REMOVAL & INSTALLATION
This general procedure applies to all engines covered by this information. Slight variations may arise; adjust the procedure accordingly.
The A/C compressor may be removed and positioned without discharging the refrigerant system. Discharging is not normally necessary when removing the A/C compressor clutch/coil assembly, engine, cylinder head, or alternator. Simply support the compressor with strong wire from the vehicle's frame with the refrigerant lines connected. Do not detach the refrigerant lines if performing this.
If the refrigerant lines will be detached, plugs or another positive method (such as duct or electrical tape) to tightly seal the refrigerant lines immediately after they are opened will be necessary.
- If necessary, have the A/C system discharged by a reputable automotive technician using a refrigerant recovery/recycling machine.
- Disconnect the negative battery cable.
- Detach the clutch electrical connector.
- If completely removing the compressor, once the system has been discharged, unbolt the connections at the compressor and plug all four openings.
If the compressor is being removed for access to another engine component, do not remove the refrigerant lines from the compressor.
- Loosen and remove the accessory drive belt(s). For more information, refer to Routine Maintenance .
- While supporting the compressor, remove the two mounting bolts from the lower side of the compressor and the two mounting nuts from above it.
- Either remove the compressor from the engine compartment, or set it aside and secure it in place with strong cord or wire (depending on whether the compressor is being removed from the vehicle or not).
- Position the compressor in its mounting bracket, then tighten the attaching nuts and bolts to 40 ft. lbs. (54 Nm).
- Make sure the refrigerant line sealing surfaces are clean and free of scratches; replacement gaskets are necessary for assembly. Gaskets are specific to suction and discharge fittings, so fit them according to the number of pilots on the fitting/number of holes in the gasket.
- Position the refrigerant line flanges onto the compressor, then install the bolts. Tighten the bolts to 170-230 inch lbs. (19-26 Nm).
- Install and adjust the accessory drive belts, as described in Routine Maintenance .
- Connect the compressor clutch lead wire and the negative battery cable.
- Have the A/C system thoroughly evacuated, recharged and leak tested by a reputable automotive technician utilizing a refrigerant recovery/recycling machine. For more information, refer to Routine Maintenance .