When you set the alarm on your 2000 firebird the lights flip up and down then it makes a loud grinding noise for a few seconds then stops why does it do that?

Answer 1

First check to see if the head lights do that when you just use them and not when your setting the alarm .. if its not the head lights i have no idea .. even if it doesnt do it when you use the head lights alone still check the track they are on i know my head lights wouldn't work because the back plastic housing that connects to the head lamp motor check to see if everything is in order .. if nothing is out of place then all i could imagine it being is the signal from the alarm that is making the headlights move is telling them to close for to long and the gears are grinding .. idk if they are safety gears kinda like and they can handle the grinding you can look to see ho they hold up .. you mightg just be better off leaving it how it is to be honest ... and if you like firebirds don't go get a camaro its such a better car you might like the firebird styles but as far as mechanics the firebird is a piece of sh*t

Actually the problem is with the headlight motor (the motor that brings the lights up/down). This happened to me, the noise your hearing is the plastic motor gear inside the motor. The gear has worn out (gear tooth are broken). Your motor is more than likely working fine and just needs a new gear which can be purchased on the internet. Do a search for firebird headlight gear. They usually sell a gear that is brass and have instructions on installing it.