A/C Refrigerant Liquid Line, Front
A/C Refrigerant Liquid Line, Front
Review safety precautions and warnings in this group before performing this procedure. Failure to follow the warnings and cautions may result in serious or fatal injury.
• The A/C liquid line is serviced in two sections. The front section connects between the A/C condenser and the receiver/drier. The rear section connects between the receiver/drier and the A/C expansion valve. On models equipped with the rear HVAC system, the rear section of the A/C liquid line also includes an extension tube that connects the liquid line to the underbody lines.
Removing
- Disconnect and isolate the negative battery cable.
- Recover the refrigerant from the refrigerant system. Refer to => [ Refrigerant System, Recovery ] Refrigerant System, Recovery.
- Remove the air cleaner housing and inlet duct from the engine compartment.
- Remove the bolt (1) that secures the front section of the A/C liquid line (2) to the A/C receiver/drier (3).
- Disconnect the front section of the A/C liquid line from the A/C receiver/drier and remove and discard the O-ring seal.
- Remove the nut (1) that secures the front section of the A/C liquid line (3) to the condenser tapping block (2) located in the right front corner of the engine compartment.
- Disconnect the front section of the A/C liquid line from the A/C condenser and remove and discard the O-ring seals and gasket.
- Disengage the front section of the A/C liquid line from the retaining clip located near the right frame rail and remove the liquid line from the engine compartment.
- Install plugs in, or tape over the opened refrigerant line fittings and the condenser and receiver/drier ports.
Installing
Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to => [ A/C Compressor Refrigerant Oil Charge ] A/C Compressor Refrigerant Oil Charge. Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.
• When replacing multiple A/C system components, refer to the refrigerant oil capacities chart to determine how much oil should be added to the refrigerant system. Refer to => [ A/C Compressor Refrigerant Oil Charge ] A/C Compressor Refrigerant Oil Charge.
• Replacement of the refrigerant line seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals, metal gaskets or washer seals may result in a refrigerant system leak.
- Remove the tape or plugs from the opened refrigerant line fittings and the condenser and receiver/drier ports.
- Lubricate new seals with clean refrigerant oil and install them onto the opened refrigerant line fittings. Use only the specified seals 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.
- Position the front section of the A/C liquid line (3) into the engine compartment and engage the liquid line to the retaining clip located near the right frame rail.
- Connect the front section of the A/C liquid line to the condenser tapping block (2).
- Install the nut (1) that secures the front section of the A/C liquid line to the A/C condenser. Tighten the nut to 23 Nm (17 ft lbs).
- Connect the front section of the A/C liquid line (2) to the A/C receiver/drier (3).
- Install the bolt (1) that secures the front section of the A/C liquid line to the A/C receiver/drier. Tighten the bolt to 13.5 Nm (120 in lbs).
- Install the air cleaner housing and inlet duct.
- Connect the negative battery cable.
- Evacuate the refrigerant system. Refer to => [ Refrigerant System, Evacuate ] Refrigerant System, Evacuate.
- Adjust the refrigerant oil level. Refer to => [ A/C Compressor Refrigerant Oil Charge ] A/C Compressor Refrigerant Oil Charge.
- Charge the refrigerant system. Refer to => [ Refrigerant System, Charging ] Refrigerant System, Charging.