GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Envoy - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Oil Pump Replacement

Removal Procedure

    Object Number: 4548 Size: SH
  1. Remove the oil pan Refer to Oil Pan Replacement .
  2. Remove the oil pump. Refer to Oil Pump Removal .
  3. Clean and inspect all parts. Refer to Oil Pump Clean and Inspect .

Installation Procedure

    Object Number: 4548 Size: SH

    Important: Install a NEW oil pump driveshaft retainer.

  1. Install the oil pump. Refer to Oil Pump Installation .
  2. Install the oil pan Refer to Oil Pan Replacement