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 MANUALSHONDA2006RIDGELINE RTLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (HEATING/AIR CONDITIONING)A/C COMPRESSOR REPLACEMENT
2006 Honda Ridgeline RTL
A/C Compressor Replacement
2006 Honda Ridgeline RTLSECTION A/C Compressor Replacement
WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
- If the A/C compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off.
- Make sure you have the anti-theft codes for the radio and the navigation system, then write down the audio presets.
- Disconnect the negative cable from the battery.
- Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY ).
- Remove the alternator (see TENSIONER PULLEY REPLACEMENT ).
- Remove the bolts from the cooler line brackets (A).
- Remove the A/C compressor clutch harness clip (A) from the A/C condenser fan shroud (B), then disconnect the connector. Disconnect the A/C condenser fan connector (C), then remove the wire harness clips (D) from the A/C condenser fan shroud. Loosen the lower mounting bolts, then remove the upper mounting bolts and the A/C condenser fan shroud. Be careful not to damage the radiator fins when removing the A/C condenser fan shroud.
- Disconnect the A/C compressor clutch connector (A) remove the bolt and the nut, then disconnect the suction line (B) and discharge line (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
- Remove the mounting bolts and the A/C compressor. Be careful not to damage the radiator fins when removing the A/C compressor.
- Install the A/C compressor in the reverse order of removal, and note these items:
- If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it (see A/C SERVICE TIPS AND PRECAUTIONS ).
- Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
- Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only.
- To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
- Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
- Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately.
- Be careful not to damage the radiator fins when installing the A/C compressor or the A/C condenser fan shroud.
- Charge the system (see SYSTEM CHARGING ).
- Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
- Enter the anti-theft codes for the radio, and the navigation system then enter the audio presets.
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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.