You first need to open the rear lift gate. Then you need to remove the two hex-head bolts from the side of the tail lamp using a socket wrench and 7 mm socket.
Yes , according to the 1998 Mercury Mountaineer Owner Guide : ( the headlight bulb is # 9007 )
You can view the 2000 Mercury Mountaineer owners manual on-line at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( starting on page 227 there are instructions , with drawings , for changing the headlight bulb )
See sources and related links below to lookup bulbs for any year mercury mountaineer.
2005 Mercury Mountaineer turn signal light bulb replacement: Purchase the correct replacement turn signal light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the turn signal light bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
How you do this is to place the bulb under twice as much pressure than it is currently at. Slowly increase the pressure and then increase the temperature by 21 degrees celcius. Once you have done all of this, dip the bulb in paint that contains mercury
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You can change the light bulb by this method.
I have a 1991, and in order to change these on the front, I have to go under the front bumper and reach in to unclamp the bulb socket, and change the bulb that way. On the back, I have to take out the trunk lining panel on which ever side of the rear is not working, unclamp the socket and change the bulb. I am not sure if a "94" is put together in this manner or not, but its worth a look see.
the bulb has fused or broken or the electronics need fixing
Answer : unscrew the signal lens and remove the signal bulb and replace with 1157 bulb reverse process