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Re: Can not adjust the headlights
Usually the adjuster screws will have a plastic knob on so to aid turning by hand if located at back of headlight if not then look down on to the top of lights and ther may be screws located either side of light
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The Sunfire 03 to 05 has one adjustment screw at the top. The back of the headlight has a tab that has to fit into a hole in the radiator support make sure it is in there or the headlight will be loose. I found after breaking the two adjustment screw plastic brackets. Remove the parking light brace from the radiator support one screw and as you carefully slide the headlamp in while pulling out the parking light. Hook the back of the bracket on the radiator support. If you break the plastic adjustment bracket (it twists in like a headlight bulb, but you can't buy it. Thank you GM) remove the broken piece of plastic and the rubber washer and spread it with plastic epoxy sets in 5 min and full hard in 24 hours, but hard enough in one hour and you can now beat it to death and it won't break why didn't GM make it permanent?
Are your headlights beams too high? too low? Then bear with me and maybe I can help
Horizontal headlight adjustment is easy. See the screw on the inside top of each light? turn the screw left and your headlight beam goes outward; turn the screw right and the beam goes inward, (toward the center.)
Okay now Vertical adjustment is a little more involved. Start by removing the corner lens; take out the screw on top of the headlight and pull the corner lens forward. This will allow you to access two 10mm bolts holding the headlights in on the sides.
Remove those, along with one 10mm nut on the backside of the headlight assembly (near where your bulbs plug in). Remove your headlight bulbs carefully - I usually put a paper towel around them to protect them from dirt and oil. Now the only thing holding your light housings on are the horizontal adjustment
screws. Just slide the screws out from the lens, and then remove the headlight from the car.
If you look at your headlights now, there is another screw that looks just like the horizontal adjustment screw.
In order to adjust this, you need to remove the 10mm bolt labeled "A".
Now slide the plastic headlight base off of that bolt. The whole plastic base will now be free to swivel on the adjustment screw. What you need to do now is to turn the plastic base around the screw; if you turn it clockwise or right, it will lower your headlight beam when reinstalled. If you turn it left, it will raise the beams.
I ended up only turning each side lower by one revolution. You shouldn't need more than one or two turns. It also becomes hard to slide the housing back over the "A" bolt after two turns. If
in doubt about whether the beams will be raised or lowered, on the final pic you can see the clean area of the bolt on the left side. if you lengthen this side, it causes the beam to go down.
Its really easier to understand as you are doing it, if this does not seem clear. Just use some common sense and you'll see what I mean.
Installation is the reverse of removal.
there should be some long screws in the back of the head light am unsure of what screw is left to right and what screw is up and down though.my advice pull up facing a wall turn ur headlights on and adjust till your happy(once you find out what screw does what of course)
1. Remove the two upper screws from the headlight housing, using a Phillips screwdriver.
. Locate the two lower retaining nuts inside the engine compartment at the bottom of the headlight housing. Remove the nuts using a ratchet, extension and socket.
Separate the turn signal and marker light assembly from the front grill. Rotate the bulb holders counterclockwise and pull them out of the assembly. Set the assembly aside.
Unplug the headlight bulb connector from the bulb. Rotate the retaining ring counterclockwise one-eighth turn and remove it from the housing. Pull the headlight bulb straight back and out of the housing. Do not rotate the bulb during disassembly.
Lift up on the headlight housing retaining clips to unsnap them from the headlight housing vertical adjuster studs.
Locate the horizontal adjuster at the outer bottom corner of the headlight assembly inside the engine compartment. Loosen the horizontal adjuster until it is free of the adjuster nut.
Engage the horizontal adjuster screw with the adjuster nut and screw it partially in.
Snap the headlight housing clips on the vertical headlight adjuster studs.
Insert the headlight bulb into the headlight housing, flat side up. Slightly rotate the headlight bulb to engage the grooves in the light with the alignment tabs in the back of the housing. Install the retaining ring on the bulb. Plug in the headlight bulb connector.
Install the bulb holders in the turn signal and marker light assembly. Install the assembly in the grill. Install the two upper screws, using a Phillips screwdriver. Install the two lower retaining nuts, using a ratchet, extension and socket.
