GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Chevy P12 Chassis 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Engine Oil and Oil Filter Replacement

Removal Procedure
  1. Open the hood or engine access.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 181988 Size: SH
  3. Remove the oil filter from the engine block.
  4. Remove the oil pan drain plug and drain the engine oil.

Installation Procedure

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 181988 Size: SH
  1. Install the oil filter to the engine block.

    2. Tighten
    Tighten the oil filter to 40 N·m (30 lb ft).

  2. Install the drain plug to the oil pan.

    3. Tighten
    Tighten the oil pan drain plug to 28 N·m (21 lb ft).

  3. Lower the vehicle.
  4. Fill the crankcase with oil. Refer to Approximate Fluid Capacities in General Information.
  5. Close the hood or engine access.