left side of the engine after the cat
Behind the glove compartment area inside a plastic case . From the engine compartment you can see where the two heater hoses connect to the heater core at the firewall
you would have to see a mechanic about that problem
If the heater in a 1997 Mercury Mountaineer is not working, it could be due to several issues. Common causes include low coolant levels, a faulty thermostat, or a malfunctioning heater core. Additionally, problems with the heater control valve or a broken blower motor can also prevent warm air from circulating. It's best to check these components to diagnose and resolve the issue.
Behind / below the glove compartment area inside a plastic case . You can see where the heater hoses connect to the heater core at the firewall in the engine compartment
Mercury Mountaineers have a "blend" door in the heater box. It is probably malfunctioning. You can find more info by searching for Ford + "blend door" or "no Heat"
location of heater control valve on 2005 mercury marguis ?
Jump start car and do not run heater with engine not running.
When the temperature drops, the mercury in the thermostat contracts, causing it to tilt and complete an electrical circuit that turns on the heater. This circuit allows electricity to flow through the heating system, activating it and raising the temperature in the room.
Probably because coolant level is low
On a 1998 Mercury Mountaineer, the temperature control sensor is typically located in the engine compartment, near the thermostat housing or on the intake manifold. It may also be positioned in the cabin, often near the heater core or behind the dashboard, depending on the specific model and features. For precise identification, consulting the vehicle's service manual or wiring diagrams would be beneficial.
The heater in a 2000 Mercury Mountaineer may turn off due to several reasons, such as a malfunctioning thermostat, a faulty heater control valve, or issues with the climate control system. It could also be caused by low coolant levels, which can affect heating performance. Additionally, electrical issues or a blown fuse could interrupt the heater's operation. Diagnosing the specific cause typically requires a thorough inspection of the heating system.
Replacing a heater blower on a Mercury Mountaineer typically takes about 2 to 3 hours, depending on your experience level and the tools available. The process involves removing the dashboard or access panel, disconnecting electrical connectors, and installing the new blower motor. If you're not familiar with automotive repair, it may take longer, so consider seeking professional help.