Intake Manifold: Service and Repair
Intake Manifold Removal and InstallationIntake Manifold:
Removal
1. Remove the intake manifold cover.
2. Remove the breather pipe (A), then remove the air intake duct (B).
3. Remove the positive crankcase ventilation (PCV) hose (A), brake booster vacuum hose (B), and evaporative emission (EVAP) canister purge hose (C).
4. Remove the engine wire harness connectors and wire harness clamps from the intake manifold.
- Intake air temperature (IAT) sensor connector
- Throttle actuator connector
- Manifold absolute pressure (MAP) sensor connector
- Evaporative emission (EVAP) canister purge valve connector
- Intake manifold tuning (IMT) valve actuator connector
5. Remove the harness clamp bracket (A) and water bypass hoses (B), then plug the water bypass hoses.
6. Remove the upper cover mounting bolts and nuts sequentially, in two or three steps, then remove the upper cover.
7. Remove the intake manifold mounting bolts and nuts sequentially, in two or three steps, then remove the intake manifold and spacer.
Installation
1. Put a new gasket and the spacer on the injector base.
2. Install the intake manifold. Tighten the bolts and nuts sequentially, in two or three steps. Always use a new intake manifold gasket.
3. Install the upper cover. Tighten the bolts and nuts sequentially, in two or three steps. Always use a new gasket.
4. Install the harness clamp bracket (A) and water bypass hoses (B).
5. Connect the engine wire harness connectors, and install the wire harness clamps to the intake manifold.
- Intake air temperature (IAT) sensor connector
- Throttle actuator connector
- Manifold absolute pressure (MAP) sensor connector
- Evaporative emission (EVAP) canister purge valve connector
- Intake manifold tuning (IMT) valve actuator connector
6. Install the positive crankcase ventilation (PCV) hose (A), brake booster vacuum hose (B), and evaporative emission (EVAP) canister purge hose (C).
7. Install the air intake duct (A), then install the breather pipe (B).
8. Clean up any spilled engine coolant.
9. After installation, check that all tubes, hoses and connectors are installed correctly.
10. Install the intake manifold cover.
11. Refill the radiator with engine coolant, then bleed air from the cooling system with the heater valve open.