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 MANUALSMERCURY2009MOUNTAINEER 4.6 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 46 (HVAC CLIMATE CONTROL SYSTEM)REMOVAL AND INSTALLATIONCOMPRESSOR TO CONDENSER DISCHARGE LINEREMOVAL AND INSTALLATION
2009 Mercury Mountaineer 4.6 8, RWD
Removal And Installation
2009 Mercury Mountaineer 4.6 8, RWDSECTION Removal And Installation
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
5.4L (4V) vehicles
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING AND LIFTING .
- Remove the Air Cleaner (ACL) outlet tube. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING .
- Recover the refrigerant. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
- Disconnect the compressor discharge fitting.
- Discard the O-ring seals.
- Disconnect the dual-function pressure switch electrical connector and remove the dual-function pressure switch.
- Remove the condenser inlet fitting nut and disconnect the fitting.
- Discard the O-ring seal.
- To install, tighten to 8 Nm (71 lb-in).
- Detach the compressor-to-condenser discharge line from the A/C line bracket.
- Remove the compressor-to-condenser discharge line.
- To install, reverse the removal procedure.
- Install new O-ring seals.
- Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
- Evacuate, leak test and charge the refrigerant system. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
4.6L vehicles
All vehicles
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.