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