How to adjust headlights in 2001 alero?

SOURCE: not really a major problem for me, just oncoming traffic

Remove the headlight trim & you'll see the adjustment screws.

Greg Bernett

• 2993 Answers
• Posted on May 22, 2009

SOURCE: headlight adjustment

AIMING The head lamps should be aimed using a special alignment tool, however this procedure may be used for temporary adjustment. Local regulations may vary regarding head lamp aiming, consult with your local authorities.

1. Verify the tires are at their proper inflation pressure. Clean the head lamp lenses and make sure there are no heavy loads in the trunk. The gas tank should be filled.
2. Position the vehicle on a level surface facing a flat wall 25 ft. (7.7 m) away.
3. Measure and record the distance from the floor to the center of the head lamp. Place a strip of tape across the wall at this same height.
4. Place strips of tape on the wall, perpendicular to the first measurement, indicating the vehicle centerline and the centerline of both head lamps.
5. Rock the vehicle side-to-side a few times to allow the suspension to stabilize.
6. Turn the lights on, adjust the head lamps to achieve a high intensity pattern.

Harvey N Tawatao

• 3854 Answers
• Posted on Nov 05, 2009

SOURCE: 2001 olds alero, stalling in stop and go traffic

Good chance that the idle Air Control (IAC) valve is dirty with carbon and needs to be cleaned. You can clean it by cleaning the in side of the throttle body with Throttle body cleaner (follow the instructions on the can), you can pick up a can at any parts store like Auto Zone. Disconnect the air intake tube from the Throttle body and spray the cleaner throughout the throttle body, make sue your clean the throttle blade and IAC passage way. Once your done with cleaning the throttle body and IAC passage way, just make sure you spray enough through the IAC passage way to ensure you get the IAC cleaned also. Once everything is cleaned, put everything back together and turn the ignition to the run position for 30 seconds and then turn it off for 10 seconds and then start the car, this will reset the IAC and if there is lots of smoke coming from the tail pipe. That.s normal, it's just residual cleaner and carbon burning off and will take no more then 10 min. This should clear up the problem, but check the wire leads to the IAC on the side of the throttle body for any damages like corrosion and after cleaning the IAC problem is still there. The IAC will need to be replaced, but i don't think so, since you did not mentioned any check engine lights on. Good luck and keep me posted, be glad to know your car is running 100% again soon.