Honda Prelude Accord Civic S2000 2001-2006

Compressor

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Removal & Installation



Accord
2001-02 4-Cylinder Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. If the 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.
  2.  
  3. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
  4.  
  5. Disconnect the negative cable from the battery.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Loosen the A/C compressor belt.
  10.  
  11. Remove the nuts, then disconnect the suction line (A) and discharge line (B) from the compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Remove the nuts, then disconnect the suction line (A) and discharge line (B) from the compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination

  12.  
  13. Disconnect the compressor clutch connector (A), then remove the mounting bolts and the compressor (B).

    Click image to see an enlarged view

    Fig. Disconnect the compressor clutch connector (A), then remove the mounting bolts and the compressor (B)

  14.  
  15. Remove the bolts, the suction service valve (A) and the O-ring (B) from the compressor.

    Click image to see an enlarged view

    Fig. Remove the bolts, the suction service valve (A) and the O-ring (B) from the compressor

  16.  
  17. If necessary, remove the mounting bolts, mounting nuts and the compressor bracket.

    Click image to see an enlarged view

    Fig. If necessary, remove the mounting bolts, mounting nuts and the compressor bracket

  18.  

To install:

  1. Install the compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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 right O-rings for HFC-134a (R-134a) to avoid leakage.
    6.  
    7. Use refrigerant oil (DENSO ND-OIL8) for HFC-134a DENSO piston type compressors only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Adjust the A/C compressor belt, as outlined in the Engine Mechanical Section.
    16.  

  2.  
  3. Charge the system, as outlined in this section.
  4.  
  5. Enter the anti-theft code for the radio, then enter the radio station presets.
  6.  

2001-02 V6 Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please

  1. If the 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.
  2.  
  3. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Remove the alternator, as outlined in the Engine Mechanical Section.
  10.  
  11. Remove the compressor clutch connector (A) from the condenser fan shroud (B), then disconnect the compressor clutch connector. Disconnect the condenser fan connector (C), then remove the wire harness clips (D) from the condenser fan shroud. Remove the cruise control actuator cable (E) from the clamp.
  12.  
  13. Loosen the lower mounting bolt, then remove the upper mounting bolts and the condenser fan shroud. Be careful not to damage the radiator fins when removing the condenser fan shroud.

    Click image to see an enlarged view

    Fig. Remove the compressor clutch connector (A) from the condenser fan shroud (B), then disconnect the compressor clutch connector. Disconnect the condenser fan connector (C), then remove the wire harness clips (D) from the condenser fan shroud. Remove the cruise control actuator cable (E) from the clamp

  14.  
  15. Remove the bolt and the nut, then disconnect the suction line (A) and discharge line (B) from the compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Remove the bolt and the nut, then disconnect the suction line (A) and discharge line (B) from the compressor

  16.  
  17. Remove the mounting bolts and the compressor. Be careful not to damage the radiator fins when removing the compressor.

    Click image to see an enlarged view

    Fig. Exploded view of the compressor mounting-2001-02 Accord with V6 engine

  18.  
  19. If necessary, remove the mounting bolts and the compressor bracket.

    Click image to see an enlarged view

    Fig. If necessary, remove the mounting bolts, mounting nuts and the compressor bracket

  20.  

To install:

  1. Install the compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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 right O-rings for HFC-134a (R-134a) to avoid leakage.
    6.  
    7. Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Be careful not to damage the radiator fins when installing the compressor and the condenser fan shroud.
    16.  
    17. Charge the system, as outlined in this section.
    18.  
    19. Enter the anti-theft code for the radio, then enter the customer's radio station presets.
    20.  

  2.  

2003-06 4-Cylinder Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. 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.
  2.  
  3. Make sure you have the anti-theft codes for the audio and the navigation system, then write down the audio presets.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Remove the alternator, as outlined in the Engine Electrical Section.
  10.  
  11. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud, then disconnect the connector. 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.

