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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 >> Positive Crankcase Ventilation Oil Separator Cover Replacement >> Installation Procedure

Installation Procedure

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  1. Clean all sealing surfaces.
  2. Spray Low LOC brake cleaner on the LCE sealing surface and wipe off with a clean shop towel. Avoided touching the surface after cleaning and air dry with shop air. Adhesives, Fluids, Lubricants, and Sealers 
  3. Wipe the positive crankcase oil separator cover sealing surface with the Adhesion Plastic Pan Primer Promoter Adhesives, Fluids, Lubricants, and Sealers  with a clean shop towel. Allow the cleaner to flash / evaporate. Wipe off the sealing surfaces with a lint free cloth. Do not touch the sealing surface after cleaning to avoid inducing containment debris to the bonding surface area.
  4. Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant 
  5. GM5020635Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The positive crankcase oil separator cover sealing surface must be free of contamination prior to applying the sealer.
    • Install and align the positive crankcase oil separator cover to engine block within 10 minutes of applying the sealer.
    • The positive crankcase oil separator cover must be fastened to final torque specification within 15 minutes of applying the sealer.

    Apply approximately a 4 mm (0.16 in) thick bead of sealant (1) to the positive crankcase oil separator cover. Adhesives, Fluids, Lubricants, and Sealers 

  6. Install EN-52483  Guide Pin in two locations to keep the positive crankcase oil separator cover square.
  7. GM5153042Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Oil Separator Cover (1) - Install

  8. Check that the pin of the positive crankcase ventilation oil separator cover sits correct in the right hole.
  9. Fig 1: Identifying Positive Crankcase Ventilation Oil Separator Cover Bolts With Tightening Sequence
    GM5020630Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Positive Crankcase Ventilation Oil Separator Cover Bolt (1) - Install and tighten in sequence [11x] 8.5 N.m (75 lb in)

  10. GM5336347Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Engine Coolant Heater Cord (1) @ Engine Coolant Heater (2) - Install

  11. Battery Positive Cable Retainer @ Positive Crankcase Ventilation Oil Separator Cover - Install
  12. GM5066131Courtesy of GENERAL MOTORS COMPANY

    Starter (1) - Install - Starter Replacement (LSY)

  13. GM5065029Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Flow Control Valve (1) - Install - Engine Coolant Flow Control Valve Replacement