Question about 1999 Mercury Cougar

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Back lights whont come on but the front an brake light will

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Hi
I've had the same problem It's the light switch on dashboard, replace it or like I did take it apart and clean connectors , good luck
Jerzy

Posted on Dec 09, 2008

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Change the bulbs.

Posted on Dec 01, 2008

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SOURCE: the brake light on one side whont work and the

Check for recalls. Sounds like bad switches.

Posted on Oct 02, 2010

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Posted on Jan 02, 2017

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I would check the ground connection on the back which could affect the lights not working

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Sure sounds like someone transposed the power leads from the brake peddle and the light switch - or the ground is bad - and a back feed of power is causing this.
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If dash then check the brake fluid. Could be when you move forward it moves the fluid enough to make the light come on. So check and top off the fluid. If really low check your front pads.

if rear lights look at the brake peddle to make sure it is firm and not rudding on teh brake light switch.

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