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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.0L (LSY)) >> Repair Instructions >> Oil Pump Replacement >> Removal Procedure

Removal Procedure

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  1. Lower Oil Pan - Remove - Lower Oil Pan Replacement 
  2. GM5285836Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Level Indicator Control Module Wiring Harness (1) @ Oil Pump Flow Control Solenoid Valve (2) - Disconnect

  3. Retainer (3) - Unclip [2x]
  4. Engine Oil Level Indicator Control Module Wiring Harness (1) - Position aside
  5. GM5111486Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Oil Separator Drain Pipe (1) - Remove - Positive Crankcase Ventilation Oil Separator Drain Pipe Replacement 

  6. GM5108915Courtesy of GENERAL MOTORS COMPANY

    Oil Pump Screen (2) - Remove - Oil Pump Screen Replacement 

  7. GM5286394Courtesy of GENERAL MOTORS COMPANY

    EN-52442  Balance Shaft Holding Tool (1) - Install and hand tighten

  8. Use the crankshaft balancer to rotate the engine until the balance shaft weights contact the EN-52442  Balance Shaft Holding Tool (1).
  9. Slide the wedge of the EN-52442  Balance Shaft Holding Tool (2) to the balance shaft weights and tighten the EN-52442  Balance Shaft Holding Tool thumb screw (3) to hold the balance shafts in position.
  10. GM5286397Courtesy of GENERAL MOTORS COMPANY

    Balancer Shaft Bearing Bolt (1) - Remove [6x]

  11. Lower Crankcase Extension Bolt (2) - Remove
  12. Balancer Shaft Bearing Bolt (3) - Remove
  13. Remove the balancer shaft lower housing and oil pump as an assembly (4).
  14. GM5286400Courtesy of GENERAL MOTORS COMPANY

    Oil Pump Bolt (1) - Remove [3x]

  15. Oil Pump (2) - Remove
  16. Oil Pump Gasket (3) - Remove and DISCARD
  17. GM5299506Courtesy of GENERAL MOTORS COMPANY

    Oil Pump Seal (1) - Remove and DISCARD

  18. GM5299250Courtesy of GENERAL MOTORS COMPANY

    Oil Pump Drive Shaft (1) @ Oil Pump (2) - Remove

  19. Oil Pump Flow Control Solenoid Valve - Remove - Oil Pump Flow Control Solenoid Valve Replacement