A: The accumulator should be replaced whenever the condenser is replaced. The condenser is a small Radiator-like component mounted in front of the radiator that cools the refrigerant. Have the air conditioning system discharged and recovered. Disconnect the cable from negative terminal of the battery. Unbolt and disconnect the refrigerant lines from the condenser. Plug the lines and fittings to prevent the entry of moisture and contaminants. For 2007 and earlier models, remove the radiator and condenser as a unit, then separate the condenser from the radiator. On vehicles equipped with an automatic transmission, remove the transmission cooler to radiator bolts and set the transmission cooler aside. Remove the mounting bolts from the condenser brackets. Lift the condenser straight up and out of the condenser brackets. Plug the open fittings to prevent entry of dirt and moisture. For 2008 and later models, on V6 models, remove the air filter housing and fan shroud. Remove the grille. Remove the air seal around the condenser. Disconnect and cap the transmission cooler line, if equipped. Disconnect the nut that secures the lines to the A/C condenser and cover the lines. Remove the mounting bolts from the right side of the radiator. Carefully lift the condenser up and unhook or disengage the condenser mounting brackets from the radiator. Remove the accumulator from the vehicle. If replacing the condenser, remove the accumulator from the condenser. For all models, if the original condenser will be reinstalled, store it with the line fittings on top to prevent oil from draining out. If a new condenser is being installed, pour 0.75 oz (22 ml) of refrigerant oil into it prior to installation. New R-134a compatible O-rings should be used in each fitting during reassembly. Reinstall the components in the reverse order of removal. Have the system evacuated, recharged and leak-tested by the shop that discharged it.