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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1537 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Crankcase Ventilation Hoses/Pipes Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: PCV Tube & Rocker Arm Cover
    GM551464Courtesy of GENERAL MOTORS CORP.
  1. Remove the throttle position (TP) sensor harness clip from the positive crankcase ventilation (PCV) tube.
  2. Remove the PCV tube from the right rocker arm cover and throttle body, if necessary.
    3. Fig 2: Left Rocker Arm Cover & PCV Valve Pipe
    GM379366Courtesy of GENERAL MOTORS CORP.
  3. If equipped with the regular production option (RPO) LS1 engine, remove the PCV valve pipe from the left rocker arm cover.
    4. Fig 3: Right Rocker Arm Cover & PCV Valve Pipe
    GM379367Courtesy of GENERAL MOTORS CORP.
  4. If equipped with the RPO LS1 engine, remove the PCV valve pipe strap nut.
  5. Remove the PCV valve pipe from the right rocker arm cover and intake manifold.
  6. If replacing the PCV valve pipe, remove the PCV valve from the pipe.
    7. Fig 4: PCV Valve Hose
    GM668802Courtesy of GENERAL MOTORS CORP.
  7. If equipped with the RPO LS6 engine, remove the PCV valve hose (1) from the valley cover and intake manifold.
  8. If replacing the PCV valve hose, remove the PCV valve from the hose.
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