Upper Intake Manifold Replacement
Upper Intake Manifold Replacement
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the intake manifold cover.
3. Remove the vacuum hoses from the following:
* Evaporative emissions (EVAP) canister purge valve
* Manifold vacuum source
* Brake booster
* Heater and air conditioning (A/C) source
4. Disconnect the electrical connectors from the following:
* Exhaust gas recirculation (EGR) valve
* Mass air flow (MAF) sensor
* Intake air temperature (IAT) sensor
* Electronic throttle control
* EVAP canister purge valve
5. Remove the air cleaner outlet duct.
6. Drain the cooling system. Refer to Draining and Filling Cooling System (LY7, LZ4, LZ9 Static Fill) Draining and Filling Cooling System (GE 47716 Fill) Draining and Filling Cooling System (LE5 Static Fill) .
7. Remove the left side spark plug wires from the spark plugs.
8. Remove the following wiring harnesses from the retainers:
* Camshaft position (CMP) sensor wiring harness
* Left side spark plug wire harness
* Engine wiring harness
9. Remove the ignition coil bracket with the coils.
10. Remove the EVAP canister purge solenoid valve.
11. Remove the manifold absolute pressure (MAP) sensor and the bracket.
12. Remove the EGR valve.
13. Remove the upper intake manifold bolts and the stud.
14. Remove the upper intake manifold.
15. Remove the upper intake manifold gaskets.
16. If replacing the upper intake manifold, remove the throttle body. Refer to Throttle Body Assembly Replacement .
17. Clean the upper intake gasket mating surfaces.
Installation Procedure
1. If removed, install the throttle body.
2. Install the upper intake manifold gaskets.
3. Install the upper intake manifold.
Notice: Refer to Fastener Notice .
4. Install the right upper intake manifold bolts and the stud.
Tighten the bolts and the stud to 25 N.m (18 lb ft).
5. Install the EGR valve.
6. Install the MAP sensor bracket and the sensor.
7. Install the EVAP canister purge solenoid valve.
8. Install the ignition coil bracket with the coils.
9. Install the following wiring harnesses to the retainers:
* Engine wiring harness
* Left side spark plug wire harness
* CMP sensor wiring harness
10. Install the left side spark plug wires to the spark plugs.
11. Install the air cleaner outlet duct.
12. Connect the electrical connectors to the following:
* EVAP canister purge valve
* Electronic throttle control
* IAT sensor
* MAF sensor
* EGR valve
13. Install the vacuum hoses to the following:
* Heater and A/C source
* Brake booster
* Manifold vacuum source
* EVAP canister purge valve
14. Connect the negative battery cable.
15. Fill the cooling system. Refer to Draining and Filling Cooling System (LY7, LZ4, LZ9 Static Fill) Draining and Filling Cooling System (GE 47716 Fill) Draining and Filling Cooling System (LE5 Static Fill) .
16. Install the intake manifold cover.