GM Service Manual Online
For 1990-2009 cars only

Air Conditioning Evaporator Thermal Expansion Valve Replacement L61/LAT


Object Number: 1538471  Size: MF

Callout

Component Name

Preliminary Procedure

Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

1

Hose A/C Evaporator Nut

Notice: Refer to Fastener Notice in the Preface section.

Tighten
20 N·m (15 lb ft)

2

A/C Evaporator Hose

3

A/C Receiver Dehydrator Tube Assembly

4

Sealing Washer

Tip
Remove and discard the seal. Refer to Sealing Washer Replacement .

5

Sealing Washer

Tip
Remove and discard the seal. Refer to Sealing Washer Replacement .

6

Thermal Expansion Valve (TXV) Bolts

Tighten
8 N·m (71 lb in)

7

TXV

8

A/C Evaporator Seal

Tip
Remove and discard the seal. Refer to O-Ring Replacement .

9

A/C Evaporator Seal

Tip
Remove and discard the seal. Refer to O-Ring Replacement .

Air Conditioning Evaporator Thermal Expansion Valve Replacement L66


Object Number: 1542223  Size: LF

Callout

Component Name

Preliminary Procedures

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the air cleaner duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .

1

Hose A/C Evaporator Nut

Notice: Refer to Fastener Notice in the Preface section.

Tighten
10 N·m (89 lb in)

2

Hose A/C Evaporator Nut

Tip
Remove the hoses from the thermal expansion valve (TXV) and position a side.

Tighten
20 N·m (15 lb ft)

3

Sealing Washer

Tip
Remove and discard the seal. Refer to Sealing Washer Replacement .

4

Sealing Washer

Tip
Remove and discard the seal. Refer to Sealing Washer Replacement .

5

TXV Bolts

Tighten
8 N·m (71 lb in)

6

TXV

7

A/C Evaporator Seal

Tip
Remove and discard the seal. Refer to O-Ring Replacement .

8

A/c Evaporator Seal

Tip
Remove and discard the seal. Refer to O-Ring Replacement .