2009, 7:49am UTC](https://community.cartalk.com/t/cavalier-headlights-flicker/39848/1 "2009-11-22T07:49:05Z")
The headlights on my 1990 Chevy Cavalier would flicker and then go out while driving. I replaced the headlight switch, and everything seemed fine. However, once I drove more than 20 miles at a time, the headlights started flickering. When I turned them off for a minute and then on again, the flickering did not return. The flicker did not seem to be related to rpm, and I didn’t notice any dash lights flickering. I am giving this car to my little sister as her first car soon, and I’d like to straighten up the issue ASAP. Thanks!! ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [November 22, 2009, 11:46am UTC](https://community.cartalk.com/t/cavalier-headlights-flicker/39848/2 "2009-11-22T11:46:25Z")
Is it both headlamps or just one? I may well be a bad ground or a failing alternator. Good Luck. Looking at the voltage with a scope can tell you a lot in this kind of situation. ---
**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\ **Post date:** [November 22, 2009, 12:43pm UTC](https://community.cartalk.com/t/cavalier-headlights-flicker/39848/3 "2009-11-22T12:43:25Z")
The headlight relay may be to blame. See what replacing it does.