Question about 1999 Mercury Cougar

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Battery completely dead within 1-2 hours

What would cause the battery in my 1999 Mercury Cougar to go completely DEAD within 1-2 hours after I installed a new Alternator and Battery? I even took the new Atlernator back and had it checked and it was good.

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  • Anonymous Mar 13, 2014

    car stopped in the middle of the road. Electrical completely dead. Won't start at all. 1 year old alternator and new battery.


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Disconnect the negative side of the battery. Hook a volt meter on the negative cable end, and hook the positive end of volt meter on the negative post of battery See what it reads. If it reads 12 volts, pull fuses one by one, and replace until the volt meter drops down. Whatever fuse you pull, and the voltage drops down to 2 volts, that is where the problem lies.

Posted on Nov 24, 2008

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Short or loose connection

Posted on Nov 24, 2008

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2002 mercury cougar make a clicking noise like the battery is dead but it's not and won't jump start either.

Are you sure the battery is not dead? This is usually a good indicator of a dead battery or not enough charge to turn it over
Failing that Loose leads,Poor connection to starter motor or faulty starter motor.

Oct 15, 2016 | Mercury Cars & Trucks

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1999 cougar been setting for a couple of months tried to jump it and all i get is a continuous clicking sound when i turn the key is this just the battery needing to be charged or something else?

if the battery is the original i would replace it but yes the battery is too dead and if it is old enough the battery could be dead beyond recharging

May 03, 2010 | 1999 Mercury Cougar

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My 1999 cougar alternator stopped charging also no speedometer or techometer or cluster lights even after installing a knew alternator still not charging ,car will run until battery goes dead than...

If you get no red light for the battery charging system the charging system will not work. The indicator light initally excites the field to start charging.

Feb 28, 2010 | 1997 Mercury Cougar XR7

2 Answers

It is dead had battary charger on all night stillnothing 91 cougar xr7 i know its some thing ele

Even at a 2amp charge over 12hours, your battery should be at or near full charge. Battery is likely bad. When charging, was the battery still connected to the car and, what was the actual charging rate?

Sep 29, 2009 | 1999 Mercury Cougar

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1999 Mercury Cougar Anti-theft System

ive reaently had a simular problem with the key being turned over and nothing happened, i had the starter replaced, seems like it was the cylinoid going bad.

Jan 06, 2009 | 1999 Mercury Cougar

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find the cable that is supposed to attach to the latch, and grab it with a pair of pliers or the like and pull.

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Check for bad relays, that get stuck. Some fuel pump relays get stuck also. Make sure nothing is left on such as any lights , etc. Your alternatopr could be bad too.

Oct 22, 2008 | 1999 Mercury Cougar

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