What can cause both headlights to be dim when the alternator is working properly?

how do you know they are dim? By “dim” do you mean they are in the low beam mode or that they are actually not as bright as they should be? How do you know the alternator is working properly? When does this occur, always? What kind of car, what year, what mileage?

I used weak batter in my pancakes this morning. Would that explain why my eyes have been half shut all day?

On the road both are half bright in high beam. The alternator shows about two volts higher than the battery, which is new. The alternator does not let the battery run down. This problem is all the time. Ford Ranger, 1988, 125000 miles.

What are the voltages you are getting? Your statement is a little hard to follow. With the truck running, you should be getting 13.6V to 14.6V at the battery.

Hi guys! The cover of my headlights feel like sandy and blurred and I think this is the reason why the lights are not strong… Is there any way to sand them clear or do I have to change them?

Headlights

Maintenance/Repairs

VDCdriver February 13, 2008, 10:36pm 15

Please start a new thread for your question, rather than “hijacking” an existing thread.

Topic		Replies	Views
Weak Headlights (a/k/a dim bulbs?) Maintenance/Repairs volvo , headlights	4	910	April 9, 2008
Lights dim/pulse when accelerating/decelerating Maintenance/Repairs ford , electrical-wiring , focus	9	65908	October 23, 2013
Headlamps, fiber optics brighten and dim alternately Maintenance/Repairs headlights	4	676	July 17, 2008
I think the headlights are getting brighter and dimmer at semirandom intervals Maintenance/Repairs sebring , chrysler	11	7536	November 24, 2018
2003 Saturn Vue Dimming Headlights Maintenance/Repairs	14	4276	September 15, 2015

Headlights

Related topics