the drivers side headlight goes up but the passenger side light doesnt. i know that the motors are good on both sides, so is the wiring wrong or what? and where can i get a new wiring harness if that is what it is?

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1987 pontaic firebird
2.8 liter v6,5 speed, hurst shifter,rapid fire plugs,borg warner wires,160 degree thermo,K&N,polished plenum,custom exhaust,modded air box,american racing wheels,3"tach,autogauge gauges,run with no spare tire,grant challenger steering wheel,firebird floor mats

pics at:http://www.gatherround.com/u114277a116822passs.invt
then click on guest view under pic #5.

 

check for proper ground on the passanger side

 

Also check the ground on the driver side. I had the same kind of problem--ground was loose on the driver side, now they both work beautiful!
Also is one of your headlights dim? If so another symptom of a bad ground.