GM Service Manual Online
For 1990-2009 cars only

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement LLT

Removal Procedure


    Object Number: 1976275  Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Remove two intake manifold insulator retaining pins (1)
  3. Remove the intake manifold insulator (2)

  4. Object Number: 887815  Size: SH
  5. Remove the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
  6. Remove the PCV fresh air tube from the air inlet.

  7. Object Number: 1977217  Size: SH
  8. Remove the PCV dirty air tube (1) from the right camshaft cover (2).
  9. Remove the PCV dirty air tube (1) from the intake manifold (3).

Installation Procedure


    Object Number: 1977217  Size: SH
  1. Install the PCV dirty air tube (1) to the intake manifold (3).
  2. Install the PCV dirty air tube (1) to the right camshaft cover (2).

  3. Object Number: 887815  Size: SH
  4. Install the PCV fresh air tube to the air inlet.
  5. Install the PCV fresh air tube to the left camshaft cover.

  6. Object Number: 1976275  Size: SH
  7. Install the intake manifold insulator (2)
  8. Install two intake manifold insulator retaining pins (1)
  9. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement LP1, LY7

Removal Procedure

  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.

  2. Object Number: 887815  Size: SH
  3. Remove the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
  4. Remove the PCV fresh air tube from the air inlet.

  5. Object Number: 902887  Size: SH
  6. Remove the PCV tube bracket bolts.
  7. Remove the PCV dirty air tube from the right camshaft cover.
  8. Remove the PCV dirty air tube from the intake manifold.

Installation Procedure


    Object Number: 902887  Size: SH
  1. Install the PCV dirty air tube to the intake manifold.
  2. Install the PCV dirty air tube to the right camshaft cover.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the PCV tube bracket bolts and tighten to 10 N·m (89 lb in).

  5. Object Number: 887815  Size: SH
  6. Install the PCV fresh air tube to the air inlet.
  7. Install the PCV fresh air tube to the left camshaft cover.
  8. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.