Denso 7SBU16C A/C Compressor

REMOVAL

WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION. FAILURE TO FOLLOW THE WARNINGS AND CAUTIONS COULD RESULT IN POSSIBLE PERSONAL INJURY OR DEATH.

NOTE:
- The A/C compressor may be removed and repositioned without disconnecting the refrigerant lines or discharging the refrigerant system. Discharging is not necessary if servicing the compressor clutch, clutch coil or the engine.
- If an internal failure of the A/C compressor has occurred, the receiver/drier must be replaced.

1. Disconnect and isolate the negative battery cable.
2. Recover the refrigerant from the refrigerant system.
3. Remove the serpentine drive belt.
4. Disconnect the wire harness connector from the A/C compressor clutch coil.
5. Remove the bolts that secure the A/C suction and discharge lines to the A/C compressor.

Denso 7SBU16C A/C Compressor:

6. Disconnect the A/C suction and discharge lines from the A/C compressor and remove and discard the O-ring seals.
7. Install plugs in, or tape over the opened refrigerant line fittings and the compressor ports.
8. Raise the vehicle on a hoist.
9. If equipped with an add-on rear A/C system, remove the lower A/C compressor and position it out of the way.
10. Support the A/C compressor and remove the compressor mounting bolts.
11. Remove the A/C compressor from the engine compartment.

INSTALLATION

NOTE:
- Be certain to check the refrigerant oil level if the A/C compressor is being replaced. See Refrigerant Oil Level for the procedures. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- If an internal failure of the A/C compressor has occurred, the receiver/drier must be replaced.

1. Position the A/C compressor in the engine compartment and loosely install the three compressor retaining bolts. Tighten the bolts using the following sequence to 20 N.m (15 ft. lbs.).
- The upper bolt at the front of the compressor.
- The lower bolt at the front of the compressor.
- The bolt at the rear of the compressor.

2. If equipped with an add-on rear A/C system, install the lower A/C compressor.
3. Lower the vehicle.
4. Remove the tape or plugs from the opened suction line fitting and the discharge line fitting and the compressor ports.
5. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the suction and the discharge line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
6. Connect the A/C suction and discharge lines to the A/C compressor.
7. Install the bolts that secure the A/C suction and discharge lines to the A/C compressor. Tighten the bolts to 23 N.m (17 ft. lbs.).
8. Connect the wire harness connector to the A/C compressor clutch coil.
9. Install the accessory drive belt.
10. Replace the receiver/drier if the A/C compressor is being replaced due to an internal failure.
11. Reconnect the negative battery cable.
12. Evacuate the refrigerant system.
13. Charge the refrigerant system.