Question about 2000 Mercury Cougar

1 Answer

I have a 2000 mercury cougar. i have changed the alternator 3 times in less than a year and i need a new one again, whats the problem?

Posted by on

  • Richard Scordino Sep 11, 2010

    When replacing an alternator, always make sure the wiring going to it is in good condition. Sometimes when moving the wires you will temporarily re-establish contact but it will eventually have a problem down the road. Always make sure the battery is in good condition and fully charged before re-starting the car after replacement and that you check the charge condition every few months. Using the radio etc with the vehicle off can pull amperage capacity of the battery down over time and cause the alternator to continually work overtime to attempt to re-charge. If you have additional sound equipment in the vehicle, you may need to up-grade the alternator to one of a higher amperage (like a police option unit).
    If your problem is electrical that will help. If the bearings in the alternator are failing, you need to make sure your belt is at the proper tension and not set too tight.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 4,793 Answers

Only two reasons alternators go broke,one is **** quality and the second is belt too tight.......

Posted on Sep 11, 2010

  • Brandy
    Brandy Sep 08, 2011

    I am having the same issue....however I have replaced the battery four times,rebuilt the alternator and put two new alternators in the car and it still will not hold a charge. At this point I am putting the car on a charger every night just to drive it aroud 1 to two hours the next day, and during this time I cannot turn on the radio,lights or air conditioner because it drains the battery and that is all I am driving on. The alternator is not charging AT don't waste your money on another one. The alternator will ALWAYS test bad on the car...then test perfectly fine off of it. I have done some research and many people are having this issue. Ford has a recall on the battery cable being misrouted but most people have a car conveniently NOT included in it,although it was manufactered during the SAME time. Mine being one of those not included. I did come across someone who replaced the MEGA175BP Main Power Fuse on the cable from the starter to the battery. She said it was broken and would come out causing random electrical issues. I have not tried this I am still trying to find an exact remedy to the problem....but I am starting to doubt that there even is a fix. I'm just at the point where I do not want to waste anymore money. Only a handful of people have actually kept the car long enough to get this resolved (the girl who replaced the main fuse and others who had loose fuses but not the root of the issue), while others just get rid of it. At this point...all I can say is try the main power fuse and cross your fingers...I'm going to try it as soon as possible.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Ihave a 2000 mercury cougar with a charging problem

my cougar did the same thing when i changed the alternator on my 2000 cougar.. the car has an inline fuse located on the motor under a lil box with 2 bolts. that fuse will stop the car from getting a charge. i payed 3 people to try to fix it and they couldnt... i looked at it and found the inline fuse right away and as soon as i changed the fuse my car was taking charge.. hope this helps

Sep 13, 2012 | 2000 Mercury Cougar

1 Answer

My 2000 Mercury Cougar was not charging, so I changed the alternator and battery. Now, I still have the same problem. When I take the battery cable off to see if the alternator is charging the car dies....

Well that is a good and easy test. The alternator you just replaced is probably bad. Once the vehicle starts its the alternator's job to keep the vehicle running. You need to take that alternator back to the auto parts store and exchange it for a good working one.

I hope this helps you out, if it does please give me a YES that I did help you correct your problem. Thank you.

Apr 10, 2011 | 2000 Mercury Cougar

1 Answer

I have a 2000 mercury cougar. I just bought a new battery for it two weeks ago. The battery light keeps coming off and on. When it does this it causes the lights to get dim from the headlights to the...

Hello u69men33, I am very sorry you're having problems, but, I do have a couple of thoughts.
My first thought is that you have a bad alternator. I say this because, once the engine is running the alternator output should be enough to keep the car running, even if the battery is weak.
My second thought is, and this seems less likely, your new battery doesn't have enough cranking amps for the make and model of your vehicle.
Many people are not aware that vehicles have a minimum cranking amp requirement for the battery that is determined by the equipment in the car. So, they just go and get a new battery that looks like it's about the same size.
A word to the wise, if you're not sure you got the right battery, call any parts store give them the year, make, and model of your car and have them look up what the minimum cranking amps should be, then, look on your battery to make sure it has atleast that many cranking amps. If the battery is new and has the right cranking amps, my money would be on a bad alternator.
I hope this info helps you.

Jan 09, 2011 | 2000 Mercury Cougar

2 Answers

2000 Mercury Cougar stalls or will not start in

put a blow dryer on the distributaor cap and spark plug wires. somehow moisture is getting under your cap. it should start almost immediatly after you start drying it with your blow dryer

Nov 12, 2009 | 2000 Mercury Cougar

1 Answer

Removing alternator bolts on mercury cougar

There are 3 bolts. You'll need a LOT of socket extensions and a car hoist!
and a lot of time and patients.

But an even better idea is to just check the wire connections make sure they are well connected and no gaps on the female connectors if you suspect a bad alt.

Nov 11, 2009 | 2000 Mercury Cougar

1 Answer

When do you need to change the timing belt on a 2000 mercury cougar, and if it breaks does it mess up the valves

on a nine year old car it should be changed before it breaks and yes it will mess up motor if it breaks

Nov 10, 2009 | 2000 Mercury Cougar

2 Answers

2000 cougar breaking down

main alternator cable (from alt. to battery).... i beleive there was a recall on some vehicles

Aug 06, 2009 | 2000 Mercury Cougar

1 Answer

I have a 2000 mercury cougar for about a year. Two weeks after I got it the alternator went out. I had it replaced (with a bad one, then had that one replaced). Months later my battery light would come...

body controll module [BCM]or power controll module[PCM],witch ever one feeds the instrument cluster,HAVE BOTH CHECKED FOR DEFAULT TROUBLE CODES, or check electrical harness all the way through for grounded wires that may be causing a short & not blowing fuses,I WOULD CHECK BOTH THE COMPUTERS [BCM] & [PCM] FIRST,MOST ARE FED BY [PCM] TO INSTRUMENT CLUSTER,which controlls the battery light to alternator.

Sep 22, 2008 | 2000 Mercury Cougar

Not finding what you are looking for?
2000 Mercury Cougar Logo

Related Topics:

254 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

76691 Answers


Level 3 Expert

5537 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides