Special Tools

J 39400-A Halogen Leak Detector

1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 3.8L engine or Air Cleaner Assembly Replacement for the 5.3L (LS4) engine.
2. Disconnect the electrical connector from the A/C refrigerant pressure sensor.



3. Remove the refrigerant pressure sensor from the liquid line.

1. Install the new O-ring seal. Refer to O-Ring Replacement.

Caution: Refer to Fastener Caution in the Preface section.




2. Install the refrigerant pressure sensor to the liquid line and tighten to 4.7 N·m (41 lb in).
3. Connect the electrical connector to the A/C refrigerant pressure sensor.
4. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 3.8L engine or Air Cleaner Assembly Replacement for the 5.3L (LS4) engine.
5. Leak test the fittings of the component using J 39400-A Halogen Leak Detector .