GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2009
🢒
STS
🢒
Engine
🢒
Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L
🢒 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Positive Crankcase Ventilation Hose/Pipe/Tube Replacement LLT
Removal Procedure
Remove the fuel injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.
Remove two intake manifold insulator retaining pins (1)
Remove the intake manifold insulator (2)
Remove the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
Remove the PCV fresh air tube from the air inlet.
Remove the PCV dirty air tube (1) from the right camshaft cover (2).
Remove the PCV dirty air tube (1) from the intake manifold (3).
Installation Procedure
Install the PCV dirty air tube (1) to the intake manifold (3).
Install the PCV dirty air tube (1) to the right camshaft cover (2).
Install the PCV fresh air tube to the air inlet.
Install the PCV fresh air tube to the left camshaft cover.
Install the intake manifold insulator (2)
Install two intake manifold insulator retaining pins (1)
Install the fuel injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.
Positive Crankcase Ventilation Hose/Pipe/Tube Replacement LP1, LY7
Removal Procedure
Remove the fuel injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.
Remove the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
Remove the PCV fresh air tube from the air inlet.
Remove the PCV tube bracket bolts.
Remove the PCV dirty air tube from the right camshaft cover.
Remove the PCV dirty air tube from the intake manifold.
Installation Procedure
Install the PCV dirty air tube to the intake manifold.
Install the PCV dirty air tube to the right camshaft cover.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the PCV tube bracket bolts and tighten to
10 N·m (89 lb in)
.
Install the PCV fresh air tube to the air inlet.
Install the PCV fresh air tube to the left camshaft cover.
Install the fuel injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.