GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2003 🢒 Grand Am 🢒 Engine 🢒 Engine Mechanical - 3.4L 🢒 Oil Filter Adapter and Bypass Valve Assembly Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Object Number: 387259 Size: SH
  2. Drain the oil.
  3. Remove the oil filter.
  4. Verify that the gasket is removed with the filter.

    5. Object Number: 387188 Size: SH
  5. Remove the oil filter adapter.

    6. Important: Do not pry against the threads in the oil filter bypass hole when removing the bypass valve.

  6. Remove the oil filter bypass valve using a screwdriver or a punch in order to pry the valve out.
  7. Clean the oil filter mounting surface.

Installation Procedure

    Object Number: 387188 Size: SH
  1. Install the oil filter bypass valve. Seat the valve using a socket of the same diameter and a mallet.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the oil filter adapter.

    3. Tighten
    Tighten the adapter to 39 N·m (29 lb ft).


    Object Number: 189001 Size: SH
  3. Set the gasket in place and install the filter. Turn the filter ¾-1  complete turn after the gasket contacts the surface of the block.
  4. Lower the vehicle.
  5. Start the vehicle and test for leaks.