Skip to main content
Intake Manifold/Chamber Assembly Removal and Installation


Exploded View
Removal
  1. Remove the engine wire harness connectors and wire harness clamps from the intake manifold chamber.
    • Throttle actuator connector
    • Manifold absolute pressure (MAP) sensor connector
    • Exhaust gas recirculation (EGR) valve connector
  1. Remove the brake booster vacuum hose (A) and the harness clamp (B).
  1. Remove the water bypass hose from the clamp (C).

  1. Remove the throttle body without disconnecting the water bypass hoses.

  1. Remove the harness holder mounting bolt, then remove the harness holder (A) from the bracket.
  1. Remove the positive crankcase ventilation (PCV) hose (B).
  1. Remove the dipstick.

  1. Remove the intake manifold bracket mounting bolts.
L15A7 engine
L13Z1 engine
L12B1 engine

  1. Remove the intake manifold/chamber assembly.

Installation
  1. Install the intake manifold/chamber assembly (A) with a new gasket (B), and tighten the bolts and nuts in a crisscross pattern in three steps, beginning with the inner bolt.

  1. With L15A7 engine: Loosen the intake manifold bracket mounting bolt (A), (B). Tighten the mounting bolts (C), then tighten the mounting bolt (A). Loosely tighten the mounting bolt (D), and tighten the mounting bolt (B), then tighten the mounting bolt (D).

  1. With L13Z1 engine, L12B1 engine: Loosen the intake manifold bracket mounting bolt (A). Tighten the mounting bolts (B), then tighten the mounting bolt (A).

  1. Install the throttle body (A) with a new gasket (B).
  1. Install the dipstick.

  1. Install the PCV hose (A) and harness holder (B).

  1. Install the water bypass hose to the clamp (A).
  1. Install the brake booster vacuum hose (B) and the harness clamp (C).
  1. Install the engine wire harness connectors and wire harness clamps to the intake manifold chamber.
    • Throttle actuator connector
    • MAP sensor connector
    • EGR valve connector