Accumulator: Removal & Installation - Chevrolet Trailblazer Service Manual

Accumulator
Removal & Installation
To Remove:
1. Recover the refrigerant from the A/C system.
2. Disconnect A/C low pressure switch connector.
3. Remove the A/C low pressure switch from the accumulator.
4. Remove the accumulator retaining nut from the evaporator.
5. Remove the compressor suction hose assembly from the accumulator.
6. Remove and discard the O-rings from the accumulator.
7. Remove the nut from the accumulator clamp.
8. Remove the accumulator from the vehicle.
To Install:
1. Install the accumulator into the vehicle.
2. Install the nut onto the accumulator clamp. Torque the nut to 88 in-lb (10 Nm).
3. Install the A/C low pressure switch into the accumulator. Torque the switch to 44
in-lb (5 Nm).
4. Install the O-rings onto the accumulator.
5. Install the accumulator retaining nut onto the evaporator. Torque the nut to 21 ft-lb
(28 Nm).
6. Install the compressor suction hose assembly onto the accumulator. Torque the nut
to 35 ft-lb (48 Nm).
7. Connect A/C low pressure switch connector.
8. Evacuate and recharge the refrigerant in the A/C system.
9. Use a J 39400-A halogen leak detector to leak test the component fittings.
Accumulator removal and installation