GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 893603  Size: SH
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Using a back-up wrench to support service port base, use a second wrench to remove the valve assembly.

Installation Procedure


    Object Number: 893603  Size: SH
  1. Lubricate the valve assembly O-ring with mineral oil.
  2. Thread the valve assembly into the service port base.
  3. Tighten
    Tighten the valve to 12 N·m (106 lb in).

    Important: To prevent loss of refrigerant charge, make sure to install and tighten cap. Replace cap if seal is missing or damaged.

  4. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  5. Using the J 39400-A leak test the fittings of the component.