Look behind the glove box. Its all there. Plan on spending a good couple of hours on this job. Drain the rad system, remove the 2 hoses to the heater core on the firewall side, there is also 1 or 2 nuts to remove. Then off to the inside under the dash. Remove the blower, and the rest of the screws for the box.
BIG JOB Get a manual on your car from the parts store and it wil have pictures .
Changing the heater core on a 1993 Mercury Topaz typically takes about 4 to 6 hours, depending on the mechanic's experience and any complications that may arise. The process involves draining the coolant, removing the dashboard, and accessing the heater core, making it a labor-intensive job. It's advisable to have a repair manual on hand for specific instructions and guidance.
mercury villager heater core 2001
How much will it cost me to replace the heater core in my 1999 Mercury
Heater core leaking.
Common heater problems in Mercury Topaz vehicles include issues with the heater control valve, the heater core, the blower motor, and the thermostat. These problems can result in insufficient heat in the cabin, coolant leaks, or a malfunctioning heating system. Regular maintenance and prompt repairs can help prevent or resolve these issues.
The Mercury Tracer heater core can be found behind the passenger side kick plate. The heater core can be removed by disconnecting the water supply lines and removing the retaining bolts.
Follow the heater hoses from the engine. They will lead right to the heater core.
There would only be a rear heater core if there was a rear heater, which I don't believe was an option.
diagram for a 92 Chevy van g20 Heater core
Most likely a bad heater core
the heater core is up under the dash on the riget side.