GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 35749 Oil Pressure Socket

Removal Procedure


    Object Number: 897643  Size: SH
  1. Turn ignition OFF.
  2. Disconnect engine oil pressure (EOP) switch harness connector.
  3. Remove the EOP switch using the J 35749 .

Installation Procedure


    Object Number: 897643  Size: SH
  1. Apply RTV sealant (or equivalent) to the EOP switch threads.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the EOP switch.
  4. Tighten
    Tighten the engine oil pressure switch to 22 N·m (16 lb ft).

  5. Connect the EOP switch harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
  6. Check the oil level and fill if low.
  7. Start the engine and check for leaks.