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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1497 (Engine Mechanical - 4.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankcase Ventilation Hoses/Pipes Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the crankcase clean air hose to the air cleaner outlet resonator (2).
  2. Connect the crankcase clean air hose to the valve cover port.
    Fig 1: Connecting Crankcase Clean Air Hose
    G02128475Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the 2 resonator to engine bolts (4) to the air cleaner outlet resonator (5).

    Tighten 

    Tighten the bolts to 6 N.m (53 lb in).

    Fig 2: Installing Resonator To Engine Bolts To Air Cleaner Outlet Resonator
    G02128476Courtesy of GENERAL MOTORS CORP.
  4. Tighten the throttle body clamps (2).

    Tighten 

    Tighten the clamps to 4 N.m (35 lb in).

  5. Connect the fuel pressure regulator vacuum supply hose to the air cleaner outlet resonator.
    Fig 3: Tightening Throttle Body Clamps
    G02128477Courtesy of GENERAL MOTORS CORP.
  6. Connect the crankcase dirty air hose to the intake manifold.
  7. Connect the crankcase dirty air hose to the PCV orifice tube.
    Fig 4: Connecting Crankcase Dirty Air Hose
    G02128478Courtesy of GENERAL MOTORS CORP.
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