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Why would lights on a 1991 Mercury Cougar blink off and on while driving?


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2015-07-17 17:39:00
2015-07-17 17:39:00

could be a poor ground if both are doing it could be dimmer switch if only one it could be the bulb itself

I had the same problem in my 1992 Cougar LS. I simply replaced the headlamp switch. It cost me $12 and took me about an hour to do it. The switch is to the left of the steering wheel. You will need to take the dash apart, and replace the switch. It was the first repair I ever did to any car, and it was so simple and cheap, I'm going to keep fixing things myself. ! -Cricket

ANYTIME YOUR LIGHTS BLINK ON AND OFF THERE IS A 90% CHANCE IT IS THE LIGHT SWITCH ASSEMBLY

I am currently having the same prblem...the lights work perfectly for a little while, and then they start blinking constantly. It seems like when the lamps heat up, they seem to shut on and off...I'm doing a complete troubleshooting expedition tommorrow...

hey guys... the headlight problem is a FACTORY RECALL for the 91-94 cougars.. take it to the FORD Garage and have them replace it for FREE..

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I had the same problem in my 1999 Mercury Cougar, I replaced the flasher located in the blinker assembly. It was very simple to do. Flasher cost about $10

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You may have a transmission problem. Have the computer scanned for Diagnostic Trouble Codes.

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You have to start by checking the bulbs or the flasher I think it may be the flasher.>>>>>>>>>>>>>

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I figured it out myself...it was the inhibitor relay got wet.

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On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.


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