GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1998 🢒 Catera 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Air Conditioning Evaporator Core Replacement

Removal Procedure
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the TXV from the evaporator. Refer to Thermal Expansion Valve Replacement .
  3. Remove the steering column. Refer to Steering Column Replacement .
  4. Remove the brake pedal with the bracket. Refer to Brake Pedal Bracket Replacement in Hydraulic Brakes.

    5. Object Number: 153181 Size: SH
  5. Remove the evaporator:
    6. • Plug the fittings in order to prevent oil from dripping on the interior trim.
    • Carefully pull out the evaporator.

Installation Procedure

    Object Number: 153182 Size: SH
  1. Carefully install the evaporator into the module in order to prevent damage to the cooling fans.
  2. Install the brake pedal with the bracket. Refer to Brake Pedal Bracket Replacement in Hydraulic Brakes.
  3. Install the steering column. Refer to Steering Column Replacement .
  4. Install the TXV. Refer to Thermal Expansion Valve Replacement .
  5. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  6. Leak test the serviced A/C system connections.