GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Epica 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Conditioning Accumulator Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1256074 Size: SH
  1. Disconnect the negative battery cable.
  2. Discharge and recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the high-pressure pipe-to-receiver-dryer connecting block nut and remove the pipe from the receiver-dryer.
  4. Remove the receiver-dryer-to-condenser pipe nut.

    5. Object Number: 1256076 Size: SH
  5. Loosen the bolt that secures the receiver-dryer band clamp.

    6. Important: Hold the receiver-dryer-to-condenser pipe to support it so that the pipe is not damaged while being removed from the receiver-dryer.

  6. Remove the receiver-dryer by sliding it up and out of the band clamp.
  7. Cap all open connections to prevent contamination.
  8. Drain the oil from the receiver-dryer into a graduated container. Record the amount of oil drained.
  9. Discard the used oil.

Installation Procedure

    Object Number: 1256076 Size: SH

    Important: Do not uncap the new receiver-dryer until just prior to installation.

  1. Add the new oil to the new receiver-dryer. Use the exact amount of oil that you drained from the old receiver-dryer.
  2. Install new O-rings onto the 2 pipes that connect to the receiver-dryer.
  3. Install the receiver-dryer into the band clamp. Support the receiver-dryer-to-condenser pipe while pushing the receiver-dryer upward until the pipe is fully installed.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Tighten the bolt on the band clamp.

    5. Tighten
    Tighten the band clamp bolt to 5 N·m (44 lb in).


    Object Number: 1256074 Size: SH
  5. Install the high-pressure pipe into the receiver-dryer.
  6. Install the high-pressure pipe-to-receiver-dryer connecting block nut.

    7. Tighten

        • Tighten the high-pressure pipe-to-receiver-dryer connecting block nut to 10 N·m (89 lb in).
        • Tighten the receiver-dryer-to-condenser pipe nut to 14 N·m (10 lb ft).
  7. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .