GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Chevy P32 RV/Van Chassis 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Oil Filter Adapter and Bypass Valve Assembly Replacement

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 70416 Size: SH
  3. Remove the oil filter from the engine block. Refer to Engine Oil and Oil Filter Replacement .

    4. Object Number: 180862 Size: SH
  4. Remove the oil bypass valves, if required. Unstake the tangs on the oil bypass valves and remove with long nosed pliers.

Installation Procedure

    Object Number: 180862 Size: SH
  1. Install the new oil bypass valves. Stake the tangs on the new oil bypass valves.

    2. Object Number: 70416 Size: SH
  2. Install the oil filter to the engine block. Refer to Engine Oil and Oil Filter Replacement .
  3. Remove the safety stands and lower the vehicle.
  4. Connect the battery negative cables to the battery.
  5. Fill the engine with oil. Refer to the owner's manual for the correct grade and quantity.