    Click image to see an enlarged view

    Fig. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud, then disconnect the connector. Remove the bolt and the nut, then disconnect the suction line (B) and discharge line (C) from the A/C compressor

  12.  
  13. Remove the mounting bolts and the A/C compressor. Be careful not to damage the radiator fins when removing the A/C compressor.

    Click image to see an enlarged view

    Fig. A/C compressor mounting-2003-06 Accord with 4-cylinder engine

  14.  

To install:

  1. Install the A/C compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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.
    6.  
    7. Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Be careful not to damage the radiator fins when installing the A/C compressor and the A/C condenser fan shroud.
    16.  
    17. Charge the system, as outlined in this section.
      NOTE
      Reset the power window control unit using one of the two following procedures.

    18.  

  2.  
  3. Resetting the power window control unit with an HDS:
    1. Connect the Honda Diagnostic System (HDS) to the vehicle's DLC.
    2.  
    3. Turn the ignition switch ON (II), then enter the vehicle's VIN and mileage at the prompts.
    4.  
    5. Select Body Electrical from the System Selection menu.
    6.  
    7. From the Body Electrical System Select menu, select Power Windows.
    8.  
    9. From the Mode menu, select Adjustments.
    10.  
    11. From the Adjustment menu, select Window P Reset.
    12.  
    13. Follow the prompts on the screen.
    14.  
    15. Confirm that the power window master switch is reset by using the driver's window AUTO UP and DOWN function.
    16.  

  4.  
  5. Resetting the power window control unit without an HDS:
    1. Turn the ignition switch ON (II).
    2.  
    3. Move the driver's window all the way down by using the driver's window DOWN switch.
    4.  
    5. Open the driver's door.
      NOTE
      Steps d.-g. must be done within 5 seconds of each other.

    6.  
    7. Turn the ignition switch OFF.
    8.  
    9. Push and hold the driver's window DOWN switch.
    10.  
    11. Turn the ignition switch ON (II).
    12.  
    13. Release the driver's window DOWN switch.
    14.  
    15. Repeat steps d.-g. three more times.
    16.  
    17. Wait 1 second.
    18.  
    19. Confirm that AUTO UP and AUTO DOWN do not work. If AUTO UP and DOWN work, go back to step a.
    20.  
    21. Move the driver's window all the way down by holding the driver's window DOWN switch to the AUTO DOWN position.
    22.  
    23. Pull up and hold the driver's window UP switch to the AUTO UP position until the window reaches the fully closed position, then continue to hold the switch for 1 second.
    24.  
    25. Confirm that the power window master switch is reset by using the driver's window AUTO UP and DOWN function.
    26.  
    27. If the window still does not work in AUTO, repeat the procedure several times, paying close attention to the 5 second time limit between steps.
    28.  

  6.  
  7. Enter the anti-theft codes for the audio and the navigation system, then enter the audio presets
  8.  

2003-06 V6 Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. 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.
  2.  
  3. Make sure you have the anti-theft codes for the audio and the navigation system, then write down the audio presets.
  4.  
  5. Disconnect the negative cable from the battery.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Remove the ignition coil cover, and the alternator, as outlined in the Engine Electrical Section.
  10.  
  11. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B). Disconnect the A/C condenser fan connector (C), then remove the wire harness clip (D) from the A/C condenser fan shroud. Remove the hose (E) from the radiator. Loosen the lower mounting bolt, 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.

    Click image to see an enlarged view

    Fig. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B). Disconnect the A/C condenser fan connector (C), then remove the wire harness clip (D) from the A/C condenser fan shroud. Remove the hose (E) from the radiator

  12.  
  13. 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.

    Click image to see an enlarged view

    Fig. 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

  14.  
  15. Remove the mounting bolts and the A/C compressor. Be careful not to damage the radiator fins when removing the A/C compressor.

