The accumulator assembly service replacement component includes O-rings (as needed) for connections. Do not service the desiccant within the shell separately. The desiccant is part of the sealed accumulator assembly.

Replace the accumulator assembly only when the following conditions occur:

Accumulators do not require periodic replacement due to the following changes:

The following repairs reduce the ability of moisture to enter the refrigerant system:

Refer to Refrigerant Recovery and Recharging .

Tools Required

J 39500-B R-134a Refrigerant Recovery, Recycling and Recharging (ACR4) System

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.

1. Disconnect the negative battery cable.
2. Use the J 39500-B in order to recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
4. Remove the cruise control stepper motor bracket (if equipped). Position aside the bracket.



5. Disconnect the refrigerant lines at the accumulator (1). Discard the O-ring seals.
6. Remove the clamp on the accumulator bracket (3).
7. Remove the accumulator (1) from the vehicle.

1. Install the accumulator (1).

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.

2. Install the accumulator bracket (3) clamp.

Tighten
Tighten the bolt to 8 N·m (71 lb in).

Important: Add the required amount of new refrigerant oil. Refer to Refrigerant Oil Distribution .

3. Install the refrigerant lines at the accumulator. Use the O-ring seals.

Tighten
Tighten the bolt to 24 N·m (18 lb ft).

4. Install the cruise control stepper motor bracket.
5. Connect the negative battery cable.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).

6. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .