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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Mechanical - 5.3L (L83) Or 6.2L (L86) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Center - L86)

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Center - L86)

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Fig 1: Positive Crankcase Ventilation Hose/Pipe/Tube (L86 - Center)
GM4008453Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Chevrolet and GMC)Air Cleaner Outlet Duct Replacement (Cadillac) .
  2. Disconnect the evaporative emissions canister purge valve tube from the valve and position aside. Refer to Evaporative Emission Canister Purge Tube Replacement .
1 Positive Crankcase Ventilation Tube
Procedure 
Disconnect the tube from the PCV valve and intake manifold. Refer to Plastic Collar Quick Connect Fitting Service .