Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 275 (HVAC CONTROL SYSTEM)REMOVAL AND INSTALLATIONPLENUM CHAMBERREMOVAL AND INSTALLATION
2010 Mercury Mariner Hybrid, AWD
Removal and Installation
2010 Mercury Mariner Hybrid, AWDSECTION Removal and Installation
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the instrument panel. For additional information, refer to INSTRUMENT PANEL AND CONSOLE .
- Drain the engine coolant. For additional information, refer to ENGINE COOLING .
- Release the 2 heater hose clamps and disconnect the heater hoses at the heater core.
- Detach the plenum chamber vacuum harness from the plenum chamber.
- Disconnect the temperature blend door actuator electrical connector.
- Disconnect the 2 air suspension control module electrical connectors.
- Remove the 3 plenum chamber nuts.
CAUTION:
Do not excessively cut the rear footwell duct. Make sure to only cut the rear footwell duct to the point that allows the heater floor duct to be removed with the plenum chamber as an assembly.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.