GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the oil pan and filter. Refer to Changing Fluid and Oil Filter .

  2. Object Number: 159637  Size: SH
  3. Disconnect the electrical connector from solenoid valve.
  4. Remove retaining pin (2). Use pliers to pull pin out.
  5. Remove the solenoid (1).
  6. Remove the solenoid valve and wave washer.

Installation Procedure


    Object Number: 159637  Size: SH
  1. Install the solenoid valve (1) and wave washer.
  2. Install the retaining pin (2). Use a soft mallet to drive pin in.
  3. Connect the electrical connector.
  4. Install the oil pan and filter. Refer to Changing Fluid and Oil Filter .