GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Engine Oil and Oil Filter Replacement

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

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

Installation Procedure

    Object Number: 181988 Size: SH
  1. Install the oil filter to the engine block.
  2. Install the drain plug to the oil pan.
  3. Remove the safety stands and lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Fill the crankcase with oil. Refer to Fluid and Lubricant Recommendations in Maintenance and Lubrication.