Pull the vehicle to within a few inches of a blank wall, on a flat surface. Apply two strips of tape to the wall vertically to mark the centers of the headlights. Apply a strip of tape to the wall horizontally to mark the center of the headlight height. Back the vehicle up 25 feet in a straight line.
Turn the headlight low beams to the "On" position.
Adjust the vertical headlight adjusters until the high-intensity zone of the light pattern is two inches below the horizontal mark on the wall.
Adjust the horizontal headlight adjusters until the high-intensity zone of the light pattern is two inches to the right of the vertical headlight marks on the wall.
Here's the procedure on how to adjust the headlight of your tacoma.
•1 Find an appropriate area to align your lights. The ground should be almost perfectly, if not perfectly level. There should be a flat vertical wall against which you can shine your lights and clearly see the boundaries of the beams. There must also be enough room for you to park the Tacoma 25 feet back from this wall.
•2 Prepare the vehicle for normal weight and height conditions. Take everything out of the Tacoma except for the items that stay in the vehicle at all times. Fill the gas tank and make sure the engine oil level is full. Fill all of the tires to the PSI you usually use. Finally, make sure there is someone sitting in the driver's seat during the testing and adjusting process.
•3 When it is dark enough to see the headlight beams, park the Tacoma on level ground, 25 feet back from the wall, facing the wall head-on. Leave the engine running and prop open the hood.
•4 Look at the backs of both headlight assemblies. Near the top center corner of each headlight, you'll find a small round cap. Remove these caps to expose 8mm screws. These screws control the horizontal alignment of the headlights.
•5 Look at the backs of the headlights again, checking the bottom outside corners of the headlights. You'll see identical 8mm screws sticking out. These screws control the vertical alignment of the headlights.
•6 Turn on the headlights and shine the beams against the wall.
•7 Use a measuring tape to measure the distance between the ground and the center horizontal line in the plastic lenses of the headlights.
•8 Go to the wall and measure the distance between the ground and the center horizontal line's reflection in the beams of light. If the line on either side is higher on the wall than it is on the Tacoma, the light on that side must be adjusted to point down. If the line is lower on the wall on either side, the light on that side must be adjusted to point up.
•9 Use a 8mm socket wrench to adjust the vertical alignment screws on the headlights, measuring the horizontal lines on the wall as necessary, until the center lines of both beams are exactly as high as they are on the Tacoma.
•10 Use a measuring tape to measure the distance between the two vertical lines in the center of each headlight lens.
•11 Go to the wall and measure the distance between the two vertical center lines' reflections in the beams of light. If they are father apart than they are on the Tacoma, the headlights need to be adjusted toward the center of the vehicle. If they are too close together, the headlights need to be adjusted toward the outside corners of the vehicle.
•12 Use the 8mm socket wrench to adjust the horizontal alignment screws on both headlights, measuring the vertical lines on the wall as needed, until the distance between the lines on the wall is equal to the distance between the lines on the lenses.
•13 Replace the caps on the top headlight adjustment screws and close the hood.
There are height adjustment knobs on the back of the lamp housings you can use to adjust the height and aim of the lamps.
Due to the age of your vehicle, it is likely that they will break when you try to move them. This is very a common occurrence on S/V40 headlights; the lamps will need to be replaced if the adjusters break off, so be gentle.
Look around the edge of the headlight. You may have to pull a cover off from around the headlight if you cannot see them. Normally there are 2 screws that can be adjusted with a cross tip screwdriver. One screw on top of the light, and on on the side. Loosen the top screw to adjust down, tighten the screw to adjust up. If the side screw on the light is towards the inside, then loosen the screw to adjust towards the outside of the road and tighten it to adjust the light towards the inside of the road. If the screw is towards the outside of the light, then it is reversed. tighten to bring the light towards the edge of the road and loosen to bring the light towards the inside of the road. Hope this helps!
open the hood, take a close look at your headlights, if it is a headlight assembly, there are two screws with big plastic heads on the back of the assembly, these are the adjusting screws. one for horizontal adjustment and the other one is for vertical adjustment.
if the headlight is a round or square ordinary bulb, the adjusting screws are located near the bulb itself, these are philips screws. one on the top and one on the side.
a suggestion; when adjusting headlights, face the car to a wall about 5 ft away and adjust the headlight.