GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Discharge Hose Replacement

Discharge Hose Replacement L26


Object Number: 1648094 Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications

Preliminary Procedure

  1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  3. Remove the front air deflector. Refer to Front Air Deflector Replacement

    4. Important: Seal the A/C system ports after the hose is removed in order to keep A/C system from being contaminated.

  4. Disconnect the A/C compressor and condenser hose electrical connector.

1

A/C Compressor And Condenser Hose Retaining Nut

Tighten
16 N·m (12 lb ft)

2

Sealing Washer

Tip
Remove and discard the sealing washer. Refer to Sealing Washer Replacement

3

A/C Compressor And Condenser Hose Retaining Nut

Tighten
16 N·m (12 lb ft)

4

Sealing Washer

Tip
Remove and discard the sealing washer. Refer to Sealing Washer Replacement

5

A/C Compressor And Condenser Hose

Tip
Leak test the fittings using J 39400-A

Discharge Hose Replacement LD8


Object Number: 1649199 Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications

Preliminary Procedure

  1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  3. Remove the front air deflector. Refer to Front Air Deflector Replacement

    4. Important: Seal the A/C system ports after the hose is removed in order to keep A/C system from being contaminated.

  4. Disconnect the A/C compressor and condenser hose electrical connector.

1

A/C Compressor And Condenser Hose Retaining Nut

Tighten
16 N·m (12 lb ft)

2

Sealing Washer

Tip
Remove and discard the sealing washer. Refer to Sealing Washer Replacement

3

A/C Compressor And Condenser Hose Retaining Nut

Tighten
16 N·m (12 lb ft)

4

Sealing Washer

Tip
Remove and discard the sealing washer. Refer to Sealing Washer Replacement

5

A/C Compressor And Condenser Hose

Tip
Leak test the fittings using J 39400-A