Removal Procedure
- Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
- Disconnect the negative battery cable.
- Remove the evaporator tube - front to evaporator tube - rear retaining bolt.
- Disconnect the evaporator tube - front from the evaporator tube - rear, discard the O-ring seal and cap or tape the evaporator tube - front to prevent contamination.
- Using needle nose plyers, CAREFULLY grasp the edge of the expansion (orifice) tube without touching the filter screen and pull to remove the tube; cap or tape the evaporator tube - rear to prevent contamination.
- Inspect the expansion (orifice) tube for the following conditions and clean or replace with a new tube as indicated:
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Important: Cap or tape the open evaporator tube - front immediately.
Important: Cap or tape the open evaporator tube - rear immediately.
| • | Broken plastic frame; replace tube |
| • | Filter screen (1,2) torn, damaged or plugged with fine gritty material; replace tube |
| • | Brass orifice tube (3) damaged or plugged; replace tube |
| • | Filter screen (1) coated with metal chips, flakes or slivers; coating may be removed with low pressure shop air and reused if cleaned satisfactorily |
| • | If reusing the tube, install a new O-ring (4) |
Installation Procedure
- Remove the cap or tape from the evaporator tube - rear.
- Using needle nose plyers, CAREFULLY grasp the edge of the expansion (orifice) tube (long filter screen inlet side of tube) without touching the filter screen and insert the tube (short filter screen outlet side first) fully into the evaporator tube - rear.
- Remove the cap or tape from the evaporator tube - front.
- Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the evaporator tube - front and the evaporator tube - rear.
- Lightly coat the O-ring seal (1) with mineral base 525 viscosity refrigerant oil.
- Carefully slide the new O-ring seal (1) onto the evaporator tube - front until seated.
- Install the evaporator tube - front to the evaporator tube - rear.
- Install the evaporator tube - front to evaporator tube - rear retaining bolt.
- Connect the negative battery cable.
- Program the transmitters. Refer to Transmitter Programming/Synchronization in Keyless Entry.
- Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
- Check the evaporator tube - front to evaporator tube - rear joint for leaks. Refer to Leak Testing .
Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.
Leave a light coating of the refrigerant oil to remain on the evaporator tube - front in the area indicated (2) ONLY.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten the evaporator tube - front to evaporator
tube - rear retaining bolt to 27 N·m (20 lb ft).
Tighten
Tighten the negative battery cable bolt to 15 N·m (11 lb ft).