    Click image to see an enlarged view

    Fig. A/C compressor mounting-2003-06 Accord with V6 engine

  16.  

To install:

  1. Install the A/C compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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.
    6.  
    7. Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Be careful not to damage the radiator fins when installing the A/C compressor and the A/C condenser fan shroud.
    16.  
    17. Charge the system, as outlined in this section.
      NOTE
      Reset the power window control unit using one of the two following procedures.

    18.  

  2.  
  3. Resetting the power window control unit with an HDS:
    1. Connect the Honda Diagnostic System (HDS) to the vehicle's DLC.
    2.  
    3. Turn the ignition switch ON (II), then enter the vehicle's VIN and mileage at the prompts.
    4.  
    5. Select Body Electrical from the System Selection menu.
    6.  
    7. From the Body Electrical System Select menu, select Power Windows.
    8.  
    9. From the Mode menu, select Adjustments.
    10.  
    11. From the Adjustment menu, select Window P Reset.
    12.  
    13. Follow the prompts on the screen.
    14.  
    15. Confirm that the power window master switch is reset by using the driver's window AUTO UP and DOWN function.
    16.  

  4.  
  5. Resetting the power window control unit without an HDS:
    1. Turn the ignition switch ON (II).
    2.  
    3. Move the driver's window all the way down by using the driver's window DOWN switch.
    4.  
    5. Open the driver's door.
      NOTE
      Steps d.-g. must be done within 5 seconds of each other.

    6.  
    7. Turn the ignition switch OFF.
    8.  
    9. Push and hold the driver's window DOWN switch.
    10.  
    11. Turn the ignition switch ON (II).
    12.  
    13. Release the driver's window DOWN switch.
    14.  
    15. Repeat steps d.-g. three more times.
    16.  
    17. Wait 1 second.
    18.  
    19. Confirm that AUTO UP and AUTO DOWN do not work. If AUTO UP and DOWN work, go back to step a.
    20.  
    21. Move the driver's window all the way down by holding the driver's window DOWN switch to the AUTO DOWN position.
    22.  
    23. Pull up and hold the driver's window UP switch to the AUTO UP position until the window reaches the fully closed position, then continue to hold the switch for 1 second.
    24.  
    25. Confirm that the power window master switch is reset by using the driver's window AUTO UP and DOWN function.
    26.  
    27. If the window still does not work in AUTO, repeat the procedure several times, paying close attention to the 5 second time limit between steps.
    28.  

  6.  
  7. Enter the anti-theft codes for the audio and the navigation system, then enter the audio presets
  8.  

Civic
2001-05 Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. 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.
  2.  
  3. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Remove the alternator, as outlined in the Engine Electrical Section.
  10.  
  11. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B), then disconnect the A/C compressor clutch connector. Disconnect the A/C condenser fan connector (C), then remove the wire harness clip (D) from the A/C condenser fan shroud. Remove the 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.

    Click image to see an enlarged view

    Fig. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B), then disconnect the A/C compressor clutch connector. Disconnect the A/C condenser fan connector (C), then remove the wire harness clip (D) from the A/C condenser fan shroud. Remove the 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

  12.  
  13. Remove the nuts, then disconnect the suction line (A) and discharge line (B) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Remove the nuts, then disconnect the suction line (A) and discharge line (B) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination

  14.  
  15. Remove the mounting bolts and the A/C compressor. Be careful not to damage the radiator fins when removing the A/C compressor.

    Click image to see an enlarged view

    Fig. Exploded view of the A/C compressor mounting and tightening specifications-2001-05 Civic

  16.  

To install:

  1. Install the A/C compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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.
    6.  
    7. Use refrigerant oil (SANDEN SP-10) for HFC-134a SANDEN spiral type A/C compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Be careful not to damage the radiator fins when installing the A/C compressor and the A/C condenser fan shroud.
    16.  
    17. Charge the system, as outlined in this section.
    18.  

