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Oil Pump Installation

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect for properly installed oil pump locator pins.
    2. Fig 1: Oil Pump Locator Pins Proper Installation Position
    GM330578Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not reuse the oil pump driveshaft retainer.
    During assembly, install a NEW oil pump driveshaft retainer.
  2. Install the oil pump.
    3. Fig 2: Installing Oil Pump
    GM330576Courtesy of GENERAL MOTORS CORP.
  3. Position the oil pump onto the pins.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the oil pump bolt attaching the oil pump to the rear crankshaft bearing cap.

    Tighten:  Tighten the oil pump bolt to 90 N.m (66 lb ft).

    5. Fig 3: Installing Oil Pump Bolt
    GM330572Courtesy of GENERAL MOTORS CORP.
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