Replacing door speakers in a mercury tracer

There are a couple of videos that might help. One is specific to Mercury. One is a boat engine!

https://www.google.com/search?q=98+mercury+tracer+replace+water+pump

..

under intake on bottom of engine.

Odds are that the wiring for that speaker is loose or damaged. Check it from the stereo output and pull the speaker out to check the connection

All the information I've ever found about the heater core in a Mercury Tracer say's yes. You must remove the whole dash and everything to get to it.
I hear that the Haynes repair manual for that car has a good step by step set of instructions for doing it. good luck.

check ground wire

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

try www.autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

The heater core is inside the heater unit that is located under the dash. You remove the unit and the heater core is inside it. The job is alot of work, about 5.0 hours for a professional that has experience doing them. If you are going to try to do it yourself get a repair manual for your car, it will have pictures and step by step instructions for replacement.

To replace the headlight on a 1993 Tracer you must turn the black plastic retainer ring counter clockwise and then pull back gently. The ring and bulb should then slide out toward the engine.
Carefully grab the sides of the plug and pull the bulb out.
When replacing the bulb make sure not to touch the glass part or it will cause the bulb to burn out sooner. Place the black ring back over the bulb with the open end towards the glass part of the bulb. Fit the wiring onto the back of the bulb and insert the bulb back into the reflector. The black plastic ring has notches that fit over protrusions. Turn the black ring clockwise and your done. Test the headlight. Happy Driving