Where is the alternator on a 1999 Mercury Mystique V6 and how do you replace it?

Answer 1

The alternator is located on the passenger side of the car on the firewall side of the engine, down low. To access it you must remove the passenger side wheel and inner fender and steering tie rod. Some suggest you remove the passenger side drive axle (not neccessary). It is very possible that all that has to be done is to replace the brushes for about $14.00. It is alot of work that requires the use of several extentions on a socket wrench to get at the fasteners. Do a Google search and you can find detailed instructions. It took me about 4 hours.

EDIT

V-6

Here's how:

1. Put the front of the car on jackstands and dis-connect the negative battery cable.

2. Remove passenger side wheel and lower splash guards. Using low profile 3/8" socket wrench or breaker bar, remove the serpentine belt from the alternator pulley.

3. Dis-connect the passenger side tie rod from the knuckle.

4. remove the driver side wheel.

5. Get 3 or 4 feet of extensions for your 3/8 socket wrench and feed them through the driver side wheel well to the upper bolt of the alternator. Yo may need to secure the socket & extensions on the bolt from up top then get back down to the driver wheel well, but it's worth the few seconds. Remove the upper bolt.

6. From below the car, loosen the lower bolt, but do not remove.

7. There is a small bracket on the alternator between mounting bolts. Remove the 10mm bolt that secures the bracket to the block.

8. From above, pry the upper tab from the mounting bracket.

9. Below the car, hold the alternator while removing the lower bolt.

10. Dis-connect the electrical to the Alternator.

11. Maneuver the alternator out through the passenger side wheel well. Takes a little thinking, but it'll come out.

12. Transfer the small bracket to the new alternator.

13. Feed the alternator in through the passenger side and make electrical connections.

14. Secure the lower alternator tab and hand tighten the lower bolt.

15. Pivot the alternator up. The upper tab may not easily fit into place. Tighten the 10mm bolt in the center bracket to the block. This will press the upper tab into place.

16. Install the upper bolt and hand tighten. Fully tighten the lower bolt now.

17. Use extensions from the driver wheel well to tighten the upper bolt.

Remainder of this project is simple re-assembly. An experienced shade tree mechanic can do this alternator R&R in under an hour after his tools are set out.