  2.  
  3. Perform the ECM/PCM idle learn procedure, as follows:
    1. Make sure all electrical items (A/C, audio, rear defogger, lights, etc.) are off.
    2.  
    3. Start the engine, and hold it at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194 ºF (90 ºC).
    4.  
    5. Let the engine idle for about 5 minutes with the throttle fully closed.
      NOTE
      If the radiator fan comes on, do not include its running time in the 5 minutes.

    6.  

  4.  
  5. Enter the anti-theft code for the radio, then enter the radio station presets.
  6.  

2006 Models-Except SI

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.


NOTE
Never not install an A/C compressor into a system unless you are completely sure that the system is free of contamination. Installing the A/C compressor into a contaminated system can result in premature A/C compressor failure.

  1. 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.
  2.  
  3. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  4.  
  5. Make sure you have the anti-theft code for the audio or navigation system, then write down the audio presets.
  6.  
  7. Remove the front grille cover.
  8.  
  9. Remove the alternator, as outlined in the Engine Electrical Section.
  10.  
  11. Disconnect the connector (A) from the A/C condenser fan motor. Remove the wire harness clip (B) and the connector clip (C). Remove the upper mounting bolts, and the A/C condenser fan shroud (D). Be careful not to damage the radiator fins when removing the A/C condenser fan shroud.

    Click image to see an enlarged view

    Fig. Disconnect the connector (A) from the A/C condenser fan motor. Remove the wire harness clip (B) and the connector clip (C). Remove the upper mounting bolts, and the A/C condenser fan shroud (D)

  12.  
  13. Remove the bolt and the nut, then disconnect the suction hose (A) and discharge hose (B) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Remove the bolt and the nut, then disconnect the suction hose (A) and discharge hose (B) from the A/C compressor

  14.  
  15. Remove the mounting bolts and the A/C compressor (A). Be careful not to damage the radiator fins when removing the A/C compressor.

    Click image to see an enlarged view

    Fig. Exploded view of the compressor mounting and tightening specifications-2006 Civic, except Si models

  16.  

To install:

  1. Install the compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. Inspect the A/C lines for any signs of contamination.
    4.  
    5. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it. A new A/C compressor comes with a full charge of oil.
    6.  
    7. 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.
    8.  
    9. Use refrigerant oil (SANDEN SP-10) for HFC-134a SANDEN spiral type A/C compressor only.
    10.  
    11. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    12.  
    13. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    14.  
    15. 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.
    16.  
    17. Charge the system, as outlined in this section.
    18.  
    19. Enter the anti-theft code for the audio or navigation system, then enter the customer's audio presets.
    20.  

  2.  
  3. Reset the power window control unit, as follows:
    1. Turn the ignition switch ON (II).
    2.  
    3. Move the driver's window all the way down by using the driver's window DOWN switch.
    4.  
    5. Open the driver's door.
      NOTE
      Steps d.-g. must be done within 5 seconds of each other.

    6.  
    7. Turn the ignition switch OFF.
    8.  
    9. Push and hold the driver's window DOWN switch.
    10.  
    11. Turn the ignition switch ON (II).
    12.  
    13. Release the driver's window DOWN switch.
    14.  
    15. Repeat steps d.-g. three more times.
    16.  
    17. Wait 1 second.
    18.  
    19. Check if the AUTO UP and AUTO DOWN functions still work. If they do, the auto function has not been cleared; go back to step a.. If they do not, go to step k..
    20.  
    21. Move the driver's window all the way down by using the driver's window DOWN switch.
    22.  
    23. Pull up and hold the driver's window UP switch until the window reaches the fully closed position, then continue to hold the switch for 1 second.
    24.  
    25. Confirm that the power window control unit is reset by using the driver's window AUTO UP and AUTO DOWN functions. If the window still does not work in AUTO, repeat the procedure several times, paying close attention to the 5 second time limit between steps.
    26.  

  4.  
  5. Set the clock.
  6.  

