0
Why do the dash lights and headlights flicker on a 2000 Mercury Cougar?
Wiki User
∙ 16y ago
There are several things it could be, but the most obvious and common is a bad battery. Most people incorrectly diagnose this as the alternator, however, it is in fact a bad battery. The battery is not holding a charge and is constantly placing a full drain on the alternator produing your flickering/pulsing. Check the voltage on the battery with the engine off immediately after running the engine for at least 15min. Wait a few hours (overnight even better) and check the voltage again. Anything more than a tenth of a volt drop or even really hundredths or so and you have a failing battery. For ex. right after running if the battery reads 12.5V and then after say 8-12+ hours if the battery reads 11.9V you definitely have a failing battery. If it does not seem to be a bad battery, repost and we'll go from there on less likely causes.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
Will an 99 Mercury cougar headlights fit 01 Mercury cougar?
No, you need to use the grill from a 99-00 cougar if you want to use their headlights. I think there are some issues with the lights not clearing the bumper cover on too. Read through some of the headlight threads on newcougar.org, that should be able to better answer your questions.
Will an 02mercury cougar headlights fit 99 mercury cougar?
Yes, but you will have to do some trimming inside the engine bay as the '02 lights go farther back into the vehicle than the originals did. More info at http://newcougar.org/
Why do headlights and dash board lights flicker when the car is running?
You may have a pull on your batt, or a surge.
Why do your headlights and dash lights flicker on your 2004 trailblazer?
Sounds like you need a new battery.
1998 Chevrolet s-10 headlights and dash lights flicker?
I had this problem and it was a bad alternator.
Why do S-10 headlights blink?
If the lights flicker when the vehicle is running, the alternator is on it's way out.
What the name of the 4 center headlights on a 1993 Mercury Sable.?
Those aren't headlights, they're considered running lights or parking lights. I believe that mercury calls this a Light Bar.
2005 silverado dash lights flicker?
why do my lights flicker and interior lights flicker
How do you fix the in dash lights on a 1999 Mercury Cougar?
by licking stuff
Why do your headlights flicker on 2005 silverado?
Flickering headlights on a 2005 Silverado may be caused by faulty relays or electrical wiring. The fuses and lights may also be going out.
What fuse feeds the brake lights in a 2000 mercury cougar?
try fuse 24
How do you turn on the dashboard lights on a 1994 mercury marquis?
Turn on headlights/parking lights and adjust dimmer control
