How to Install AC Compresser on a 1991 Oldsmobile Cutlass Ciera Sl
The air conditioner compressor is the heart of your a/c system. The compressor takes the refrigerant and pressurizes it so it will cool off the car. It is run by a belt on the engine and has an electrically operated clutch that turns the compressor on and off as you want more or less cool air. Before installing an air conditioning compressor on your 1991 Oldsmobile Cutlass Ciera SI you will need to remove the old unit.
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Instructions
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Take the vehicle to a dealer service department or service station to have the system discharged. The air conditioning system is under high pressure and you should not attempt to loosen any hose fittings or remove any components until after this has been done by a professional.
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2
Disconnect the negative battery cable from the battery. Place to the side to avoid electrical shock.
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3
Set the parking brake and block the rear wheels. Raise the front of the vehicle and support it securely on jack stands.
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4
Remove the right under-vehicle splash shield. This is the rubber piece that keeps debris away from your motor.
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5
Locate the drivebelts at the front of the engine to begin removal. Remove the adjusting bolt and the pivot bolt. Move the component away from the engine and slide the belts off the pulleys. It may be necessary to remove the oil filter to provide clearance for compressor removal.
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6
Disconnect the compressor clutch electrical connector on the back side of the compressor clutch. Disconnect the refrigerant lines from the rear of the compressor.Put duct tape over the open fittings to prevent entry of dirt or moisture.
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7
Unbolt the compressor from the mounting brackets. Remove it from the vehicle.
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Follow the directions that came with the new compressor regarding the draining of excess oil prior to installation.
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Install by reversing the removal steps. Take the vehicle back to the service station and have it evacuated and recharged. Check for leaks.
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Tips & Warnings
If your vehicle is equipped with a Delco Loc II audio system make sure you disable it before disconnecting the battery.
