Best Answer

the battery light will appear on the dash or the car will start shaking and lose its energy whilst on Also you can remove it and take it to almost any auto parts store and they will test it for free in most cases. That is the best way as they can mimick a heavy load to see if it fails. Run1

User Avatar

Wiki User

โˆ™ 2006-05-06 14:16:59
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How can you tell if your alternator is bad even if you replaced the battery on a 2000 Mercury cougar?
Write your answer...
Related questions

Where is the fusible link for the alternator charging system on a 1990 mercury cougar?

I can tell you that on a 2000 mercury cougar it is a fuse on the positive cable between the battery and the alternator

On a 1996 Mercury Cougar which fuse is linked to the alternator?

There isn't any fuse then is linked to the alternator on a 1996 Mercury cougar. The alternator has an internal regulator, but does not have a fuse.

What else could be wrong other than the alternator or battery on a 2000 mercury cougar?

wires, connecters, terminals

You replaced the alternator on my 2000 mercury cougar and the battery light still came on so you replaced the battery and the light is still on now what do you do?

go to a auto parts store like advance auto and have them check your computer to see why it is on. they do this for free. this might give you a idea on why its on. if you havent already.

How do you replace the alternator on a 1989 Mercury Cougar?

You can replace the alternator on your 1989 Mercury Cougar by removing the alternator belt. Disconnect the wiring harness from the back of the alternator. Remove the alternator retaining bolts. Reverse the process to install the new alternator.

Why wont your battery light go off when you changed your alternator and battery in your 99 mercury cougar?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. You may also have a battery drain (something that is staying on and killing the battery)

What would cause the battery to not charge even when the alternator tests good on a 93 Mercury Cougar?

the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.

Why is your radio not working after installing a new battery and alternator on your 2000 mercury cougar?

Every time you disconnect a battery cable you have to reprogram the radio stations ( if that's what you are asking )

Where is the voltage regulator on 1993 mercury cougar?

embedded with alternator

89 Mercury Cougar LS:The battery light on your dashboard display keeps blinking Will you need to replace the battery or the alternator?

This happened to me on a road trip in my 84 Cougar. It was a long time ago, but first make sure your belts are tight! But I believe you may need to replace the alternator. If the battery is old, its cheap insurance to do both.

What would cause the battery gauge in a 94 mercury cougar to go down when idleing but when you push the gas it shoots back up?

Its a sign that either your battery or alternator is starting to fail.

Will an alternator freeze up on 1999 Mercury Cougar?

If the bearings in the alternator get bad enough it can lock up.

How do you remove alternator on 2000 cougar?

It should be the same as for a 2002 Mercury Cougar which is answered in WikiAnswer under the Question; " How to remove alternator from a 2002 Mercury Cougar 2.5L V6." The 2000 Cougar may be different by having an upper alternator BOLT. If it does, and you can't lift the bolt out (after fully loosening the bolt), lower the alternator and you can, then, lift the bolt out. When you begin to install the alternator (attach the power wire, and the wire connector) place the BOLT in the upper hole in the alternator, and THEN, raise the alternator to install.

The battery dashboard light is flickering on and off on your 2000 mercury cougar what does this mean?

usually that the battery isn't taking a charge. have the alternator checked, many shops will test the charging system for free

What would cause the battery idiot light to come on in a 2000 Cougar after you just had the alternator replaced?

i had the same problem! replaced my alternator 3 times! battery light kept coming on, finally took it to an alternator specialist, come to find out my wireing was connected wrong, and the connector was bad, car wasn't reading the alternator correctly causing the alternator to shut down. Got it fixed for roughly 350 dollars but no problems since, suggest brand new alternator not a rebuilt one!

Where do you place the negative end from battery terminal to a 1999 Mercury Cougar at?

It's grounded on the front of the Mercury Cougar frame next to the headlight assembly.

What will make the charging system come on on a 2000 Mercury Cougar?

The charging system is the alternator which is on and functioning anytime the engine is running. If not, then you have a problem with the alternator.

What is the voltage regulator located on a 1974 Mercury Cougar XR7 5.8 351C?

it's inside the alternator, and is probabaly causeing overcharging of the battery (you might see white foam(battery acid)on the ground under the car) you can't buy and individual voltage regulator though, you have to buy a new alternator

How much do alternators cost mercury cougars?

I just replaced the alternator in my 2000 Mercury Cougar and with the labour, belt, idler, alternator and tensioner it was roughly $700 Canadian!!If it wasn't such a good car i would have though twice about fixing it but I've never felt safer in any other vehicle besides the Coug!

Where is the alternator located on a 1986 Mercury Cougar?

front of engine at top on right side facing engine

How can i fix a 1999 Mercury Cougar door lock?

The door lock, on your 1999 Mercury cougar, can be replaced by removing the inside door panel. The locking mechanism is easily visible and can be changed.

What causes the battery to go dead in a 1993 Mercury Cougar when it is parked the alternator seems to be working fine could it be a relay?

An alternator can charge normally but can still drain a battery if the diode(s) are defective. Try this: remove the(red) positive cable from the back of the alternator and then touch it to the post that you removed it from. Remember, this is hot so don't touch it to anything else. If it sparks this indicates the alternator is pulling current, and is bad.

Where is the alternator located on a 2001 Mercury Cougar?

Faceing the engine.move to the left side of your car. Looking inside and down.Find your belt.Follow the belt and your alternator should be below it.

Where is the alternator located on a 1999 mercury cougar?

if it is a 2.5 v6 than take the passenger front tire off and the alternator is right behind the plastic shroud

Where is the mega fuse in a mercury cougar?

The Mega Fuse is located from the alternator to the back of the engine, under the air filter.