Open hood........two vertical metal fastener strips pull upward to release entire lamp assembly so you can change bulb. Change, and replace lamp assembly by inserting the two metal fasteners back.
Yes , according to the 1998 Mercury Mountaineer Owner Guide : ( the headlight bulb is # 9007 )
where is the speed sensor on 2002 mercury mountaineer
how to change spark plugs on a 97 mercury mountaineer
The Mercury Mountaineer has hydraulic brakes, not air brakes.
replace it.
To replace the battery cables on a 1999 Mercury Mountaineer, loosen the connectors at the terminals. After this, remove the other end of the cables and install new ones.
take it off
had to replace the battery in my 2002 Mercury Mountaineer but now the theft light is blinking, it is cranking up. How can I stop it?
If you have to hold the headlight switch out to keep the lights on, then the switch itself is bad. The switch should be a fairly easy part to replace.
Use a hammer
instrument panel or controls?
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.