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Home >> GMC >> 1996 >> C3500 HD 7.4 J, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Engine Mechanical - 5.0L V8 - VIN [M]) >> Engine Oiling >> Oil Pump >> Removal & Disassembly

Removal & Disassembly

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1997 GMC Savana, 1997 GMC Pickup, 1997 Chevrolet Pickup, 1997 Chevrolet Chevy Van, and 1997 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Pick-up tube is serviceable; however, unless tube is damaged, DO NOT remove tube from pump body.
  1. Remove oil pan. See OIL PAN  under REMOVAL & INSTALLATION. Remove oil pump bolt. Remove pump and extension shaft. If necessary, remove pick-up tube.
  2. Remove pump cover. Mark relationship between gears at a meshing point for reassembly. Remove gears. Remove pressure regulator valve retaining pin. Remove pressure regulator valve and spring. Remove oil pump-to-rear crankshaft bearing cap bolt. Remove oil pump, retainer and driveshaft from rear crankshaft bearing cap.
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