2006 SI Models

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.


NOTE
Never install an A/C compressor into a system unless you are completely sure that the system is free of contamination. Installing the A/C compressor into a contaminated system can result in premature A/C compressor failure.

  1. 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.
  2.  
  3. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  4.  
  5. Remove the front grille cover.
  6.  
  7. Remove the drive belt, as outlined in the Engine Mechanical Section
  8.  
  9. Remove the clips (A) and the bolts shown in the accompanying illustration.

    Click image to see an enlarged view

    Fig. Remove the clips (A) and the bolts shown

  10.  
  11. Remove the bolts, the connector, wire harness clips, and the bulkhead.
  12.  
  13. Disconnect the connector from the A/C condenser fan motor. Remove the wire harness clip, 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.
  14.  
  15. Remove the bolt.

    Click image to see an enlarged view

    Fig. Remove the bolt

  16.  
  17. Remove the splash shield.
  18.  
  19. Disconnect the connector (A). Remove the bolt and the nut ,then disconnect the suction hose (B) and discharge hose (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Disconnect the connector (A). Remove the bolt and the nut ,then disconnect the suction hose (B) and discharge hose (C) from the A/C compressor

  20.  
  21. Remove the mounting bolts and the A/C compressor (A). Be careful not to damage the radiator fins when removing the A/C compressor.

    Click image to see an enlarged view

    Fig. Exploded view of the compressor (A) mounting and tightening specifications-2006 Si models

  22.  

To install:

  1. Install the compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. Inspect the A/C lines for any signs of contamination.
    4.  
    5. 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.
    6.  
    7. Use refrigerant oil (SANDEN SP-10) for HFC-134a SANDEN spiral type A/C compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Charge the system, as outlined in this section.
    16.  

  2.  

Prelude

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. If the compressor is marginally operable, run the engine at idle speed, and let the air conditioner work for a few minutes, then shut the engine off.
  2.  
  3. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Recover the refrigerant with a Recovery/Recycling/Charging System, as outlined earlier in this section.
  8.  
  9. Loosen the A/C compressor belt, then remove it from the pulleys.
  10.  
  11. Disconnect the condenser fan connector. Remove the compressor clutch connector from the condenser fan shroud, then disconnect the compressor clutch connector. Remove the bolt and the suction line bracket as shown. Loosen the lower mounting bolt, then remove the upper mounting bolts and the condenser fan shroud.
    WARNING
    Be careful not to damage the radiator fins when removing the condenser fan shroud.

  12.  
  13. Remove the nut and the bolt, then disconnect the suction and discharge lines from the compressor.
    NOTE
    Plug or cap the lines immediately after disconnecting them to avoid moisture and dust co


    WARNING
    Be careful not to damage the radiator fins when removing the compressor.

  14.  
  15. Remove the mounting bolts and the compressor. If necessary, remove the lower mounting bolt from the heat insulator, then remove the mounting bolts, the mounting nuts and the compressor bracket.
  16.  

To install:

  1. Installation is the reverse of the removal procedure. Note the following tightening specifications:
    1. Compressor bracket nuts and bolts: 36 ft. lbs. (49 Nm)
    2.  
    3. Compressor mounting bolts: 16 ft. lbs. (22 Nm)
    4.  
    5. Discharge and suction line bolts: 7.2 ft. lbs. (9.8 Nm)
    6.  

  2.  
  3. When installing the compressor, please note the following:
    1. If you're installing a new compressor, drain all the refrigerant oil from the removed compressor, and measure its volume. Subtract the volume of drained oil from 130 ml (4 1/3 fl-oz, 4.6 Imp-oz); the result is the amount of oil you should drain from the new compressor (through the suction fitting).
    2.  
    3. Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them.
      NOTE
      Be sure to use the right O-rings for HFC-134a (R-134a) to avoid leakage.

