Question about 1991 Mercury Cougar

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When driving at night I turn on the headlights after 5 minutes it start flickering off and on

Can't drive at night turn on the headlights and it starts flickering

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  • 251 Answers

You most likely have a bad headlight relay or a bad headlight switch.

Posted on Jan 17, 2015

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Posted on Jan 02, 2017

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SOURCE: 1993 grand marquis while driving the head lights goes off and on

check your connections at the headlights especially if they are sealed beams with the three way connecter sometimes they will get corrosion, or dirt and not get the propper contact vibrations from driving will cause them to lose contact.

next check your headlight relay it could be going bad and not pulling the internal switchinside of it to close.

hope this helps.

Posted on Mar 21, 2009

BCAS1298
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SOURCE: dashboard lights all come on, mercury villager

Is there a clicking sound when you try to start, if so sorry but you have a bad starter.

Posted on Dec 15, 2009

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SOURCE: When I start my 2000 mountaineer it will beep 5

Its your air bag light thats burnt out. when you have a malfunction in the air bag system usually the air bag light flashes. when its burnt out than there is a chime thats ring every 30 minutes to let you know.------------
you will have to remove the instrument cluster and replace the bulb. if you shine a flashlight on the cluster you can see the different indicators to see where the airbag lamp is.------
When you go to do the lights, the larger #194 bulbs are for cluster illumination. All of the indicator bulbs are smaller - I think they are #161 - and are readily available at most auto parts stores. Once you pull the cluster, you can replace the bulb.------ Replacing the bulb will help.--------- Thanks.Helpmech.

Posted on Apr 07, 2011

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