When my battery was dying the left front headlight would only show bright and the right one dim and sometimes bright. Now that the new battery is in only the right side dim is operational.

Check the ground connection for that headlamp .

there maybe only one ground wire for both, most are very close to head light in the bucket

Remove headlight and check electrical connection socket for corrosion on connecting pins.

You may have a loose or corroded headlight ground to the body, the ground wires are in most GM attached to the body near the headlight under the hood. Check all the grounds you can see on the inside of the fender, tighten and clean the with a wire brush, also check the headlight connector for problems like corrosion or not fully seated to the headlight bulb.

Follow the ground wire ( black to the raditor suport and reconnect it or add aground wire from it to the battery ground and it'll work good. Bet it goes out if you unplug the other headlightas it's grounding thought the other light.

The starter will click like that when there isn't enough juice in the battery to turn the car over. Try jump-starting it, take the cables off the car right after it starts. Turn on the headlights right away. If the lights are dim or go dim after 5 minutes, then you need a new alternator. If the lights stay bright, drive it around for about 10 mins. Turn the car off and try to start it again. If it clicks again, you need a new battery. If it starts up, you're good to go - you must have just left something on and drained the battery.

go here. we can help you. Also, did you check the headlamp relay in the box under the hood? One relay is in box in front of battery, other is in narrow box along passenger side fender under the hood. swap left & rt headlamp relays to see if it changes.

http://groups.yahoo.com/group/villagerquest/

Try swapping the headlight bulbs or buying a known good bulb and testing that way. Sounds like a shorted bulb filament issue.

sounds like a ground wire on the front of the engin compartment next to the bat is either not make good conduction . try all gounds . even under the dash ned to be cleaned and tightend

You have a bad ground, look out by the battery for a bunch of black wires screwed to the body of the car, check that they have a clean and tight connection, scrap off any paint under the wires.