    4.  
    5. Use refrigerant oil (SP-10) for R-134a KEIHIN spiral type compressors only.
    6.  
    7. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    8.  
    9. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
    10.  
    11. 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.
    12.  
    13. Be careful not to damage the radiator fins when installing the compressor.
    14.  
    15. Adjust the A/C compressor belt, as outlined in the Engine Mechanical Section.
    16.  

  4.  
  5. Charge the A/C system, as outlined earlier in this section.
  6.  
  7. Enter the anti-theft code for the radio, then enter the radio station presets.
  8.  

S2000

CAUTION
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components. When servicing the A/C system, please note the precautions at the beginning of this section.

  1. 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.
  2.  
  3. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Recover the refrigerant with a recovery/recycling/charging station, as outlined in this section.
  8.  
  9. Remove the air cleaner housing.
  10.  
  11. Remove the alternator, as outlined in the Engine Electrical Section.
  12.  
  13. Remove the nuts, then disconnect the suction line (A) and the discharge line (B) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

    Click image to see an enlarged view

    Fig. Remove the nuts, then disconnect the suction line (A) and the discharge line (B) from the A/C compressor

  14.  
  15. Disconnect the A/C compressor clutch connector, then remove the mounting bolts and the A/C compressor.

    Click image to see an enlarged view

    Fig. Disconnect the A/C compressor clutch connector, then remove the mounting bolts and the A/C compressor

  16.  
  17. If necessary, remove the mounting bolts and the A/C compressor bracket.

    Click image to see an enlarged view

    Fig. A/C compressor bracket mounting

  18.  

To install:

  1. Install the A/C compressor in the reverse order of removal, and note these items:
    1. Tighten the retainers to the specifications shown in the accompanying illustrations.
    2.  
    3. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it.
    4.  
    5. 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.
    6.  
    7. Use refrigerant oil (KEIHIN SP-10) for HFC-134a KEIHIN spiral type A/C compressor only.
    8.  
    9. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    10.  
    11. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    12.  
    13. 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.
    14.  
    15. Charge the system, as outlined in this section.
    16.  
    17. For 2001-05 models, perform the ECM idle learn procedure, as follows:
    18.  
    19. Leave the IAC valve connected.
    20.  
    21. Before checking the idle speed, check these items:

      The MIL has not been reported on.
       
      Ignition timing
       
      Spark plugs
       
      Air cleaner
       
      PCV system
       

    22.  
    23. On Canadian models, pull the parking brake lever up. Start the engine, then check that the headlights are off.
    24.  
    25. Disconnect the EVAP canister purge valve 2P connector.
    26.  
    27. Connect a tachometer.
    28.  
    29. Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.
    30.  
    31. Check the idle speed without load conditions: headlights, blower fan, radiator fan, and air conditioner off. The idle speed should be 750-850 rpm.
    32.  
    33. Let the engine idle for 1 minute with high electric load (A/C switch ON, temperature set to Max cool, blower fan on High, and head light on high beam). The idle speed should be 850-950 rpm.
      NOTE
      If the idle speed is not within specification, do the symptom troubleshooting.

    34.  
    35. Reconnect the EVAP canister purge valve 2P connector.

      Click image to see an enlarged view

      Fig. Test connections for the idle learn procedure-2001-05 models

    36.  
    37. For 2006 models, perform the ECM idle learn procedure, as follows:
    38.  
    39. Make sure all electrical items (A/C, audio, rear window defogger, lights, etc.) are off.
    40.  
    41. Reset the ECM with the HDS.
    42.  
    43. Turn the ignition switch ON (II), and wait 2 seconds.
    44.  
    45. Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194 ºF (90 ºC).
    46.  
    47. Let the engine idle about 5 minutes with the throttle fully closed.
      NOTE
      If the radiator fan comes on, do not include its running time in the 5 minutes.

    48.  

  2.  
  3. Enter the anti-theft code for the radio, then enter the audio presets.
  4.  

 
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