You have to give us a little more info than that for us to give you any kind of answer.
No,a transmission on a 2005 mercury mountaineer will not fit on a 2000 mercury mountaineer unless you change the oil message on the mountaineer.
On a 2005 Mercury Mountaineer : ( No , I believe it is the 5R55S , 5 speed automatic transmission )
No , the fuse box is totally different in the 1997 and 2005 Mercury Mountaineer
If your overhead compass on your 1998 Mercury Mountaineer does not work, the fuse could be what is wrong with it. Check the fuse and replace it as needed.
move it
In a safe place on the car!
The first model year of the Mercury Mountaineer sport utility vehicle was 1997 Did you mean 2005 ?
Is your battery getting weak ?
I get 15.3 in my 2005.
check the trans fluid.
On a 2005 Mercury Mountaineer , 4.6 liter V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
According to the 2005 Mercury Mountaineer Owner Guide : With engine oil filter change : ( 6 quarts of engine oil ) for the 4.6 liter V8 engine