GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 DTS 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement

Removal Procedure

    Object Number: 1661022 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. If servicing the positive ventilation crankcase (PCV) fresh air tube, perform the following steps, disconnect the PCV fresh air tube quick connect fitting at the left camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Disconnect the PCV fresh air tube quick connect fitting at the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Remove the PCV fresh air tube from under the brake booster vacuum hose and evaporative emission (EVAP) purge solenoid.

    5. Object Number: 1661040 Size: SH
  5. If servicing the PCV foul air tube, perform the following steps, remove the drive belt. Refer to Drive Belt Replacement .
  6. Remove the power steering pump bolt.
  7. With the power steering hoses attached, Carefully position the power steering pump aside.

    8. Object Number: 1661024 Size: SH
  8. Disconnect the PCV foul air tube quick connect fitting at the right camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
  9. Disconnect the PCV foul air tube quick connect fitting at the intake manifold fitting. Refer to Plastic Collar Quick Connect Fitting Service .
  10. Remove the PCV foul air tube from the retaining features on the intake manifold.

Installation Procedure

    Object Number: 1661024 Size: SH
  1. If servicing the PCV foul air tube, perform the following steps, connect the PCV foul air tube quick connect fitting to the right camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
  2. Connect the PCV foul air tube quick connect fitting at the intake manifold fitting. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Install the PCV foul air tube to the retaining features on the intake manifold.

    4. Object Number: 1661040 Size: SH
  4. Install the power steering pump into position.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the power steering pump bolt.

    6. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

  6. Install the drive belt. Refer to Drive Belt Replacement .

    7. Object Number: 1661022 Size: SH
  7. If servicing the PCV fresh air tube, perform the following steps, route the PCV fresh air tube under the brake booster vacuum hose and EVAP purge solenoid.
  8. Connect the PCV fresh air tube quick connect fitting at the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service .
  9. Connect the PCV fresh air tube quick connect fitting at the left camshaft cover. Refer to Plastic Collar Quick Connect Fitting Service .
  10. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .