I have a 1990 pontiac firebird formula 350, and we own a mechanic shop and are restoring it. The problem is that the left head light wont go up or down, but we have tested the motor, by hooking up a battery to the headlight motor so we know that it isnt tghe motor, and there is no current running to the motor, so we think that it could be a bad fuse... so which fuse would corespond to the left headlight???

They are 2.2,2.4,3.4 3.8 and 5.7.

To get at some of the bolts to loosen you need a special wrench that looks like a large square c. this consist of the handle end and the box end that goes on the bolt. First take a flashlight and look at the bottom of the distributor, the thing with the 8 spark plug wires and cap on it. You shouls see a small bolt with either a 1/2 inch head or 13 or 14 millimeter head. rare is it smaller then these 3 suggestions.carefully loosen the bolt a little so you can move the dist by turning it. Do this without the engine running. If you have a timing light you need to clip on your #1 spark plug wire. I not the old fashion way is to start the car and rev up the engine to about 1500 rpm or 1800 and the rotate the dist left and right until you gets the engine where it runs its best and then back it off a hair,have someone with you and have them remove their foot off the gas and then shut the car off. re tighten the bolt carefully and then restart and see hoe she runs. This method works very well, in most cases you should be within 5 degrees of correct timing. On some models with extra vacuum lines it may be off a little more...Until you can have someone else check it this can work in most cases..

Duplicate question

check fuel filter

This is an anit theft method, most cars that are stolen are stripped for the parts. This method made the car more or less worthless to car thieves because they could not sell or use any of the valuable parts.

i have an 89 formula firebird replaced fuel pump this morning and pump only is getting 6 volts instead of twelve. can't hear pump either..what do i do next

Check all the grounds for the running lights

Four of these light will be the parking and brake lights. The other 2 are your reverse lights.

The order is REVERSE lights are the sockets CLOSEST to middle. (gas Door)

there is no adjustment there is however a manuel override.

open up the hood - look to the left/right of the headlamp assembly you are working on there is a black knob that if you turn will crank up one way and down the other.

If you want to fix it you need to replace the actuator.

I BELIEVE THAT THE MEMORY IN THE CAR'S COMPUTER IS LOST. IF YOU CAN GET IT TO THE DEALER OR A CERTIFIED GM SHOP THEY WILL HAVE TO "FLASH THE DRIVE" ON THE P.C.M.(POWERTRAIN CONTROL MODULE). I HOPE THIS HELPS. LET ME KNOW PLEASE.THANKS FOR USING FIX-YA. GOOD LUCK