Intake Manifold: Service and Repair
Intake ManifoldIntake Manifold (Part 1):
Intake Manifold (Part 2):
Removal and Installation
1. With vehicle in NEUTRAL, position it on a hoist.
2. Release the fuel pressure.
3. CAUTION: Before removing the high voltage cables, the vehicle electrical system must be completely shut down for at least 5 minutes to allow for the high voltage capacitors to discharge.
Disable the vehicle high voltage electrical system.
4. Remove the fuel rail.
5. Remove the throttle body.
6. Remove the accessory drive belt tensioner.
7. Remove the oil level indicator and tube.
8. Disconnect the engine oil pressure (EOP) switch electrical connector.
9. Disconnect the temperature manifold absolute pressure (TMAP) sensor electrical connector.
10. If equipped, disconnect the block heater electrical harness connector.
11. Disconnect the knock sensor (KS) electrical connector and detach the pin-type retainer.
12. Disconnect the fuel vapor return hose from the intake manifold.
13. NOTE: There are 2 different size bolts used. Mark the location of the bolts to make sure they are installed in the correct location.
Remove the 8 bolts and position the intake manifold aside to access the crankcase vent hose clamp and the exhaust gas recirculation (EGR) tube.
^ To install, tighten to 18 Nm (13 lb-ft).
14. Release the clamp and disconnect the crankcase vent hose.
15. Remove the EGR tube.
^ To install, tighten to 55 Nm (41 lb-ft).
16. Remove the intake manifold and gaskets.
17. To install, reverse the removal procedure.
^ Inspect and install new intake manifold gaskets if necessary.