Part Description: 2008 Buick LaCrosse Manifold, Upper Intake
More Info
Vehicle Fitment
2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
FAQ for Intake Manifold Repair
Q: How do I remove the Upper Intake Manifold Sight Shield?
A:
Pull up on the front and rear of the sight shield to disengage the sight shield from the studs and remove the engine sight shield from the vehicle.
By Bob
GM Specialist
01/11/2022
Q: Can the intake manifold gaskets be reused?
A:
No, it is recommended the gaskets be replaced with new ones whenever the intake manifold is serviced.
By Bob
GM Specialist
01/11/2022
Q: What is the recommended bolt torque for the intake manifold bolts?
A:
Tighten the bolts a first pass in sequence to 5 NM (44 lb. in) then tighten the bolts a first pass in sequence to 10 NM (89 lb. in).
By Bob
GM Specialist
01/11/2022
Q: How do I install the Upper Intake Manifold Sight Shield?
A:
Align the sight shield to the studs on the intake manifold and push down in the 3 locations to secure the sight shield to the studs.
By Bob
GM Specialist
01/11/2022
Q: Which electric connectors will I need to disconnect?
A:
You will need to disconnect the EVAP purge solenoid, Manifold absolute pressure (MAP) sensor, Oil pressure sensor, and Valve lifter oil manifold.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: What is the throttle body assembly installation procedure?
A:
First, install a new Throttle Body gasket and position the throttle body to the intake manifold. Install the throttle body bolts and tighten them to 10 Nm. Connect the EVAP canister purge tube to the throttle body and install the air cleaner outlet duct. Finally, install the engine sight shield and connect a scan tool to test for proper throttle opening and throttle closing ranges.
Q: What is the air cleaner element installation procedure?
A:
First, install a new Air Filter element and install the air cleaner housing cover. Next, engage the spring clamps on top of the air cleaner housing and install the air cleaner outlet duct.
Q: What is the proper way to remove the manifold absolute pressure sensor?
A:
The proper way is to remove the engine sight shield, disconnect the MAP Sensor electrical connector, and remove the MAP sensor and the MAP sensor grommet.